Does a new Boiler Need a new Pump?


Postby ae6007 » Mon Feb 04, 2019 6:34 pm

Hello. I’m about to replace my old condensing boiler (circa 20 years old!). Should we also look to replace the central heating pump in our airing cupboard? Will a new boiler run ok on an old pump? It seems to work ok but is very noisy. Thank you!
ae6007
Rank: Labourer
Progress to next rank:
0%
Posts: 1
Joined: Mon Feb 04, 2019 6:25 pm

Sponsor

Simply Build It

Postby ericmark » Mon Feb 04, 2019 9:35 pm

In the main the pump, by-pass valve and heat exchanger are all built into the boiler.

Oil and solid fuel are different to gas, but don't think oil and solid fuel had condensing boilers 20 years ago, so assume gas.

So first thing is to consider how the central heating works, in order to get the moisture in the flue gases to condense you have to limit the temperature of the return water, to do that, it has to modulate (turn down output) so in turn all the controls have to also turn up and down not off/on.
ericmark
Rank: Project Manager
Posts: 2014
Joined: Fri Oct 02, 2009 8:49 pm
Location: Mold, North Wales.

Display posts from previous
Sort by
Order by



  • DIY How to Project Guides

  • DIY how to tutorial projects and guides - Did you know we have a DIY Projects section? Well, if no, then we certainly do! Within this area of our site have literally hundreds of how-to guides and tutorials that cover a huge range of home improvement tasks. Each page also comes with pictures and a video to make completing those jobs even easier!



 


  • Related Topics