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What's the Best Way to Control Indoor-Air Quality and Humidity in a House?

comments (1) September 23rd, 2010 in Blogs

Official Fine Homebuilding Post, editor

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Choosing the right whole-house ventilator

The tighter the house, the greater the need for whole-house ventilation. Few energy efficient builders would bother arguing the point.

Among the best options are heat-recovery and energy-recovery ventilators, similar but not identical devices that are both designed to reduce the energy penalty of bringing fresh air inside. ERVs are typically recommended for hot and humid climates where air conditioning is a must, but is that always the case?

That question is the focus of this week’s Q&A Spotlight. Donald Lintner is building a super-insulated house in upper Michigan. He won’t be installing central air conditioning, but he does want whole-house ventilation and hears conflicting advice on whether an HRV or an ERV is the best choice.

Either will work, GBA senior editor Martin Holladay tells him, but ERVs are essentially useless when it comes to lowering indoor humidity. Not so, a poster replies. You’ve got it all wrong.

Read the full article and join the conversation at Green Building Advisor

Further Resources

High performance HVAC systems

Will a rooftop fan cure a stuffy upstairs?

posted in: Blogs, energy efficiency, green building, hvac

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Comments (1)

RoMarSer writes: On a recommendation of a friend I bought a Ridgid portable saw stand, we both love the ease with it collapses and its vertical storage. It has big wheels to get through job sites and grass easily The slide out supports have legs so they can hold a 2x6 with out flexing, but the screw handles are made of cheep pot metal that break and the last time ether of us ordered them we were told that we would have to buy them (not cool).
Posted: 6:25 pm on October 12th

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