Walter Ahlgrim's Discussions (17)

Discussions Replied To (17) Replies Latest Activity

"Eric and David you may find this laboratory study of real world dirty AC coils broug…"

Walter Ahlgrim replied Oct 14, 2019 to Heat pump failure during high heat days?

14 Oct 15, 2019
Reply by Kent Browning

"“The magnitude of the outside-inside delta-T has no bearing on the amount of work do…"

Walter Ahlgrim replied Oct 2, 2019 to Heat pump failure during high heat days?

14 Oct 15, 2019
Reply by Kent Browning

"Please share this “news of failure rates tied to high heat days” Where did you get t…"

Walter Ahlgrim replied Oct 1, 2019 to Heat pump failure during high heat days?

14 Oct 15, 2019
Reply by Kent Browning

"That black spot looks to me like someone was sloppy with their torch while working o…"

Walter Ahlgrim replied May 7, 2019 to Water heater ventilation question

24 Aug 3, 2019
Reply by Minnie Coleman

"Read the instruction manual closely. You should find limits for the size, length and…"

Walter Ahlgrim replied Apr 22, 2019 to Water heater ventilation question

24 Aug 3, 2019
Reply by Minnie Coleman

"Being a Flip you must consider the install cost. At least get a bid for a PTAC unit…"

Walter Ahlgrim replied Sep 24, 2018 to Mini split installation location

15 Oct 3, 2019
Reply by Allan P Fisher

"This is one of thouse topic where you ask 10 people and get 12 different opinions. I…"

Walter Ahlgrim replied Sep 17, 2018 to Mini split air conditioners and ceiling fans

17 Jul 5, 2019
Reply by tedkidd

"It seems the question was asked in Nov of 2013 maybe the OP will reply and tell us h…"

Walter Ahlgrim replied Aug 31, 2018 to Is my HVAC Guy correct? 2 systems instead of 1 system with dampers

57 Aug 31, 2018
Reply by Walter Ahlgrim

"Last year we build a new home the HVAC seemed to work perfectly after a full season…"

Walter Ahlgrim replied Aug 31, 2018 to Stud cavity air returns

17 Aug 31, 2018
Reply by Bob Ellenberg

"Do not be fooled it is very common problem for cast iron wood working equipment to s…"

Walter Ahlgrim replied Mar 17, 2018 to Condensation on an interior wall of a detached garage.

15 Mar 17, 2018
Reply by Walter Ahlgrim

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Forum

Insulating Chilled/Cold Water Lines

Started by Sean Wiens in HVAC. Last reply by Sean Wiens yesterday. 10 Replies

Floor I joists and properly installed insulation

Started by Robin Henry in General Forum. Last reply by Brian Robinson on Thursday. 29 Replies

What's the Most Profitable HVAC Job for Your Company?

Started by Wayne Melancon in HVAC. Last reply by bebelyn accessdoors on Thursday. 5 Replies

Looking for a Rater in Sacramento Area

Started by Brian A McFadden in BPI. Last reply by Building Performance Institute Jan 14. 1 Reply

Hydronic System Critique

Started by Sean Wiens in HVAC. Last reply by Sean Wiens Jan 14. 8 Replies

Condensation Quick Fix

Started by Dan Antonioli in General Forum. Last reply by Sean Wiens Jan 13. 12 Replies

How many BTU required to heat air

Started by Sean Wiens in HVAC. Last reply by Sean Wiens Jan 9. 28 Replies

Denver Home Energy Score Pilot Evaluation Report

Started by Julie Saporito in General Forum. Last reply by Jacob Corvidae Jan 9. 8 Replies

Green Button Connect

Started by Rob Buchanan in General Forum. Last reply by Steve Schmidt Jan 6. 3 Replies

Latest Activity

Building Performance Journal posted a blog post

Dust-Control Strategies for Energy Upgrades

In the Winter 2019 issue (our last under the Home Energy name), author Cory Chovanec wrote an…See More
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Macie Melendez posted a blog post

Re-introducing Myself as the Building Performance Journal’s Managing Editor

I worked on the editorial staff of Home Energy magazine for nearly 7 years before I made the…See More
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Diane Chojnowski added a discussion to the group News & Announcements
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Luis Hernandez replied to Al Tibbs's discussion Energy Audit Book & Equipment in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Just resend it again just now. Please check your spam folder"
16 hours ago
Jose Macho commented on Chris Laumer-Giddens's blog post Near Perfect Air Tightness Measured in Contemporary Home
"My thinking is zip strip sheathing & tape would have been more cost effective which I have seen…"
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Al Tibbs replied to Al Tibbs's discussion Energy Audit Book & Equipment in the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Sean Wiens replied to Sean Wiens's discussion Insulating Chilled/Cold Water Lines
"Just a follow up to Mark's post "cold waterlines in this space wont be exposed to outside…"
yesterday
Sean Wiens replied to Sean Wiens's discussion Insulating Chilled/Cold Water Lines
":-) - Guess I should not read so literal! That makes more sense."
yesterday
Building Performance Institute liked Kirsten Richnavsky's discussion New BPI Standard for Conducting Energy Audits Published as an ANSI Standard!
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Building Performance Institute liked Kirsten Richnavsky's discussion Breaking the link between unhealthy homes and unhealthy kids
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