18 Oct '16, 11am

Relative Humidity and Makeup Air at a Tight Minnesota House

Fujitsu & Mitsubishi units do not dehumidify to a humidity set point. The only mini-split on the market operating that way is the Daikin Quaternity. As far as expectations, in typical code min homes dry mode would do at least an OK job of keeping relative humidity bounded, since the sensible cooling loads are high enough that it runs all the time. Virtually ALL tight high-R homes will require mechanical dehumidification other than the air conditioning system, even more so if being ventilated at a high rate. Houses like yours are 4-sigma outliers,nowhere near the middle-of-the-market for mini splits. Equipment manufacturers are not designing to serve all conditioning needs of the few houses per 100,000 with sensible loads as low as yours into one unit. It's not the sweet spot of the market. My own home isn't nearly as tight or high-R as yours, but due to PM shading factors ...

Full article: http://www.greenbuildingadvisor.com/blogs/dept/guest-blog...

Tweets

Frank Lloyd Wright beach house listed on Airbnb for under $150 per night

Frank Lloyd Wright beach house listed on Airbnb...

inhabitat.com 18 Oct '16, 3pm

The 3,000-square-foot house located on Crystal Lake in Virginia Beach is the only Wright House with direct boating accessi...