Replacing extractor with heat recovery

[chuckalicious]

Following on from my thread here http://www.diynot.com/diy/threads/room-not-heating-as-expected.469273/page-2#post-3759910

I have a new utility room which we have struggled to heat sufficiently but now seem to be there after a few changes of radiators. The utility has an extractor which runs at either 30 or 60l (whichever is the correct reg). I am a bit loathed to be pumping out all the heated air - it just seems like a very inefficient way to do things.

Can anyone recommend a replacement (fits the hole and is wall mounted) that has some form of heat recovery, a humidistat and maybe a trickle function? I've looked online but there are so many options I'm not sure what to go for.

Thanks.

 

[oilboffin]

Some years ago wikes did one a mate of mine put one in for a customer and he rated it,he said it was easy to put in worked first time customer loved it.

 

[chuckalicious]

Just found this. Fits the bill perfectly. Minus the cost...

http://www.extractorfanworld.co.uk/...t-4-single-room-heat-recovery-unit-3217-p.asp

 

[Agile]

None of those kind of unit recovers much heat at all.

To do so required a big heat exchanger which needs a loft space.

Some of those being sold are so plainly not going to extract much power but some people still buy them.

That one above cannot recover much heat at all.

The price is also about 20 times what it needs to be!

Tony

 

[endecotp]

These things make sense in arctic Canada where the temperature difference is 20C.
Is your extractor running continuously?

 

[Mikefromlondon]

How many years would it take you to recover your outlay of £334.00 back and start saving on heat losses? and when you have made it even or perhaps even before that, you may need to replace it as it may well have packed in. It is just a gimmick as Tony said hardly going to be useful in saving heat for that price.

 

[chuckalicious]

Don't worry, I wasn't planning on buying it! Not at that price.

The fan isn't running continuously, I'm just trying to get a balance between a reasonable temperature in the room and adequate ventilation for an area for drying clothes. I was wondering if a trickle on constantly would be better heat wise than a full blown fan being on when humidity reaches a certain level.

 

[endecotp]

I was wondering if a trickle on constantly would be better heat wise than a full blown fan being on when humidity reaches a certain level.

Some humidistat fans adjust their speed over a range as the humidity gets closer to their humidity threshold, which you might consider the best of both worlds.