Bob Blanchette's Discussions (462)

Discussions Replied To (26) Replies Latest Activity

"Why use insulated flex if the return duct is in conditioned space? You could have us…"

Bob Blanchette replied Dec 14 to Floor level return added to attic ductwork.

1 Dec 14
Reply by Bob Blanchette

"+1 on the typical GROSS oversizing of furnaces. A "2 burner" (typically 50k or small…"

Bob Blanchette replied Nov 6 to Furnace with ECM: How to Model

5 Nov 13
Reply by Ryan Schmidt

"There's more to it than that. The blower efficiency gain comes using an ECM for low…"

Bob Blanchette replied Nov 4 to Furnace with ECM: How to Model

5 Nov 13
Reply by Ryan Schmidt

"Amen. Limiting size per sqft would be more effective IMHO. It would have to be insta…"

Bob Blanchette replied Aug 15 to ENERGY STAR Furnaces & Failure of DOE Standard

7 Aug 15
Reply by Bob Blanchette

"Motor efficiency could be improved 25% by using a single speed PSC motor instead of…"

Bob Blanchette replied Aug 12 to ENERGY STAR Furnaces & Failure of DOE Standard

7 Aug 15
Reply by Bob Blanchette

"But it's so much easier to size by the 500sqft per ton rule that's been used for dec…"

Bob Blanchette replied Jul 4 to Are Zoned Heating/Cooling Systems a Good or Bad Idea?

24 Jul 5
Reply by John Proctor

"This is exactly why oversizing continues, nobody is willing to stick their neck out.…"

Bob Blanchette replied May 5 to How to Read Load Calculation Reports

37 May 5
Reply by Bob Blanchette

"90% of residential installs are done by the WAG or rule of thumb methods. 500sqft pe…"

Bob Blanchette replied May 3 to How to Read Load Calculation Reports

37 May 5
Reply by Bob Blanchette

"60k is INPUT of your furnace right? If it's a typical 80% that would give you a 48k…"

Bob Blanchette replied May 3 to How to Read Load Calculation Reports

37 May 5
Reply by Bob Blanchette

"He's not going to want to "break the norm" of the 50btu per sqft he's been installin…"

Bob Blanchette replied Apr 27 to How to Read Load Calculation Reports

37 May 5
Reply by Bob Blanchette

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yesterday
Dennis Heidner commented on Dale Stephens's blog post LED Lighting 24-month update 18,240 hours & counting
"Dale, good write up. For the landscaping bulbs,  if they had been T3 12V wedge bulbs,  I…"
yesterday
Brett Little commented on Tom White's video
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The Future of Housing - And How Airtightness Can Help

"It's very true! So many people and contractors have tons of insulated attics but no air seal…"
Thursday
Chris Leach replied to Richard Beyer's discussion "The Dangers of Using Spray Foam Insulation"
"The problems will surface soon enough . Why don't we take a second look at this over rated…"
Thursday
Don Fitchett commented on Tom White's video
Thursday
tedkidd replied to Bob Blanchette's discussion How does Cycles Per Hour affect real world AFUE?
"Want to spot a simpleton? It's a guy who thinks EE and comfort are disconnected.  Want…"
Thursday
tedkidd commented on Tom White's blog post Clean Energy Works Oregon: Total Home Performance
"Nice post Tom! I really like how he puts that. Leveraging interests so they can optimize…"
Thursday
Kent Mitchell commented on Tom White's blog post Clean Energy Works Oregon: Total Home Performance
"As a contractor in the region - we frequently wonder how/why you can be a non-profit?  Oregon…"
Thursday

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