Lifebreath has been making hrv's for 20 years and are one of the top manufacturers. I've installed lots and try to run the exhausts to the problem areas such as bathrooms and kitchens. Tough to do in a finished house. Power over passive to actively control humidity issues. And go for the 2 speed that runs low (or off depending on what is needed) and steps to high when the dehumidistat calls for it. If the exhausts are in the bathrooms, a timer switch is installed to run it when using the bathroom. Once the temp climbs in spring they are detrimental to controlling humidity, especially if you use an air conditioner.
FYI, personaly I run 150 gallons of water in a 1000 sq foot 77 bilevel in one of the coldest climates in Canada, can buy wholesale and install myself, and still cannot justify the cost to benefit for an HRV. My house sits just over 50% humidity and for a few weeks a year I cannot see out the picture window do to condensation humidity issues. I live with it. If you or your family suffers from health effects do to airquallity issues, or your humidity runs higher than what you want, your cost to benefit ratio will sway to the hrv side. I would suggest that you research how they work and understand the benefits and pitfalls of the inherent design and compare to what your expectations are. No question they are a better investment than a dehumidifier.
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