Bob Blanchette's Discussions (425)

Discussions Replied To (23) Replies Latest Activity

"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

"80k x 96.2% = 77k output. No need for a 100k furnace. Oversizing will render the pur…"

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

37 May 5
Reply by Bob Blanchette

"7 degrees outdoor, 72 indoor are design temps, looks reasonable. 80% furnace would m…"

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

37 May 5
Reply by Bob Blanchette

"There should be defined indoor and outdoor temperatures that the load calculation is…"

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

37 May 5
Reply by Bob Blanchette

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Hal Skinner replied to Hal Skinner's discussion How much heat energy is lost through the floor of a house?
"I found the buildingscience article interesting.  Interesting that they noted the wet bottom…"
10 hours ago
Bud Poll replied to Hal Skinner's discussion How much heat energy is lost through the floor of a house?
"With conduction that ends at the bottom of the joists and convection that is naturally suppressed…"
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Hal Skinner replied to Hal Skinner's discussion How much heat energy is lost through the floor of a house?
"Good morning Bud, Took a quick look at the site and a couple others listed on the Yahoo…"
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Bud Poll replied to Hal Skinner's discussion How much heat energy is lost through the floor of a house?
"Hi Hal, Search "Basecalc basement heat loss".  From memory Canada (nrcan) has/had a…"
15 hours ago
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Hal Skinner replied to Hal Skinner's discussion How much heat energy is lost through the floor of a house?
"II just remembered seeing a report by a federal adency, many years ago, that basically said …"
yesterday
Don Fitchett commented on Tom White's video
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Alliant Energy's PowerHouse TV: Sealing Leaky Ductwork

"Very educational. thanks for sharing Tom."
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Hal Skinner posted a discussion

How much heat energy is lost through the floor of a house?

I am asking this as I do not recall anyone speaking of any study to this end.  Many comments about…See More
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