Is a HRV the way to go?-installed/update

[bkelly]

well my HRV is in and has been running a few weeks now. Its completely dried out the house. My doors open and the windows are dry. It took a bit of work to get the in flow/out flow pipes insulated so not to leak condensate all over the wall. Were really happy with it , saved the house. I have been bleaching the mold on the ceiling spots and will re paint. It had gotten quite serious. I saved a fair bit installing it myself. All in all a really good choice.

[MarkoD]

glad to hear it worked. i achieved the same results of lower humidity by switching to LED

[KevinK]

bringing this all a bit further, whatsize do you need?

as I need to order and install one before march (to get the grant) I'm reading up a bit,

there are energy star once and gust regular, ok I se that, as the star once use less power. but in between all type of units and brands, it is a matter of CF per houre ore CF per minute.

so now wondering, how much air flow do you need for a particular house size,

would it be like 100CFM is good for 2000 sqft house, 150 CFM is for 2500 sqft house and so on and so on.

cant find this infor 1,2,3

also, would you considder to have one intake in a filter room, ore above the tank (salty air)

[mark]

Originally Posted by KevinK

so now wondering, how much air flow do you need for a particular house size,


also, would you considder to have one intake in a filter room, ore above the tank (salty air)

google "sizing HRV" or look installations manuals for either the formula based on the volume of house or the tables.

my plan is pull the stale air from high point in the house, fresh air tied into force air furnace ducting. I wouldn't pull directly from over the tank as wouldn't think the moist salt air would be to good for the HRV fan motors

[bkelly]

I took my stale from the laundry room and the room linked /beside to my tank room i was going to run more but that was enough to do the trick, i didnt balance it but its an older home so heard thats not as important in older homes due to not being totally sealed. Plus balancers are expensive and i installed myself. I got the Lennox 200 it was the higher volume one but i wanted to up and not worry, my humidity is way lower now. (below 40%), it returns into the furnace up stream of the blower , the blower is wired to the HRV to be on when its on, the air that blows is a little cool when not heated , house is a bit cooler, its only -5 to -10 out.. Ill have to run on low in the summer but this wasnt an issue in the summer , good for fresh air into the home.

[bkelly]

yes the calculators can go by sq foot or average home size base on 3-4 bdr etc. for getting an idea on size of HRV needed, mine was for a standard 3 bdrm home. although i got the size up. Got it through Coral in Kelowna. saved $1500 installing myself. Didnt go for the grants, didnt get the inspections before and after, seemed not much left after. We were in a rush to save the home from damage.

[rayjay]

In my case I spoke with the engineer for Lifebreath here in London where they are made, and he took the square footage of the house, the year it was built, extra insulation of any kind added after the build, and then wanted to know the surface area and temperature of all the open water in my house, to come up with an accurate determination.