Help with humidity...

[robert]

Originally Posted by StirCrazy

ok so to show the effect heating had on relitive humidity here is an example.

the relitive humidity outside in 100 mile house is 78% at 5.5 degrees c, so if you bring that air into the house and heat it to 22 c then the relitive humidity becomes 27% so realy if you ran the fan and brought new heated air in you could drop your humidity pretty quick. the problem starts when us cheep buggers keep the house cold by dropping the temp 4 degrees to 18 we raise the relitive humidity by almost 10%

Steve

Yeah, Steve makes a good point about relationship between humidity and temperature. Go here to play In winter time, the key is pulling in plenty of fresh cold air and heat it up to higher temperature. I guess here on the west cost we can do that just by keeping window open and furnace working at the same time Yes, HVR would improve that process by using heat exchanger - using warm indoor air on its way out to heat cool outdoor incoming air.

[Doug]

Dan, I also live in a modular/mobile, {whatever a mobile is, I,m not sure}. If newer like mine, they are very well insulated and require good air exchange. I have a good whole house exchanger but certainly not efficient like the HRV units, {the only way to go}, I had in my houses.

If you notice most my recent build threads relate to this and part of the current reason I now have a small aquarium, is to keep evaporation problems to a minimum and still enjoy the hobby.

Ours was a disply when we purchased it otherwise it would have been ordered with an HRV installed. That being said, I think its hard to put one in after market, asone has not access to run vents, etc, without removing the complete underbelly insulation and protection.