Time to fess up.... MVHR ducting advice needed

[ragg987]

loose terminology - my apologies - i meant fibreglass insulation, have corrected my post

[Mr Punter]

Is there any mileage in having a simple heat exchanger with condense drain in the house, and the fans, controls & filters in the piggery?

[MikeSharp01]

To add to confusion, sorry Ian, but how are you dealing with the VAT on the utility room? Have you checked that anything in it will be VAT free and so will the building! From the original question point of view, why not take it head on and provide a condensate drain you can get at to clean out. Condense will happen both ends perhaps but once the system is up, running and stable it will not occur in the pipe once all the surfaces and surroundings are up to temp. If you are not careful you might be able to make the whole system into an illicit still! 

[ToughButterCup]

@MikeSharp01, I hadn't given VAT a thought. In my view it's a straight rebuild (of the Piggery), and so not reclaimable. Hadn't give  a moment's thought to the contents, though.

 

I have a condensate drain in the Piggery already, and sorting it out in the house won't be an issue. I need to get a design for the underground ducting version, and a couple of different internal designs knocked up too.