Yes, these multispeed fans have two dials behind the grille on the face of the fan. One controls the low speed and the other controls how long the fan stays on high speed before defaulting back to the original low speed. …"
I would suggest using the 130 cfm DC fan, the Panasonic FV-13VKS3, mounted in the insulated ceiling or in a thick wall (2x8 depth needed) pointed down so that the discharge could be connected to one of your existing 4x16 vertical duct…"
"It is always interesting to see how our fans are installed. This was a good install (except for the new color shingles...) - foamed edges, insulated duct, high rise roof jack, cable ties. The fans come with three spreader bars - a short…"
Yes, the Guide addresses why we need to ventilate, how much to provide, pros and cons and comparitive costs of various strategies, examples of the calculations based on both the ASHRAE 62.2-2007 adopted by California in the 2008 Title…"
"I have been asked that question since we first required house tightening and mechanical whole building exhaust in the Northwest in 1983 and I have spent the past 30 years trying to answer it. Several commentors above hit the concept right on…"
"I agree with Judy - this appears to be a mimimalist approach that does not address the building science or the intent of the EUC program. It looks to me like this approach is attempting to just tighten up enough to avoid having to add whole…"
"Seasons Greetings!! Yes, that is old data. The 15 cfm per person or 0.35ACH numbers were frrom ASHRAE Stanndard 62-1989 - 22 years ago. When we set about updating 62-89 in 1994, we realized that most of the contaminants were…"
"As discussed in other replies, ASHRAE 62.2-2010 requires 7.5 cfm per person, usually based on number of bedrooms plus 1, plus 1 cfm per 100 squiare feet of living space. So a 1,000 square foot two bedroom unit needs 7.5 X (2+1) cfm for the…"
Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding the range of strategies & tactics from which we might propose when engaging with people, the ones who choose.See More
"I recently visited some houses in Fresno that had two ducted minisplits in the hall ceiling with our WhisperComfort ERV next to the return for both of them (I am the National R&D Manager for Panasonic). The minisplits were side-by-side…"
"This has been done successfully in numerous places. Steven Winter Associates did a project in Massachusetts where there was a sealed combustion heater in the main living space and a Panasonic 80 cfm DC fan used in the living room ceiling to…"
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