Damp and extractor fans

geordiepaul2001

Hi all,

I have lived in a new build Taylor Wimpey property since July of this year. Recently we noticed that in the kitchen the wall next to the french doors was soft to touch and that damp was coming into the house.
A company came out and took the wall back to brick but could not find the issue.
Taylor Wimpey have now said that the problem was the heat exchanger and that it had stopped working.
They have set the exchanger away working again and it seems to be making the house A LOT colder.
They have also said that we need to keep the extractor fans in the en suite and downstairs toilet on permanently for the heat exchanger to work.

Does this sound correct? and should a heat exchanger be blowing in cold air?

Our kitchen has no window other than the french doors which cant be cracked open (as they are doors and not windows) and cant be left open due to the cold temperatures outside.
I am more inclined to think that an absence of a window is causing the damp.

I hope this makes sense.

Paul

geordiepaul2001

<<<bump>>>

MX5huggy

When you say heat exchanger:-
Have you got a whole house Mechanical Ventilation Heat Recovery system then?

These are complex bits of kit that need careful install and setting up to something I would expect TW to be able to do.

But then do you have simple extract fans in the bathroom.

geordiepaul2001

Thank for the reply.
It looks like I have the following system installed - http://www.nuaire.co.uk/products/catalogue/residential/positive-input-ventilation-piv/drimaster-2000/

The extractor fans are also nuaire but they are what I describe as standard ceiling mounted fans.

Paul