John C. Semmelhack's Discussions (17)

Discussions Replied To (15) Replies Latest Activity

"Mitsubishi has a refrigerant-to-water heat exchanger in their City-multi VRF lineup,…"

John C. Semmelhack replied Jun 13 to GSHP for domestic hot water

4 Jun 28
Reply by Eric Kjelshus

"I agree with David Butler...it really depends on the inputs into the model as well a…"

John C. Semmelhack replied May 19 to HERS score with HRV

9 Jun 7
Reply by Nicholas Burger

"From the article: "Lynae Forbes, president and principal broker at Hasson Company Re…"

John C. Semmelhack replied May 10 to Portland home energy scores not so hot

4 May 10
Reply by tedkidd

"I agree with David. All of the tightest houses I've tested have used Therma-tru door…"

John C. Semmelhack replied May 2 to Fire Rated High Performance Doors

3 May 2
Reply by John C. Semmelhack

"I've tried out most of the available residential energy monitors over the years and…"

John C. Semmelhack replied Jan 9 to Experience with new energy monitoring tools such as Curb, Sense, Nerio and Smapee

23 May 16
Reply by Tom Roth

"https://retrotec.com/products/flow-finder-mk-2-best-powered-flow-hood "

John C. Semmelhack replied Oct 24, 2017 to Replacement for Energy Conservatory Flow-blaster

1 Oct 24, 2017
Reply by John C. Semmelhack

"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

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Forum Discussions

VERY TIGHT HOME WITH OVER SIZED AC

Started by Jerry Needham in BPI. Last reply by Dave Taylor 8 hours ago. 6 Replies

Mini split air conditioners and ceiling fans

Started by Beverly Lerch in General Forum. Last reply by Daniel Baur-McGuire on Monday. 4 Replies

DIY Filter Solution for an Evaporative Cooler, anyone?

Started by Leslie Jackson in HVAC. Last reply by Daniel Baur-McGuire on Monday. 6 Replies

Apply now for the Jon Siemen Memorial Scholarship!

Started by Diane Chojnowski in General Forum. Last reply by Quinn Korzeniecki Aug 9. 1 Reply

Latest Activity

Sam Feder liked Dav Camras's discussion Adding blown insulation to poorly installed batts?
7 hours ago
Chris Stratton liked Don Fugler's discussion Choosing a range hood
8 hours ago
Dave Taylor replied to Jerry Needham's discussion VERY TIGHT HOME WITH OVER SIZED AC
"Jerry, you should look at Buildingscience.com" High Mass Walls" 105 paper for more…"
8 hours ago
Jill Lindman's 3 events were featured
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Diane Chojnowski posted videos
11 hours ago
Don Fugler replied to Don Fugler's discussion Choosing a range hood in the group Kitchen Ventilation
"Has anyone installed a range hood in an older home with the ducting down to the basement and out…"
13 hours ago
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13 hours ago
Brian Robinson replied to Dav Camras's discussion Adding blown insulation to poorly installed batts?
"YES, YES, & YES!!! Bat droppings, mouse droppings, dead mice, nuts, seeds, acorns, lack of…"
yesterday
Matt Peterson posted a blog post

The Importance of keeping Professionally Trained Gas Line Installation Technicians happy and loving their jobs!

Our company is very much a family to us, we strive to bring in and develop great people into great…See More
yesterday
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Wednesday
yanky fogel liked Home Energy Magazine's video
Tuesday
Franco Oyuela commented on Shawn Weeks's blog post How Homeowners Can Keep Electricity Costs Down in Summer Months
"Cutting back on air conditioning is also good for the environment because it reduces carbon…"
Tuesday
Seventhwave posted events
Tuesday
Franco Oyuela commented on John White's blog post Top Reasons to Consider Seasonal HVAC Maintenance
"They say an ounce of prevention is worth a pound of cure, and when it comes to HVAC units, this…"
Tuesday
Diane Chojnowski's video was featured

1950s Home Retrofit to Super Efficient Passive House - Urban Green Building

This 1950s Montreal house was retrofitted to become a super efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior. Maison Ozalée's builder, Richard Price from Construction Le Tournesol, also used triple…
Tuesday
Diane Chojnowski posted a video

1950s Home Retrofit to Super Efficient Passive House - Urban Green Building

This 1950s Montreal house was retrofitted to become a super efficient passive house by adding a 16 inch thick layer of cellulose insulation to the exterior. ...
Tuesday
Profile IconSara Melucci, Hayden Sloan and Jediah Krajcik joined Home Energy Pros Forum
Monday
Daniel Baur-McGuire replied to Beverly Lerch's discussion Mini split air conditioners and ceiling fans
"Running a ceiling fan actually heats up air. Allison Bailes has some great articles on it.  I…"
Monday
Daniel Baur-McGuire replied to Leslie Jackson's discussion DIY Filter Solution for an Evaporative Cooler, anyone?
"Where are the supply runs located? Look to make sure supply runs are sealed. I would second having…"
Monday

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