With the tariffs we have today COP is irelivent to running costs and load shifting with battery's and heating is the way forward. As you say, I run both my heating and hot water hotter when the rates are cheap, this effects my COP and overall the combined average of SCOP. SCOP can also be made better by running the heating in milder weather (when really it's not needed), this will then thin out the so called SCOP. Comparing heat pump systems against systems, can be manipulated to look good if an installer is making Mr Smiths system running when it's 18⁰ outside, with a flow temperature of say 25⁰. When comparing systems I would only be looking at say Oct/Nov to March. BTW I install heat pumps for a living.
Are you comparing when you were on gas to now being on a heat pump, or are you skewing the figures massively with now also having a battery and solar? And how are you accounting for the huge £10K+ cost of these in your figures?
You can see on my screenshots what the heat pump made in heat with a little math you can work that into gas via boiler it would mean my gas bill would have been £98 alone…. The battery and solar just mean the heat pump is even cheaper to run than it would normally but it’s cheaper without them existing but to not account for them would be… well stupid
And people wonder why the take up of heat pumps isn’t as much as they think it should be. Jo blogs wants the system to do it for them and them having to work all this out often means they don’t, and then end up saying after having them fitted, heat pumps don’t work my house is always cold and we never have hot water. I know they should have had a good installation and taken through the process, but really Mr and Mrs (or whatever the combination might be) Average can’t be doing with working it all out. And before you say it that doesn’t meant they should have it.
I have a heat pump, set at 19.5 degrees c in hallway and warmer in living room, 24 hours a day. Use approximately 4000kw per year. 4000 x 21p=£840 per year to heat a 4 bedroom 1960’s semi in Yorkshire with hot water. Simples and happy.
You don't "need" to work this out. Nicks doing it to show that it works. I'm sorry your install was bad but that doesn't mean HPs are bad. Did you go back to the installer to get them to fix it?
@ I haven’t got a heat pump yet so I haven’t (and won’t) have a bad experience, I’m talking about people who don’t watch TH-cam and the everyday Jo who is being told that they need to move a heat pump.
@Gazmaz so how do you know they don't work? You're entitled to your opinion but it's nothing more than that. There is loads of evidence that if designed and installed correctly they are cheaper to run and offer better comfort. Your opinion about being cold and having no hot water is just an opinion. I'd get some facts before jumping in on discussions.
@@gmuzz jeez you don’t get it, I didn’t say they don’t work, maybe if read my comment you’d understand where I’m coming from, actually I’m on the side of heat pumps, and have had several quotes, main point is my name isn’t Jo bloggs……..
I pay 200 a year for heating. Log burner. Thr fact is, when it comes down to these things. Cost, wellbeing and emissions Cost and wellbeing come first. I am not going to go broke or freeze. Just to pat myself on the back over emissions that have next to zero impact on the grand scheme of things That will be the position for the vast majority of the population. You want them to be adopted. Then they need to be more cost-effective
@@NicolasRaimo That's a lie, Air today is the cleanest it has been in centuries. London. well. pretty much all of the UK was covered in a cloud of smog from industry. that has not been the case for decades. In fact, now the some of the dirtiest places are actual public transport. The irony is, London is pushing people to use public transport to "reduce car emissions" when the streets have safer air than the tubes do.
... And indoor pollution. George Monbiot wrote a very strong piece about log burners a year or so back - I ripped mine out after reading it (though it was well timed, I was renovating anyway).
I would be more worried about the pollution on public transport such as the underground than what is on the street. The street are the cleanest they have been for over 200 years
My boiler has an Efficiency Level Screen and I’ve tracked it for the last two years watching it climb slowly. I can also see the flow and return temps so ensure these are as low as possible (return very low so that it’s always condensing). I can split my DHW temps and my heating temps, so if I heat my DHW this goes to a higher temperature. I use EvoHome with Opentherm and have UFH on the ground floor and emitters everywhere else. I have an eddi, so sometimes I’ll use this especially with free electricity etc etc. I’m hoping I can get the boiler greater than 94% 😂, but time will tell.
Heat pumps themselves are generally excellent! Unfortunately in the UK the current price ratio of gas to electric tariffs make them uneconomical! It’s as simple as that!
The cosy tariff is ok in theory but I’m on intelligent octopus go! If I switched to cosy to save cost for a heat pump I would lose out on night charging my EV! The two requirements seem incompatible for me!
Cosy just doesn't make much sense to me. You haven't got enough cheap hours to run efficiently. I am wondering if Octopus have a hybrid heat pump/battery in the pipeline - make it a single install. Single install would be cheaper, small batteries regularly cycling would pay back quickly, and regular "off peak" intervals allow for that sort of operation.
So if you needed 1360kwh of heat for the month that would have been about 1430kwh of gas (assuming 90% efficient boiler). Dont know what gas tariff you were on but at a standard variable of 6.5p thats £93. Good savings for the first full month. Would be interesting to know what your gas consumption was last November?
Why wouldn't I tell you that?. My last video for the month before commented on October's gas vs October heat pump bill and people complained I shouldn't compare 2 months of 2 different years as temperatures of years can be very different. More mild, colder etc etc... Last year the home was empty for longer periods so the day temperature setback was much lower. My wife is on maternity currently so the heating is on all the time. However seeing you asked, November 2024 the heat pump made 1360kwh of heat November 2023 I used £87.99 worth of gas which was 1156kwh
Looked at my smart meter reading for the last year and I have 10 months of data, total cost of gas is £884 for 10 months so an average of £2.95 a day, 4 bed detached house and wife works from home so heating on all day in parts of the house and on from 6 till 9 and 15 to 21 hours daily, use a Tado in every room and room temp is 22 degrees, heat pump numbers don’t add up for me, I’m sure I will be taken to task over the numbers but these are true numbers and not BS.
I’m always into change and have wrestled with the heat pump decision, I like a warm house and hot water coming out of the tap, I have watched a million videos on heat pumps and some say “oh my house is a perfect temperature” and how much they save but then they say they live with a house temperature of 19, this is cold to me, I was thinking of getting an Intragas hybrid system that uses the heat pump most of time but has that boost of gas when needed, what’s your thoughts on that?
@@peterf7248 you don’t need gas a heat pump can easily do 22c rooms if that’s what you want it’s down to the size of the emitters (rads) my lounge as I type this is 22c this is the room we spend most time, rest of the house is between 20-21c. Like you 19c too cool for me I even like my bedroom above 19
Im the same as you, I dont believe some of the backwards figs that they work out, showing how much gas they would of used, compared to a gas boiler. I dont use anywhere near some of the figs! At a COP of 3 on its own a heat pump will certainly not save you a bean. I think Nic still has to use an electric shower, coz he runs out of hot water. You can save with a heat pump, but you have to invest thousands of pounds up front for solar and lots of battery storage and then use all the cosy/dosy/agile/go tariffs to import cheap electric. Then it is only a saving once you have paid off the cost! which is on top of the taxpayer funded £7.5K.
@ at a cop of 3 the octopus cosy deal at 12p a kwh is cheaper than gas… I still have an electric shower as the cost of piping it till it’s broke isn’t worth it
That COP is awful. We had a Mitsubishi Ecodan installed by a local specialist, same price as an octopus install, but with all radiators replaced rather than just the 3 octopus wanted to do. Our COP was 4.1 for November heating and hot water, running it on cheap rate electricity slots like you did, which might have had a tiny hit to the COP although the night time temperatures havnt been drastically different to daytime. Your install might struggle to meet Octopus own low standards of 3.6 SCOP given that its not even proper winter yet.
@NicolasRaimo my point was I run ours the same way and it gets much better COP. But with cheap rate night electricity it almost doesn't matter how poor the COP is.
My house is always warm with my heat pump AND it costs about 1/2 the running costs vs my gas boiler. If I moved house, I'd put in a heat pump, ideally with under floor heating. Also, the gas combi was noisier.
What were the electric requirements of the heat pump installation? New circuit for it? How many amps? What's that max wattage you've seen it draw? Having my survey in a couple of days and my main concern is the electrics since we just redecorated and I think we'll need to put it in its own electrical circuit since our boiler shared the one with the sockets downstairs
See the install video it’s likely got a lot of answers to your questions but they will put a separate supply in if octopus are fitting it included in quote
@NicolasRaimo thanks I did watch it but did not see those specifics, I will watch it again but if you don't mind leaving those details here I'd appreciate it
@ I think it’s a 16amp spur as shown on the outside of my home near meter, they split early ones tales when fitting it so won’t be an issue. I don’t watch its pull but around 3kw max I think but rarely seen it do over 2
My 5kW Vaillant would run off a 13A socket, its maximum draw is less than a kettle. Obviously it's on its own circuit, they have to be, but for most cases it shouldn't be a problem unless you have a large one that's 3 phase.
They are correct and wrong…. It’s massively going to depend on who wired your batteries did they wire them correctly or the lazy way. The correct way is they moved the CT clamp for solar right next to where the meter is… Lazy way is they in same consumer panel as battery… If the 1st way when octopus split the tails just tell engineer on site on day you want battery to power heat pump and they will move that CT clamp to cover entire home load if the 2nd way your original installer needs to come back. Hope this helps if it does please consider my refferal code
I would consider that cop as solid, but not stellar. I was hoping it would be a tad higher, but the length of the outside pipes and interior plastic microbore means in context it's ok, especially considering Octopus state the efficiency as 340%, so pretty close. Also, at this efficiency it's a very quick return on investment given the price you paid! Bargain really. :)
Our bill for November was £10 more than 2023 and December was £2 more expensive than 2023. We have a Daikin 4 kW heat pump. That is a pure price comparison, but comparing gas unit prices, 2023 to 2024. We have a gas hob so haven’t turned off the gas. Without the gas cost, we would have made a small profit. Saying that, we didn’t do it for the profit. We wanted to get rid of one more gas boiler.
Very hard to compare your results to how things might work in a different setup. That’s no criticism of you, just that I guess you have the headroom within your battery storage to offset much of the extra energy consumption. My limited storage is pretty maxed out ( at a little less than 5kWh) so would not have the capacity to offset much heat pump consumption, if any, during the winter months. Would you be able to know how many kWh of electricity you actually used on your heat pump during November and that actually would give me a better starting point?
I stated heat pump units at end also in screenshot of app if that helps, but yes totally agree it’s hard to compare, with your battery being small I’d go on octopus cosy deal and charge it during every 12p window, But 5kwh too small for general use I’d look at adding around 10-20kwh to it if I was you!
Problem is, even with a battery, you are robbing Peter to pay Paul. So Octopus Cosy would mean for ourselves paying more at peak time when cooking meals. Simply going to sweat the Combi until / if the green energy revolution brings prices down so a HP is financially worth it
I am also on cosy tariff. There are 3 off peak periods 4-7am 1-4pm 10pm-midight. So can charge the battery 3 times a day and only ever pay off peak for any type of (non EV) use.
Cosy tariff has 3 off peaks - 8 hours off peak. The house will also the grid while the battery is charging (3 times per day). So with a 5kWh battery you can get 15kWh in the battery plus all the electricity you use from the grid in addition to the 15kWh during the charging/off peal periods. So if your house uses 1kW that's another 8kWh giving 23kWh total off peak usage. I have a 12kWh battery and use about 20kWh/d and only ever pay for off peak .
Looking forward to my install in feb and then gas is no more late march or early april they will be back with the pw3 and 19kw of solar panels. Will the see how it goes and i might have the tank changed for a sunamp heat battery but thats some point in the future
Because he’s not got a heat pump and is just trolling as if that’s true I’d be going back to installer or heat pump manufacturer and demanding a repair
It’s been proven heat pumps work but they are always reported in ideal homes with solar and batteries. How does a heat pump work in a large 4/5 bedroom family home with no solar no batteries and no EV. Because there are stacks of homes in UK that are not ideally suited to a heat pump in my opinion
Fine... its down to insulation as it runs at a lower flow temperature so you need to get heat loss of the building down to run lower and cost less than gas... they can work in homes with no insulation it will just cost more to run it or require much larger radiator upgrades... You don't need solar or a battery or ev either.. PS this is a 4 bed home
i have a similar year age house but bigger ( 4 bed detached)and we went for daikin over cosy, we got 4kw daikin and heat to 20c are November cop is 4.2, very glad i went with my gut feeliing the dakin would be more efficient
Is that combined hot water? And where in country are you it gets very cold round here. Also an on microbore with a long pipe run… can’t compare apples with pears… Also remember I’ve been running extra hot water cycles and am running for cost not cop
My COP for November was 5.3 for heating, 5.1 combined, that's from the Vaillant app though, not a proper open source monitor. My bills were a fair bit cheaper than for gas, which is the most important thing financially, the real most important thing is the massive carbon saving.
@@marklola12 no Mark, not touchy, just trying to get the data. Our Cosy 6 ran at 3.13 in November, but only cost £500 to install. Also we were running intermittently but at lower temperatures, so this information is important.
3.1 is a pretty rubbish COP. I'm getting nearly 3.5 right now and it's 1C outside, albeit in a properly renovated house. Your videos are all I've really seen on the Cosy, but it's concerning that the traditional moves for improving COP like reducing the flow temperature didn't work for you. I'm conflicted, because Octopus have designed these things to throw in at minimal expense to work Okish in poorly designed heating systems - maybe that's what the industry needs given UK housing stock and high cost barriers for installs, but relying on smart tech to compensate doesn't work in a dunkleflaute. People need heat and we need extra fossil generation capacity to power inefficient heat pumps. I wonder if they're turning down installs for houses suited to low temperature where it's obvious that competitor pumps would be far better suited...
The entire point of this video is talking about how I’m not running this for cop, I’m running for best price which is hurting my cop score, I also have the least ideal pipe run, someone on cosy forum got there’s to over 4cop for same period. We need to ignore cop as a metric sometime and look at the true running costs
@ 1st Dec. 2023 1st Jan. 2024 4436.8 Smart meter reading 4562.6 Smart meter reading Consumption 125.8 Units (m3) Energy Used* 1436.3 kWh @ 6.57p/kWh £94.36 Standing Charge 31 days @ 26.16p/day £8.11 Average £3.50 a day so like I said colder days £4 some days less no issue with meter
@@NicolasRaimo large upfront cost brushed over , manipulated calcs using tariffs , manipulated cop by running heating when you don't need it . Gas heating on an hour before you get home , off when you go to bed and comfortable all night . no need to account for large asset depreciation costs
@@NicolasRaimo you installed a heat pump, solar panels a battery,- bought a car ... used cheap tariff to heat when you didn't need to:- see how you mis represent.
Go to evnick.com/energy to split £200 with me off a heat pump install
With the tariffs we have today COP is irelivent to running costs and load shifting with battery's and heating is the way forward. As you say, I run both my heating and hot water hotter when the rates are cheap, this effects my COP and overall the combined average of SCOP. SCOP can also be made better by running the heating in milder weather (when really it's not needed), this will then thin out the so called SCOP. Comparing heat pump systems against systems, can be manipulated to look good if an installer is making Mr Smiths system running when it's 18⁰ outside, with a flow temperature of say 25⁰.
When comparing systems I would only be looking at say Oct/Nov to March.
BTW I install heat pumps for a living.
Are you comparing when you were on gas to now being on a heat pump, or are you skewing the figures massively with now also having a battery and solar? And how are you accounting for the huge £10K+ cost of these in your figures?
You can see on my screenshots what the heat pump made in heat with a little math you can work that into gas via boiler it would mean my gas bill would have been £98 alone…. The battery and solar just mean the heat pump is even cheaper to run than it would normally but it’s cheaper without them existing but to not account for them would be… well stupid
And people wonder why the take up of heat pumps isn’t as much as they think it should be. Jo blogs wants the system to do it for them and them having to work all this out often means they don’t, and then end up saying after having them fitted, heat pumps don’t work my house is always cold and we never have hot water. I know they should have had a good installation and taken through the process, but really Mr and Mrs (or whatever the combination might be) Average can’t be doing with working it all out. And before you say it that doesn’t meant they should have it.
I have a heat pump, set at 19.5 degrees c in hallway and warmer in living room, 24 hours a day. Use approximately 4000kw per year. 4000 x 21p=£840 per year to heat a 4 bedroom 1960’s semi in Yorkshire with hot water. Simples and happy.
You don't "need" to work this out. Nicks doing it to show that it works. I'm sorry your install was bad but that doesn't mean HPs are bad. Did you go back to the installer to get them to fix it?
@ I haven’t got a heat pump yet so I haven’t (and won’t) have a bad experience, I’m talking about people who don’t watch TH-cam and the everyday Jo who is being told that they need to move a heat pump.
@Gazmaz so how do you know they don't work? You're entitled to your opinion but it's nothing more than that. There is loads of evidence that if designed and installed correctly they are cheaper to run and offer better comfort. Your opinion about being cold and having no hot water is just an opinion. I'd get some facts before jumping in on discussions.
@@gmuzz jeez you don’t get it, I didn’t say they don’t work, maybe if read my comment you’d understand where I’m coming from, actually I’m on the side of heat pumps, and have had several quotes, main point is my name isn’t Jo bloggs……..
I pay 200 a year for heating. Log burner.
Thr fact is, when it comes down to these things. Cost, wellbeing and emissions
Cost and wellbeing come first.
I am not going to go broke or freeze. Just to pat myself on the back over emissions that have next to zero impact on the grand scheme of things
That will be the position for the vast majority of the population.
You want them to be adopted. Then they need to be more cost-effective
Local air population is a real problem and log burners add to local pollution
@@NicolasRaimo That's a lie, Air today is the cleanest it has been in centuries.
London. well. pretty much all of the UK was covered in a cloud of smog from industry. that has not been the case for decades.
In fact, now the some of the dirtiest places are actual public transport.
The irony is, London is pushing people to use public transport to "reduce car emissions"
when the streets have safer air than the tubes do.
... And indoor pollution. George Monbiot wrote a very strong piece about log burners a year or so back - I ripped mine out after reading it (though it was well timed, I was renovating anyway).
I would be more worried about the pollution on public transport such as the underground than what is on the street.
The street are the cleanest they have been for over 200 years
@ becuase people stopped burning things in their homes to keep warm.
My gas boiler is currently 0.94 as I’m running it a low temps ready for an ASHP.
How you monitoring that?
My boiler has an Efficiency Level Screen and I’ve tracked it for the last two years watching it climb slowly. I can also see the flow and return temps so ensure these are as low as possible (return very low so that it’s always condensing). I can split my DHW temps and my heating temps, so if I heat my DHW this goes to a higher temperature. I use EvoHome with Opentherm and have UFH on the ground floor and emitters everywhere else. I have an eddi, so sometimes I’ll use this especially with free electricity etc etc. I’m hoping I can get the boiler greater than 94% 😂, but time will tell.
Heat pumps themselves are generally excellent! Unfortunately in the UK the current price ratio of gas to electric tariffs make them uneconomical! It’s as simple as that!
St standard prices the ratio means with my cop price parity, however switch to cost at 12p your total combined bill be much much less
The cosy tariff is ok in theory but I’m on intelligent octopus go! If I switched to cosy to save cost for a heat pump I would lose out on night charging my EV! The two requirements seem incompatible for me!
Intelligent go plus heat pump save you money
Cosy just doesn't make much sense to me. You haven't got enough cheap hours to run efficiently.
I am wondering if Octopus have a hybrid heat pump/battery in the pipeline - make it a single install. Single install would be cheaper, small batteries regularly cycling would pay back quickly, and regular "off peak" intervals allow for that sort of operation.
I’m trying the maths as well as no solar or batteries but iog for my Tesla. Guess I’ll be heating water and running heating hard early hours?
@@bringiton8989 cosy deal works if you don’t have an EV on your EV does little mileage
So if you needed 1360kwh of heat for the month that would have been about 1430kwh of gas (assuming 90% efficient boiler). Dont know what gas tariff you were on but at a standard variable of 6.5p thats £93. Good savings for the first full month. Would be interesting to know what your gas consumption was last November?
He will not tell you that!
Why wouldn't I tell you that?. My last video for the month before commented on October's gas vs October heat pump bill and people complained I shouldn't compare 2 months of 2 different years as temperatures of years can be very different. More mild, colder etc etc... Last year the home was empty for longer periods so the day temperature setback was much lower. My wife is on maternity currently so the heating is on all the time.
However seeing you asked,
November 2024 the heat pump made 1360kwh of heat
November 2023 I used £87.99 worth of gas which was 1156kwh
Looked at my smart meter reading for the last year and I have 10 months of data, total cost of gas is £884 for 10 months so an average of £2.95 a day, 4 bed detached house and wife works from home so heating on all day in parts of the house and on from 6 till 9 and 15 to 21 hours daily, use a Tado in every room and room temp is 22 degrees, heat pump numbers don’t add up for me, I’m sure I will be taken to task over the numbers but these are true numbers and not BS.
My electric price includes charging my electric car and my entire energy bill for month was almost same as your gas… heat pump will save you money
I’m always into change and have wrestled with the heat pump decision, I like a warm house and hot water coming out of the tap, I have watched a million videos on heat pumps and some say “oh my house is a perfect temperature” and how much they save but then they say they live with a house temperature of 19, this is cold to me, I was thinking of getting an Intragas hybrid system that uses the heat pump most of time but has that boost of gas when needed, what’s your thoughts on that?
@@peterf7248 you don’t need gas a heat pump can easily do 22c rooms if that’s what you want it’s down to the size of the emitters (rads) my lounge as I type this is 22c this is the room we spend most time, rest of the house is between 20-21c. Like you 19c too cool for me I even like my bedroom above 19
Im the same as you, I dont believe some of the backwards figs that they work out, showing how much gas they would of used, compared to a gas boiler. I dont use anywhere near some of the figs!
At a COP of 3 on its own a heat pump will certainly not save you a bean.
I think Nic still has to use an electric shower, coz he runs out of hot water.
You can save with a heat pump, but you have to invest thousands of pounds up front for solar and lots of battery storage and then use all the cosy/dosy/agile/go tariffs to import cheap electric. Then it is only a saving once you have paid off the cost! which is on top of the taxpayer funded £7.5K.
@ at a cop of 3 the octopus cosy deal at 12p a kwh is cheaper than gas… I still have an electric shower as the cost of piping it till it’s broke isn’t worth it
That COP is awful. We had a Mitsubishi Ecodan installed by a local specialist, same price as an octopus install, but with all radiators replaced rather than just the 3 octopus wanted to do. Our COP was 4.1 for November heating and hot water, running it on cheap rate electricity slots like you did, which might have had a tiny hit to the COP although the night time temperatures havnt been drastically different to daytime.
Your install might struggle to meet Octopus own low standards of 3.6 SCOP given that its not even proper winter yet.
My heat pump isn't run to get the best cop I run it to get the best price per kWh, sometimes that hurts my cop
@NicolasRaimo my point was I run ours the same way and it gets much better COP.
But with cheap rate night electricity it almost doesn't matter how poor the COP is.
@ also my cost of install was £1350… everyone else was asking £8000 which would take 19 years to see payback
My house is always warm with my heat pump AND it costs about 1/2 the running costs vs my gas boiler. If I moved house, I'd put in a heat pump, ideally with under floor heating. Also, the gas combi was noisier.
Thanks for sharing!
Overall this looks pretty good Nick. Our cosy install is now down for 27th of Jan, we swapped to induction a week ago so off with the gas soon enough!
How good is an induction hob! Blew my mind
What were the electric requirements of the heat pump installation? New circuit for it? How many amps? What's that max wattage you've seen it draw?
Having my survey in a couple of days and my main concern is the electrics since we just redecorated and I think we'll need to put it in its own electrical circuit since our boiler shared the one with the sockets downstairs
See the install video it’s likely got a lot of answers to your questions but they will put a separate supply in if octopus are fitting it included in quote
@NicolasRaimo thanks I did watch it but did not see those specifics, I will watch it again but if you don't mind leaving those details here I'd appreciate it
@ I think it’s a 16amp spur as shown on the outside of my home near meter, they split early ones tales when fitting it so won’t be an issue. I don’t watch its pull but around 3kw max I think but rarely seen it do over 2
My 5kW Vaillant would run off a 13A socket, its maximum draw is less than a kettle.
Obviously it's on its own circuit, they have to be, but for most cases it shouldn't be a problem unless you have a large one that's 3 phase.
Thanks both
Did Octopus connect your ASHP to your house batteries as they’ve told me that they don’t?
They are correct and wrong…. It’s massively going to depend on who wired your batteries did they wire them correctly or the lazy way.
The correct way is they moved the CT clamp for solar right next to where the meter is…
Lazy way is they in same consumer panel as battery…
If the 1st way when octopus split the tails just tell engineer on site on day you want battery to power heat pump and they will move that CT clamp to cover entire home load if the 2nd way your original installer needs to come back.
Hope this helps if it does please consider my refferal code
@ 1st way 😂, thanks for your response.
I would consider that cop as solid, but not stellar. I was hoping it would be a tad higher, but the length of the outside pipes and interior plastic microbore means in context it's ok, especially considering Octopus state the efficiency as 340%, so pretty close.
Also, at this efficiency it's a very quick return on investment given the price you paid! Bargain really. :)
Also SCOP of 340% based on 12 months I've not had it that long as weather warms SCOP will improve and in summer doing just water even better!
Our bill for November was £10 more than 2023 and December was £2 more expensive than 2023. We have a Daikin 4 kW heat pump. That is a pure price comparison, but comparing gas unit prices, 2023 to 2024. We have a gas hob so haven’t turned off the gas. Without the gas cost, we would have made a small profit. Saying that, we didn’t do it for the profit. We wanted to get rid of one more gas boiler.
Change to induction and cut all gas your thank me later
@ It is on the list.
@@bazcurtis178 speed of boiling pans of water blew me away but air in home better also
Very hard to compare your results to how things might work in a different setup. That’s no criticism of you, just that I guess you have the headroom within your battery storage to offset much of the extra energy consumption.
My limited storage is pretty maxed out ( at a little less than 5kWh) so would not have the capacity to offset much heat pump consumption, if any, during the winter months.
Would you be able to know how many kWh of electricity you actually used on your heat pump during November and that actually would give me a better starting point?
I stated heat pump units at end also in screenshot of app if that helps, but yes totally agree it’s hard to compare, with your battery being small I’d go on octopus cosy deal and charge it during every 12p window, But 5kwh too small for general use I’d look at adding around 10-20kwh to it if I was you!
Problem is, even with a battery, you are robbing Peter to pay Paul.
So Octopus Cosy would mean for ourselves paying more at peak time when cooking meals.
Simply going to sweat the Combi until / if the green energy revolution brings prices down so a HP is financially worth it
@ how you robing Peter to pay Paul cosy tariff would overall be cheaper than your gas and electricity bill
I am also on cosy tariff. There are 3 off peak periods 4-7am 1-4pm 10pm-midight. So can charge the battery 3 times a day and only ever pay off peak for any type of (non EV) use.
Cosy tariff has 3 off peaks - 8 hours off peak. The house will also the grid while the battery is charging (3 times per day). So with a 5kWh battery you can get 15kWh in the battery plus all the electricity you use from the grid in addition to the 15kWh during the charging/off peal periods. So if your house uses 1kW that's another 8kWh giving 23kWh total off peak usage.
I have a 12kWh battery and use about 20kWh/d and only ever pay for off peak .
Looking forward to my install in feb and then gas is no more late march or early april they will be back with the pw3 and 19kw of solar panels. Will the see how it goes and i might have the tank changed for a sunamp heat battery but thats some point in the future
What’s total cost? Did you add my referral? And cosy6?
My heat pump used to cost £4.80 per day, it's now costing £12.50 each day.
Wow, that’s an insane amount of money. Why don’t you go back to a boiler?
Because he’s not got a heat pump and is just trolling as if that’s true I’d be going back to installer or heat pump manufacturer and demanding a repair
It’s been proven heat pumps work but they are always reported in ideal homes with solar and batteries. How does a heat pump work in a large 4/5 bedroom family home with no solar no batteries and no EV. Because there are stacks of homes in UK that are not ideally suited to a heat pump in my opinion
Fine... its down to insulation as it runs at a lower flow temperature so you need to get heat loss of the building down to run lower and cost less than gas... they can work in homes with no insulation it will just cost more to run it or require much larger radiator upgrades... You don't need solar or a battery or ev either.. PS this is a 4 bed home
i have a similar year age house but bigger ( 4 bed detached)and we went for daikin over cosy, we got 4kw daikin and heat to 20c are November cop is 4.2, very glad i went with my gut feeliing the dakin would be more efficient
Is that combined hot water? And where in country are you it gets very cold round here. Also an on microbore with a long pipe run… can’t compare apples with pears…
Also remember I’ve been running extra hot water cycles and am running for cost not cop
@@NicolasRaimo touchy touchy, you are a big baby sometimes haha
You back again mark… after you ignored my last comment I thought your trolling days are over
My COP for November was 5.3 for heating, 5.1 combined, that's from the Vaillant app though, not a proper open source monitor. My bills were a fair bit cheaper than for gas, which is the most important thing financially, the real most important thing is the massive carbon saving.
@@marklola12 no Mark, not touchy, just trying to get the data.
Our Cosy 6 ran at 3.13 in November, but only cost £500 to install. Also we were running intermittently but at lower temperatures, so this information is important.
3.1 is a pretty rubbish COP. I'm getting nearly 3.5 right now and it's 1C outside, albeit in a properly renovated house.
Your videos are all I've really seen on the Cosy, but it's concerning that the traditional moves for improving COP like reducing the flow temperature didn't work for you.
I'm conflicted, because Octopus have designed these things to throw in at minimal expense to work Okish in poorly designed heating systems - maybe that's what the industry needs given UK housing stock and high cost barriers for installs, but relying on smart tech to compensate doesn't work in a dunkleflaute. People need heat and we need extra fossil generation capacity to power inefficient heat pumps.
I wonder if they're turning down installs for houses suited to low temperature where it's obvious that competitor pumps would be far better suited...
The entire point of this video is talking about how I’m not running this for cop, I’m running for best price which is hurting my cop score, I also have the least ideal pipe run, someone on cosy forum got there’s to over 4cop for same period. We need to ignore cop as a metric sometime and look at the true running costs
£4 per day for gas? Hitting the BULLSHIT button now!
Some days where less some more the month was about £45-£59
@@NicolasRaimo i WOULD GET YOUR METER CHECKED OUT!
@ 1st Dec. 2023 1st Jan. 2024 4436.8 Smart meter reading
4562.6 Smart meter reading
Consumption 125.8 Units (m3)
Energy Used* 1436.3 kWh @ 6.57p/kWh £94.36
Standing Charge 31 days @ 26.16p/day £8.11
Average £3.50 a day so like I said colder days £4 some days less no issue with meter
My gas costs more than £1460 a year so I must be full of bullshit too
@ he’s claiming on another post his entire gas bill is £370 a year 😂
A mouse traps only work because mice don't ask why the cheese is free . More sales con
huh? what con?
@@NicolasRaimo large upfront cost brushed over , manipulated calcs using tariffs , manipulated cop by running heating when you don't need it . Gas heating on an hour before you get home , off when you go to bed and comfortable all night . no need to account for large asset depreciation costs
@ how much is this heat pump install vs a new boiler
@@NicolasRaimo you installed a heat pump, solar panels a battery,- bought a car ... used cheap tariff to heat when you didn't need to:- see how you mis represent.
@@MegaDeano1963 what’s car got to do with it