On Mon, 20 Feb 2006 18:09:07 +0000, Catullus wrote:

This condensing boiler is about 10 years old and we've been told by engineer
A that to repair it a new primary heat exchanger and a new secondary heat
exchanger will have to be fitted, whereas engineer B said that this boiler
doesn't even have a secondary heat exchanger. Is one of them trying to pull
a fast one?
Thanks

Servowarm tend to rebadge other makes,
very possibly a Baxi or Potterton.

Now secondary heat exchanger can mean one of two things:
Either it's the water-water heat exchanger on a combi.
Or it's a second primary heat exchanger fitted downstream (from the
flue gas point of view) usually in an attempt to uprate a boiler design to
be a condensing type. Hence the HE standing for High Efficiency?

--
Ed Sirett - Property maintainer and registered gas fitter.
The FAQ for uk.diy is at http://www.diyfaq.org.uk
Gas fitting FAQ http://www.makewrite.demon.co.uk/GasFitting.html
Sealed CH FAQ http://www.makewrite.demon.co.uk/SealedCH.html
Choosing a Boiler FAQ http://www.makewrite.demon.co.uk/BoilerChoice.html