All Discussions Tagged 'insulation' (24)

Discussions Replies Latest Activity

Derating / Rating Old Insulation

Does anyone have a calculation or guide you follow to de-rate the r-value of existing insulation? I'm familiar with RESNET grading, but th…

Started by Haley Keegan

4 yesterday
Reply by Haley Keegan

Your Top Energy Efficiency Tips for the Heating Season

As we move toward the heating season, what are your top tips for homeowners to keep their energy bills under control? ElectricityPlans.com…

Started by rebecca bridges

6 Dec 1
Reply by Robin Henry

How to Insulate Exposed Outdoor Ductwork?? Help

A local business has the main duct plenums for return and supply located outside going to an RTU furnace/AC on the ground. Two trunks aroun…

Started by Daniel Baur-McGuire

13 Jul 29
Reply by Daniel Baur-McGuire

Exterior green cladding

Hello everyone,      I am searching for green cladding alternatives for a farm home currently using cedar planks that are too old and comi…

Started by Luis Hernandez

3 Apr 19
Reply by Dennis Heidner

Adding blown insulation to poorly installed batts?

I am curious about other's experience as I get asked the following question all the time:  Is it necessary to pull out a poorly installed b…

Started by Dav Camras

10 Aug 17, 2018
Reply by Peter Krych

Green Building Tips for a School Bus RV Conversion Project

Hello all! I am currently ripping out the interior of a school bus that I am converting to an RV to live and travel in. I am familiar with…

Started by Jenna Bader

4 May 3, 2018
Reply by ayazfudugo1

Insulation Blower Recommendations?

Does anyone have any recommendations for a residential insulation blower?  We currently use an InsulMaxx 5000, and we've been pretty happy,…

Started by Jim Conlon

5 Feb 23, 2018
Reply by Brad Cook

Exterior Insulation for Deep Energy Retrofits

Heya! I've been lurking for a while on the various formats that came together for the HEP Forum. Haven't posted/contributed for a while due…

Started by Shawna Henderson

28 Dec 9, 2017
Reply by Tim

The effects of higher residential energy efficiency on the rest of the economy

This excited me: http://link.springer.com/article/10.1007/s12053-015-9392-9 The effect of more energy efficient households is shown to ripp…

Started by Harry Silver

0 Jan 30, 2017

What were R-value requirements of various code versions?

I'm trying to figure out what level of attic, wall, basement wall insulation levels were required by the different code versions over the y…

Started by Martin Newmark

8 Jan 5, 2017
Reply by Martin Newmark

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Forum

How many BTU required to heat air

Started by Sean Wiens in HVAC. Last reply by Brad Cook 1 hour ago. 12 Replies

Derating / Rating Old Insulation

Started by Haley Keegan in Weatherization. Last reply by Haley Keegan yesterday. 4 Replies

Green Button Connect

Started by Rob Buchanan in General Forum. Last reply by Steve Schmidt on Monday. 1 Reply

Installing High Efficiency Equipment....?

Started by Horace Douglas Hunt, Jr. in General Forum. Last reply by Horace Douglas Hunt, Jr. Dec 5. 5 Replies

Solar Panel Size?

Started by Kyle Baker in Best Practices Dec 2. 0 Replies

ACEEE 2019 State Energy Efficiency Scorecard

Started by Diane Chojnowski in General Forum. Last reply by Horace Douglas Hunt, Jr. Nov 29. 1 Reply

HVAC Contractors Expand Their Role in Home Performance

Started by Diane Chojnowski in General Forum. Last reply by Horace Douglas Hunt, Jr. Nov 29. 1 Reply

Latest Activity

Brad Cook replied to Sean Wiens's discussion How many BTU required to heat air
"If your room is air sealed and insulated on all 6 sides, where is the thermal energy going to come…"
1 hour ago
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Sean Wiens replied to Sean Wiens's discussion How many BTU required to heat air
"Hi David, No we did/do not have water metering. My estimate had a mistake in formulas- SORRY. …"
9 hours ago
David Butler replied to Sean Wiens's discussion How many BTU required to heat air
"you wrote: "I have calculated I would need around 114,600 gals of hot water year" Huh?…"
17 hours ago
Sean Wiens replied to Sean Wiens's discussion How many BTU required to heat air
"Thanks David,  Was just thinking we do not have the large swings in the summer that I think…"
20 hours ago
David Butler replied to Sean Wiens's discussion How many BTU required to heat air
"Not sure how a locational bias plays into this... it doesn't take much of a swing for daily…"
22 hours ago

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