Walter Ahlgrim
  • Male
  • Saint Louis, MO
  • United States
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Latest Activity

Walter Ahlgrim replied to Julie Saporito's discussion Heat pump failure during high heat days?
"  I am not sure how to take your questions and answers Franco. Today’s heat pumps are not what they were in the 1970s anymore! I agree back in the day 20° was a struggle. Today’s systems have variable speed compressors,…"
Nov 5
Walter Ahlgrim replied to Julie Saporito's discussion Heat pump failure during high heat days?
"Eric and David you may find this laboratory study of real world dirty AC coils brought in to the lab and studied how they worked. They tested the dirty air conditioners, then washed them thoroughly with a garden hose and tested again. They also used…"
Oct 14
Walter Ahlgrim replied to Julie Saporito's discussion Heat pump failure during high heat days?
"“The magnitude of the outside-inside delta-T has no bearing on the amount of work done by a heat pump over a given period of time. “ I disagree the inside outside delta is directly proportional to the number of BTUs required to maintain…"
Oct 2
Walter Ahlgrim replied to Julie Saporito's discussion Heat pump failure during high heat days?
"Please share this “news of failure rates tied to high heat days” Where did you get this “news” from is this data anecdotal or statistically? The cold climate heat pumps IE hyper heat models are almost two stages systems with…"
Oct 1
Walter Ahlgrim commented on David Byrnes's blog post Why Phoenix Is Called "The Land Of No Return"
"I do not understand your sizing chart you say “22” return on a 5 ton AC unit” is that a 22x22 square or 22” round or any shape with 22 square inches. I do like the…"
Jul 22
Walter Ahlgrim commented on David Byrnes's blog post Why Phoenix Is Called "The Land Of No Return"
"I do not understand your sizing chart you say “22” return on a 5 ton AC unit” is that a 22x22 square or 22” round or any shape with 22 square inches. I do like the…"
Jul 22
Walter Ahlgrim replied to Luis Hernandez's discussion Water heater ventilation question
"That black spot looks to me like someone was sloppy with their torch while working on the copper pipes and burned the PVC. The first pipe does look like CPVC I do not recall seeing CPVC listed as approved vent in any instructions. The way PVC cement…"
May 7
Walter Ahlgrim replied to Luis Hernandez's discussion Water heater ventilation question
"Read the instruction manual closely. You should find limits for the size, length and number of bends allowed. You may want to look inside the pipes, small animal have been known to crawl in and die.   Walta"
Apr 22

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Walts Repairs

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At 4:26pm on June 29, 2014, Diane Chojnowski said…

Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!

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Latest Activity

Brett Little posted an event
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All-Day LEED for Homes Workshop (Online & In-Person Options) at Grand Rapids, MI, United States

December 10, 2019 from 8:30am to 5pm
Lunch & light breakfast + coffee providedLEED certification is the most well-known green rating…See More
12 hours ago
Anna Stern posted a blog post

Sustainability & Green Building Scholarship for the 2020 International Builders' Show

Scholarship Opportunity: Do you know a young building professional or current student interested in…See More
14 hours ago
Larry Weingarten's 2 blog posts were featured
16 hours ago
Brett Little posted a video

Making the Value of Energy Efficiency Visible in Real Estate - CEUs - part1of2

Making the Value of Energy Efficiency Visible in Real Estate - CEUs - part1of2 When homeowners make improvements to their homes, the most important aspects of home performance —safety, comfort, energy efficiency, durability, and environmental impact…
18 hours ago
Diane Chojnowski posted a discussion
18 hours ago
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18 hours ago
Debra Little liked Larry Weingarten's blog post Hot Water Heaven
yesterday
Larry Weingarten commented on Larry Weingarten's blog post Hot Water Heaven
"Hi Daniel, My most basic approach to servicing tank type heaters is to check and replace the anode…"
yesterday
Daniel Cullen commented on Larry Weingarten's blog post Hot Water Heaven
"I believe that it's not too difficult to get a 25+ year service life out of a modern water…"
yesterday
Steve Schmidt commented on Larry Weingarten's blog post Hot Water Heaven
"Thanks Larry. > I'm all in favor of heat pumps as long as they are reliable and well…"
yesterday
Larry Weingarten commented on Larry Weingarten's blog post Hot Water Heaven
"Hi Steve, Good point.  This article was originally written over twenty years ago when gas was…"
yesterday

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