Doug Krahl
  • Algonquin, IL
  • United States
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Doug Krahl's Page

Latest Activity

Doug Krahl replied to Mike Hartnett's discussion cooling vests
"Phase changing cooling vest work great, my weatherization crews wears them all the time. They work like ice packs but at 60degrees. Cool to the body but not ice cold. We keep a cooler of ice water and a 2nd cooling packs in the trucks. They last…"
May 17, 2015
Doug Krahl commented on Diane Chojnowski's group Hall of Shame
"Oops they must have run out of disposable foam can from the big box stores. Let along blower door for conformation of air seal or CAZ test."
Mar 31, 2013
Doug Krahl commented on Diane Chojnowski's group Hall of Shame
"Client had a window/weatherization company do a FREE energy audit with only a laser thermometer in their toolbox. They promised a 50% reduction in energy savings with this type of air sealing in rim joist. Did nothing with the attic or address the…"
Mar 31, 2013
Doug Krahl replied to Judi Lyall's discussion Bonus room above garage in the group Building Performance Institute (BPI)
"Air seal duct system if excisable will boost cfm/btu's. Caution with booster fans that sit on registers I've done flow hood testing and have seen a reduction in cfm's not including wasted energy/money"
Apr 21, 2011
Doug Krahl joined Diane Chojnowski's group
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Hall of Shame

In this group, members share an array of images from the field, showing the kinds of issues encountered by home performance professionals in real homes. Each tells a story of how hidden (but fixable) problems in homes can cause high energy bills.
Nov 13, 2010
Doug Krahl joined Michael Stuart's group
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INFRARED THERMOGRAPHY USERS

This group is dedicated to knowledge sharing and discussion of infrared thermography for building sciences and energy applications.See More
Nov 13, 2010
Doug Krahl joined Building Performance Institute's group
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Building Performance Institute (BPI)

BPI is the nation's premier standards development, quality assurance and credentialing organization for residential energy efficiency retrofit work.See More
Nov 13, 2010
Doug Krahl updated their profile photo
Nov 13, 2010
Doug Krahl joined Sean Lintow Sr's group
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Best Practices (Residential)

Best Building, Retrofitting, or even Auditing Practices - what are they, what should change, what needs to find it's way to the dust bin of history?See More
Nov 13, 2010
Doug Krahl is now a member of Home Energy Pros
Nov 4, 2010

Profile Information

Company
American Temperature Control
Professional Certification
BAP,EP,HVAC
Professional Interests
Home Performance
Website URL
http://americantemperaturecontrol.com
Facebook Page
American Temperature Control

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Featured Forum Discussions

Too many BTU's. Too much horsepower?

Started by Steve in General Forum. Last reply by Eric Kjelshus on Saturday. 4 Replies

Stack/wind pressure and flow networks.

Started by Daniel James Grundy in Training. Last reply by Daniel James Grundy on Thursday. 5 Replies

BDT with vermiculite in hollow CMU walls?

Started by Brad Cook in General Forum. Last reply by John Nicholas on Thursday. 2 Replies

Strange IR Image

Started by Larry Nissman in General Forum. Last reply by Brad Cook Mar 9. 7 Replies

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Latest Activity

Charles Maier is now a member of Home Energy Pros
2 hours ago
Derrick Brodanex joined allen p tanner's group
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Energy Auditing Equipment for Sale, Trade or to Purchase

Discuss the pros and cons of the equipment you are interested in prior to purchase. Post equipment…See More
22 hours ago
Eric Kjelshus replied to Steve's discussion Too many BTU's. Too much horsepower?
"Its more about run time with high RH removing, than to large over sized AC unit, in houses.  …"
Saturday
Sarah OConnell posted a blog post

Crowdsourcing for Innovation

Share Your Ideas!Novel Building Envelope Design for Increased Thermal PerformanceIn 2014, more than…See More
Friday
Colin de Paor is now a member of Home Energy Pros
Friday
Walter Ahlgrim replied to Steve's discussion Too many BTU's. Too much horsepower?
"The 5 ton system you have is not 500 hp racecar engines they are 500 hp truck engines. The duct…"
Friday
Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"So I wanted to start with a basic who can help then go into more detail later. But yes find…"
Thursday
Daniel James Grundy replied to Daniel James Grundy's discussion Stack/wind pressure and flow networks.
"My tutor got back to me and while areas don't quite feel right a little to much assumptions…"
Thursday

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