David Berg
  • North Wales, PA
  • United States
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David Berg replied to Patrick Michaelyan's discussion Insulating the "walls" of a mansard-style roof.
"If the sheathing is being removed, then installing a layer of rigid foam under new sheathing is appropriate.  There should be a non condensing insulation layer adjacent to the "roof" sheathing.  In the DC climate zone this is…"
Dec 5, 2013
David Berg replied to Mike Kandel's discussion BPI's October Stump the Chump! in the group Building Performance Institute (BPI)
"looking at the information provided: 1 - is the system a multistage unit to better match load as well as zoning demands. 2 - is the heating capacity properly matched to to home demand - does the backup heat run? 3 - is the cooling capacity too large…"
Oct 26, 2012
David Berg joined Leslie McDowell, BPI's group

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
Oct 26, 2012
David Berg replied to Bob Blanchette's discussion Cooling blower off delay vs. Humidity
"Good question. According to the technical documents the humidistat can be wired in and call for cooling operation with the the blower operation profile that is setup on the dip switches. "
Jun 29, 2012
David Berg replied to Bob Blanchette's discussion Cooling blower off delay vs. Humidity
"This unit is a TRANE UY120R9V5V gas furnace installed with a 5 ton Trane coil and 4 ton Trane compressor."
Jun 29, 2012
David Berg replied to Bob Blanchette's discussion Cooling blower off delay vs. Humidity
"My home also has variable speed blower and a special blower setting to maximize system performance and moisture extraction.  I have attached an extraction from the air handler documentation showing how the blower operation can be moderated.…"
Jun 29, 2012
David Berg replied to Bob Blanchette's discussion Cooling blower off delay vs. Humidity
"Some manufacturers have a ramp down and in some cases a ramp up fan behavior (variable speed blowers) that run at lower speeds for a few minutes at the end and beginning of the cooling cycle to extract more moisture from the air stream.  This…"
Jun 28, 2012

David Berg just added their location.
(via Member Map)

Mar 26, 2012
David Berg commented on Ed Voytovich's blog post NOx NOx "Who's There?"
"In my Testo 327-2 analyzer, there is a NO filter that removes the NO before the CO sensor.  It is one of the maintenance items that has to be replaced when the absorbing chemical is consumed.  Are you concerned about the CO readings or the…"
Mar 26, 2012
David Berg updated their profile photo
Dec 16, 2010
David Berg is now a member of Home Energy Pros
Nov 30, 2010

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DSB Energy Services
Professional Certification
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Latest Activity

Bob Mariani replied to Alan Gindt's discussion Minneapolis Blower Door System for sale in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Is this still available?"
54 minutes ago
Profile IconWilliam Smith and Juan Jose Palacios joined Home Energy Pros
7 hours ago
Eric Kjelshus replied to John Gillis's discussion Energy Savings of Whole House Fans vs. Air Conditioners in SoCal Featured on New 'Ask This Old House' Season in the group News & Announcements
"2000 SF house in Kansas City needs a 36" whole house fan or about 8,000 CFM takes a 1/4 HP fan…"
9 hours ago
Eric Kjelshus joined Diane Chojnowski's group

News & Announcements

Share your news and announcements with the community in this group.See More
9 hours ago
Eric Kjelshus replied to David Byrnes's discussion Insulation machine preferences
"If you find over heating look at voltage/amp draw very hard.    I find if you have…"
9 hours ago
Colin Genge posted events
11 hours ago
Adrienne DeAngelo posted an event

GreenPoint Rated CORE Training at Best Western Plus Marina Shores Hotel

October 15, 2015 to October 17, 2015
Increase your certifications or get to know the GreenPoint Rated system so that you can work more…See More
12 hours ago
Colin Genge replied to John Carton's discussion Smoke Puffer stick
"Retrotec Smoke Puffer is available for pickup from Energy Federation. They will not ship them due…"
12 hours ago

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