How many kw does the Vaillant Ecotec 637 plus output to CH?

[biriyaniboy]

Hello all -

I checked Vaillant's online documentation for the Ecotec 637 plus system boiler and it says CH output is 28kw.. is it 28kw when the HW is on and 37kw if not, or just 28kw?

 

[bell824]

the 600 series produces all it can ourt it's pipes, i.e the 637 produces 37 kw!!

if it's the 800 series you mean i.e the 837 then it's 37 to hot water and 28 to heating!

 

[biriyaniboy]

Ah, deary me, I got it mixed up and read the 837 spec like a dolt - been a long day. Yes I see the 637 spec now and you're right it does the full 37kw. Quite a beast of a boiler.

 

[Agile]

Virtually all 637s installed are overspecced!

 

[Agile]

Virtually all 637s installed are overspecced!