Hot water allowance

[Destroyer2813]

Trying to work hot what pspare btus a system has calculated up the rads and trying to work out hot water 36x18 cylinder normally work on 10000 as what i was taught anybody got any other thoughts on a hot water figure

 

[tamz]

2.2 kw for up to 130 litre

 

[Destroyer2813]

Why thank you Tamz answering my questions again should be able to upgrade couple of rads he wants, one more got a few old single panels but no-one lists em anymore for output any ideas

 

[Mike Jackson]

I just use nearest size P1 to guesstimate output. If it's a double panel double ouput from single panel.