John C. Semmelhack's Discussions (9)

Discussions Replied To (9) Replies Latest Activity

"For multi-split systems from the quality manufacturers, plan on roughly $2,500-3,000…"

John C. Semmelhack replied Feb 12, 2015 to Whole-house Ductless Mini-split install costs

6 Jun 29, 2015
Reply by Robert Bass

"Graham, The U.S. is catching up to Germany very quickly on solar installs. As of the…"

John C. Semmelhack replied Oct 23, 2014 to How does efficiency factor into a grid parity world?

5 Oct 26, 2014
Reply by Bob Blanchette

"HVAC contractor (ideally) drills the 1" hole, then tapes over afterward.  I investe…"

John C. Semmelhack replied Jan 24, 2013 to Measuring fresh air intake ducted to a return and no way of measuring from outside.

22 Feb 7, 2013
Reply by Dale Sherman

"By the way...not sure what climate you're in, but someone should probably should ins…"

John C. Semmelhack replied Jan 24, 2013 to Measuring fresh air intake ducted to a return and no way of measuring from outside.

22 Feb 7, 2013
Reply by Dale Sherman

"There are in-duct measurement techniques that are accurate enough for this purpose.…"

John C. Semmelhack replied Jan 24, 2013 to Measuring fresh air intake ducted to a return and no way of measuring from outside.

22 Feb 7, 2013
Reply by Dale Sherman

"Why are you wondering how much airflow occurs at this intake?   1) Required for Ene…"

John C. Semmelhack replied Jan 24, 2013 to Measuring fresh air intake ducted to a return and no way of measuring from outside.

22 Feb 7, 2013
Reply by Dale Sherman

"Dan,  Good to hear you're evaluating the reduced airflow form the CAR's. I'm intere…"

John C. Semmelhack replied Nov 20, 2012 to AirGenerate Heat Pump Water Heaters - any experience?

5 Nov 20, 2012
Reply by John C. Semmelhack

"Dan,  Have you measured the drop in efficiency/capacity caused by reducing the airf…"

John C. Semmelhack replied Nov 16, 2012 to AirGenerate Heat Pump Water Heaters - any experience?

5 Nov 20, 2012
Reply by John C. Semmelhack

"Yes, this can be done and is done.   Many of the ductless heat pump manufacturers ha…"

John C. Semmelhack replied Nov 10, 2011 to DHPs in MF projects

5 Nov 13, 2011
Reply by Pam Worner

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Simon joined Diane Chojnowski's group
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Online Training

Online training coursesIf you provide ongoing online training for home performance or…See More
22 hours ago
Simon added a discussion to the group Energy Auditing Equipment for Sale, Trade or to Purchase
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Wanted - Blower and door frame kit for Minneapolis system

Hi everyone,I'm new to this line of work and have bought some equipment (Minneapolis blower door…See More
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Simon replied to Steve Mann's discussion TEC Blower Door Frame in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Hi, I'm interested, but could you send to UK?,I'd pay shipping of course. My email is :-…"
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Simon replied to Jeffrey Anthony's discussion Blower Door Equipment - 9 shrouds, 10 fans, 5 fan controllers in the group Energy Auditing Equipment for Sale, Trade or to Purchase
"Hi, if you able to sell sepereately, I'd be interested in a blower and a frame kit. My only…"
yesterday
Simon 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
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Simon is now a member of Home Energy Pros
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Rob Madden, Solar Home Broker joined Leslie McDowell, BPI's group
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Building Performance Institute (BPI)

BPI is the nation's premier standards development, quality assurance and credentialing organization…See More
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Rob Madden, Solar Home Broker posted a discussion

Indoor Air Quality Monitors and Meters

I'm considering purchasing the AirAdvice for Homes indoor air quality monitor but it seems to have…See More
yesterday

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