RE: Air Exchangers

[Guest guest]

Barb

All of the major manufacturers make a quality line and a builder's model; the latter are minimum first cost and maximum total cost.

None, however, would have the gall to advertize a 95% efficiency; that is quite impossible. I suggest that many of the other claims on this manufacturer's site are as about as factual as that statement. See Bob Brady's article on the death of FACTS.

Get a copy of CMHC's About Your House free article on choosing an HRV. It has some helpful information and advice. Only those HRVs or ERVs that have HVI certification should be used. Note that many of the names/brands are for units that are made by one of three or four manufacturers.

As said in the About Your House document, it is often best to choose a unit according to your trust of the local installer; HRVs and ERVs require competent installation and service.

I seriously doubt that you live in a climate where an ERV is warranted. They are more complex and are often more leaky between incoming fresh air and outgoing stale air. You certainly will need a quality dehumidifier, to work with the HRV, because only a few locations in the whole North American continent do not need one for a Healthy Home.

Jim H. White SSC

Air Exchangers

Looks like a good quality Air exchanger. Is there an air exchanger that is considered best?http://www.ultimateair.com/products/standard-features/

[Guest guest]

Please see: http://www.healthyhouseinstitute.com/searches.php?query_string=hvi & x=0 & y=0Also: http://www.hvi.org/ P. Rathey, PresidentThe Healthy House Institute®13998 West Hartford Dr.Boise, ID USA 83713Voice Fax Mobile Web: www.HealthyHouseInstitute.comAbout Us: The Healthy House Institute Media Mentions CDC, WebMD, New York Times The Healthy House Institute® (HHI) provides consumers information to make their homes healthier. HHI strives to be the most comprehensive educational resource available for creating healthier homes. From: iequality [mailto:iequality ] On Behalf Of barb b wSent: Saturday, April 21, 2012 1:14 PMTo: iequality Subject: Air Exchangers Looks like a good quality Air exchanger. Is there an air exchanger that is considered best?http://www.ultimateair.com/products/standard-features/

[Guest guest]

The HRV where I live broke down recently and needs to be replaced. I think what

hastened the demise of the original HRV is that the area is often full of

laundry product fumes so I've had to turn off the HRV when this happens in order

to avoid it sucking in all those fumes.

What didn't help is that the model does not have carbon filters. I'd looked into

finding some (4x12x24) and they aren't available except as custom orders from

NEEDS for over $50 a piece...

I wonder

1. if you are aware of which units might be designed to be turned on and off

more frequently due to outdoor air quality issues.

and

2. if there is anyone who makes carbon filters that size (4x12x24) (it's not

very likely the ductwork will be changed out, it's not in the same location as

the machine part). Currently it uses a pleated MERV 13 that gets changed every 3

months. I'm not sure how much a carbon filter will actually remove of the

laundry chemicals, but I think it would be more than the one that's there now,

so perhaps I wouldn't have to shut the whole unit down as often.

I'm in the Ottawa area if that makes any difference.

Kind regards,

linda sepp

>

> Barb

> All of the major manufacturers make a quality line and a builder's model; the

latter are minimum first cost and maximum total cost.

>

> ...