It always amazes me when someone like yourself posts such an informative post like this. Been on a handful of manufacturers ASHP courses and they go nowhere near what i see here. Such valuable information. Thanks very much for sharing such valuable information.
Great video and great idea. I am considering doing this for my setup, however, (and correct me if I’m wrong) I have PV and batteries… wouldn’t increasing the battery capacity do the same thing as the thermal store? And it’s significantly easier for me to implement it (as I’m not a plumber). Also, the additional battery capacity can be used for any electrical load, not just heating. Thoughts?
Yes it would, but look at the hybrid inverter's output capacity. My inverter has a max of approx 3.5kw, so if your house load is more than this then you will pull from the grid. I don't know all the inverter figures off the top of my head, but I have heard some installs having two hybrid inverters which would.then allow you to have peak draw from the pack at 7kw. I've done this because I can and i have skill knowhow, the idea is I could also have wind turbine onto DC immersions. Too many ideas 😂
Thanks . How did you control the CH flow temperature when discharging from the tanks. Also isn't it better to just permanently plumb these in as a volumiser to reduce HP cycling and get an all day use out of it .
I don't get cycling as my whole system is open, I don't need a volumizer, again as the system is fully open. The store goes through a TRV capped at 32⁰ I've been installing heat pump for over 15 years.
@@allthingsrenewable9017 Thanks . Sorry perhaps for the dumb question but what do you mean by system is open ? Does your heat pump stay on all the time and just modulate down but not cut off ? That's a perfect design.
@@gopikrishnayogarajah been installing systems like this for years, even in my Gas days. No zoning, at least halfthe system open, no TRvs, no control, no zoning upstair/downstairs. Just use the heat pump as main interface using weather compensation. I have a 16kw unit which will modulate down to about 4 kW. Last few days been getting a running COP of 5-6. Power input around 650watts
It always amazes me when someone like yourself posts such an informative post like this. Been on a handful of manufacturers ASHP courses and they go nowhere near what i see here. Such valuable information. Thanks very much for sharing such valuable information.
Great video and great idea. I am considering doing this for my setup, however, (and correct me if I’m wrong) I have PV and batteries… wouldn’t increasing the battery capacity do the same thing as the thermal store? And it’s significantly easier for me to implement it (as I’m not a plumber). Also, the additional battery capacity can be used for any electrical load, not just heating. Thoughts?
Yes it would, but look at the hybrid inverter's output capacity. My inverter has a max of approx 3.5kw, so if your house load is more than this then you will pull from the grid.
I don't know all the inverter figures off the top of my head, but I have heard some installs having two hybrid inverters which would.then allow you to have peak draw from the pack at 7kw.
I've done this because I can and i have skill knowhow, the idea is I could also have wind turbine onto DC immersions.
Too many ideas 😂
Thanks . How did you control the CH flow temperature when discharging from the tanks. Also isn't it better to just permanently plumb these in as a volumiser to reduce HP cycling and get an all day use out of it .
I don't get cycling as my whole system is open, I don't need a volumizer, again as the system is fully open.
The store goes through a TRV capped at 32⁰
I've been installing heat pump for over 15 years.
@@allthingsrenewable9017 Thanks . Sorry perhaps for the dumb question but what do you mean by system is open ? Does your heat pump stay on all the time and just modulate down but not cut off ? That's a perfect design.
@@gopikrishnayogarajah been installing systems like this for years, even in my Gas days.
No zoning, at least halfthe system open, no TRvs, no control, no zoning upstair/downstairs.
Just use the heat pump as main interface using weather compensation.
I have a 16kw unit which will modulate down to about 4 kW. Last few days been getting a running COP of 5-6.
Power input around 650watts
@@allthingsrenewable9017 ok got it you are running on just weather comp which is perfect ! brilliant modulation down to 4KW on your HP. great stuff !!