Bob Blanchette's Discussions (451)

Discussions Replied To (26) Replies Latest Activity

"About 250 pascals in 1" of water column. HVAC filter operation at a typical 0.1" @ 1…"

Bob Blanchette replied Jan 22, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"We're talking about the surface same area as two 20x20 HVAC filters. 360CFM through…"

Bob Blanchette replied Jan 22, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"The 12" aluminum externally braced whirlybirds go for about $50 each, not unreasonab…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"Fair enough. Air will exit ridge vents, but at an insignificant rate. There is simpl…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"According to your formula, how hot does it have to be in a standard 8' tall attic in…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"If you must have the ridge vents installed, take a CLOSE look on how it's constructe…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"If homeowners aren't willing to have whirlybirds installed, large "turtle vents" can…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"I don't think powered fans make sense for Northern climates. Even in southern climat…"

Bob Blanchette replied Jan 5, 2013 to Ridge Vent NFA

15 Jan 5, 2013
Reply by Bob Blanchette

"The tiny pressures aren't enough for the ridge venting to work, it simply doesn't. T…"

Bob Blanchette replied Jan 5, 2013 to Attic ventilation with mixed soffit heights.

34 Apr 17, 2013
Reply by Bud Poll

"Another problem with NFA is is doesn't calculate the static pressure loss created by…"

Bob Blanchette replied Jan 5, 2013 to Ridge Vent NFA

15 Jan 5, 2013
Reply by Bob Blanchette

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"In my observation, In most of the lightning appliances led bulbs are used because of their…"
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Bob Blanchette commented on Jeremy Begley's blog post The Home Envelope : Does it Really Matter in a Heat Loss Calculation
"Infiltration makes a HUGE difference. Look at the heat loads on a windy day vs. a calm one. On a…"
13 hours ago
Bob Blanchette commented on Everblue's blog post Poor HVAC Installation Leads to Increased Energy Use
"That explains a LOT of why HVAC system continue to be sized by the same "rule of thumb"…"
14 hours ago
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