Decided we needed a DVS type system preferably a balanced type as we have an airtight new house.  Got one of the big names around and was gobsmacked by the price.  More than double what I was expecting.  Cant even imagine how with the basicness of the system, you could get to that kind of price.  So am searching for a reliable but cheaper installer who can deliver a ventilation system preferably a balanced type but would consider PP as well.

Just need something that is going to do the trick.  And yes, all our windows are left on the latch, 24/7 but due to being up high we get a lot of low cloud in the winter.

Anybody, have any recommendations for someone reliable.  Was even thinking of buying a system offshore and getting someone to install it.  Don't know if this is feasible.

Thanks all.