Ch boiler for open vented system

[derrybongo]

Hi

Can anyone recommend a ch only boiler 24kw where the owner can use the existing external pumps rather than a boiler with a built in pump (landlord trying to save money). its an open vented system in a large house

 

[Billy Bob Bob]

a baxi solo would go on the existing wiring but there a bit of a rubbish boiler

 

[doitmyself]

Broag-Remeha Avanta Range - 24v


Might be worth doing a whole house heatloss calc to make sure a 24kW is really needed. Boiler Size Calculator

 

[Toddyplumb]

I often use the Baxi Solo He

 

[tackleburger]

any heat only boiler will do it that's why they make them. No point in getting one with a dual stat on it though as you will most likely be using the one.

 

[Billy Bob Bob]

do you know its the same boiler as the baxi 100he and Barcelona? the one that breaks down a lot and melts its heat exchanger

 

[Toddyplumb]

Yeah , I had that with a 100 . But all the Solos seem ok apart from the usual red seals every now and then . I have just E mailed Baxi regarding this apparent burner fault.
If its burner replacement I will be expecting them free !

 

[derrybongo]

so the broag aventa relies entirely on your existing pumps its a heat source only ?

 

[doitmyself]

so the broag avanta relies entirely on your existing pumps its a heat source only ?

The combi and system boilers, e.g 24C and 24S have built in pumps. The heat only version, 24V uses an external pump; so you can use your existing pump.