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@@DunkingJaffaCakes no, plus that's usually hot weather compensation on too

@@katieearl789 thanks Katie, ur awesome x

@@yuriflynn2477 yes put boss white either side of the washer NOT the thread

@@mrnu1147 friend bought this from Online might of been Victoria plumb?

This was over 15years ago, the FGA I mention in other vids sorry dude

Make one from larger washer or leather

@@warriorsofwarmth Thanks. ,I guess you don't know what a Supa tap washer is? I can probably bodge a new insert . But I'm trying to find a replacement first.

@@BUGGY71 it's just a normal washer

Thanks Mark

Thanks 🙏 very grateful for the feedback

Me too

Thing is it all helps achieve ur full collection

Thanks 🙏 very grateful for your feedback

😊

Some Viessmann boilers have DHW primaries so they can modulate lower for the heating and ntc modulation for the dhw demand

@@warriorsofwarmth why would it want it to modulate lower for heating surely the zero governor is in place for modulation and doesn’t it turn off automatically when it reaches temperature needed

@@UFSLDN because the boiler has tow flow temperatures

Now look at the Navien oil boiler? Completely different from competitors

Yes many use 15mm, it's only requiring a small flow rate any way

@@warriorsofwarmth That's really great, thanks Johno. What about the cold inlet and hot out, can they be 15mm ? or must they be 22?

@@robbie2awesome 22mm ideally for H & C flow rates

@@warriorsofwarmth Thank you Johno, you are a scholar and a gentleman!

This method is cheaper for plumbers who have the chemicals already

@@warriorsofwarmth Fair enough, but better results with ultrasonics & if so, less worry of problems if re used, so maybe cheaper and better in the end.

Glad I can add support

Would you recommend just using adhesive behind and no silicone ON the quadrant?

Check demand

@@warriorsofwarmth all good there, recognises demand, fires up, heat goes around Plate and down the Flow....HW is warm at best, isolate the Flow= Instantly Hot.

Look on the gas isolation valve underneath

Yeah seen that one, normally there's one on the gas valve itself, I went to a f28 fault two days ago and couldn't find the pressure point on the gas valve to see if it was opening up

Temperature sensor? Maybe no airlock too?

@@warriorsofwarmthThank you for your answer. shall I switch the boiler off and check if that help? Or it won't change anything and I should call engineer? Anything else what I could try on my own?

@@karolinalilith7273 yes u should really

Sorry not an engineer. Thought in case a settings fault.

Could be the diverter valve or nondemand

All of them, should offer it

Wish I had a career working in power plants, domestic is hassle!

I've seem more of these controllers in plant rooms than when on my fgas and air source heat pump course. Maybe the course I went on was bad😂. Seem similar controllers on pumps and pressurisation units. There's some free air source heat pump courses. As for fgas the best priced one I've seen is in potters bar. Ellis training.

Thanks I appreciate ur feedback

Sorry it took so long been a tough week

@@warriorsofwarmth Johno what does the outcome of 1.89 litres refer to? Is it the capacity that the system needs in order to maintain a delta T of 20 C or something else, please forgive my ignorance, your fan Roo

That figure will help u select a LLH

@@warriorsofwarmth I can see they are all rated just like boilers, some listing the maximum flow rate and others listing the pipe size. Its relatively simple now, I need 1" pipe size and at least 45Kw with a max flow rate around 1.89 L/min, thanks man!

Did u dry the surface?

Thanks dude! Hope u passed

Read the MI ? Stroll through fault finding chart, could be the supply tube or tap

@@warriorsofwarmthok it works but very very faint fire very weak

Thanks Paul I appreciate ur feedback

What size kw boiler? Boiler flow and return temperature please?

boiler is Vaillant light commercial, 44 Kw , S-pan, unvented cylinder and rads, lots of rads. Design temp delta t is 20 Celsius. It has an internal pump and an external more powerful pump that the householder installed in an attempt to overcome the resistance to the heating circuit. Vaillant propose hydrolic seperation i.e a low loss header. Thanks so much for taking the time Johno.

What's ur flow and return temp

@@warriorsofwarmth 70-50

Tomorrow I'll make a video

Thanks I really appreciate it

Thanks for the great feedback enjoy the rest of ur week

Thanks for the feedback

When is your course? Are u doing Fgas or heat pump course?

Where are u based z?

The land of the free and the home of the brave, Glasgow, Scotland :D@@warriorsofwarmth

I could do both, but probably will do Heat pump course first. Will do it where i did my core gas and ACS, Clyde College, Glasgow.@@warriorsofwarmth

I have an apprentice, he's in his third year at Forth Valley College and he's always going on about emerging technology and telling me to do a heat pump installers course. I thought you might have some vids on whats involved. There are other ones on the internet but I canny trust them like i can trust you. If you have the time and inclination Johno, please make a heat pump installation vid, your fan Roo.

Hope ur both well

The burner seal has been up graded

@@warriorsofwarmth Thx. I am aware of that from red to black in colour. But the burner now has a new part number. Are you saying there is no change with the burner, being the same old early failure job?