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

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
Walter Ahlgrim replied to Jan Green's discussion Mini split installation location
"Being a Flip you must consider the install cost. At least get a bid for a PTAC unit like the ones found in most hotel rooms. With either choice I would put it on the long wall so it is closer to the center of the room. If the unit is mostly for…"
Sep 24, 2018
Walter Ahlgrim replied to Beverly Lerch's discussion Mini split air conditioners and ceiling fans
"This is one of thouse topic where you ask 10 people and get 12 different opinions. I will give you 5. :) There is no clearly right answer. Some if this depends on who you are where your house is and what type of house it is. In my opinion if you…"
Sep 17, 2018
Walter Ahlgrim replied to scottscontracting's discussion Is my HVAC Guy correct? 2 systems instead of 1 system with dampers
"It seems the question was asked in Nov of 2013 maybe the OP will reply and tell us how the system has worked for the last 4.5 years.  Walta"
Aug 31, 2018
Walter Ahlgrim replied to Paul Raymer's discussion Stud cavity air returns
"Last year we build a new home the HVAC seemed to work perfectly after a full season of both heating and cooling I happened to notice the contractor had forgotten to pan one end of a floor joist bay being used an the main return duct. I tested the…"
Aug 31, 2018
Walter Ahlgrim replied to Pamela Brown's discussion Condensation on an interior wall of a detached garage.
"Do not be fooled it is very common problem for cast iron wood working equipment to sweat and rust if keep in  a unheated garages when the weather changes quickly from cold to warm and damp. Now wet drywall is very strange. To me drywall does…"
Mar 17, 2018
Walter Ahlgrim commented on Efficiency First California's blog post Get Fire Out Of Our Buildings
" “From an efficiency standpoint electricity is a clear winner.” Baloney not when you count the losses at the power plants most plants are 45% efficient and you lose another 7% in distribution and transmion.  The very best solar…"
Mar 10, 2018
Walter Ahlgrim commented on Efficiency First California's blog post Get Fire Out Of Our Buildings
"Let’s be honest Electric is not an energy source! There are no electric mines, wells or fields. What electric is a convenient way to move other forms of energy and use it in our homes. Electric maybe very efficient from the meter on the side…"
Mar 8, 2018

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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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Forum Discussions


Started by Danny Gough in HVAC. Last reply by Danny Gough on Saturday. 12 Replies

How to Insulate Exposed Outdoor Ductwork?? Help

Started by Daniel Baur-McGuire in General Forum. Last reply by Bradford E. White on Friday. 7 Replies

Where to spend my marketing dollars?

Started by Trip Smith in Marketing. Last reply by Building Performance Institute on Tuesday. 10 Replies

Easy Tests for HVAC during audit

Started by Craig Bird in Weatherization. Last reply by John White May 9. 19 Replies

Water heater ventilation question

Started by Luis Hernandez in General Forum. Last reply by Dennis Heidner May 8. 23 Replies

Polar vortex photos of ice forming INSIDE homes!

Started by Diane Chojnowski in General Forum. Last reply by Michael Cuomo May 4. 1 Reply

LEED for Homes Green Rater Training

Started by Ryan Moore in Training. Last reply by Michael Cuomo May 3. 1 Reply

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Enervest Solar is now a member of Home Energy Pros Forum
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Dennis Heidner replied to John S. Rodenhizer's discussion Using radiant barriers as duct insulation, Aka "Bubble wrap" What value do you assign for R-value?
"Read the manufacturers claims and installation steps closely  The foil needs a dead…"
9 hours ago
Danny Gough replied to Danny Gough's discussion REALLY????
"As I have read through everyone's excelent responses, it has caused me to reassess my…"
Tim O'Brien replied to Danny Gough's discussion REALLY????
"Bradford - I have seen single family homes with ducted central AC or heat pump hold enough water…"
Brett Little posted an event

How to Make Money by Cutting Your Home's Carbon Footprint, Heating Bill, and Electricity Bill to Zero - Free CE Webinar at Webinar Online

June 12, 2019 from 12pm to 1:15pm
How to make money by cutting your home's carbon footprint, heating bill and electricity bill to…See More
Emily Ambrose posted a blog post
Building Performance Institute commented on Emily Ambrose's blog post 4 Signs Your Website Is In Need of A Refresh
"Excellent food for thought! Thank you!"

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