Featured Blog Posts – February 2016 Archive (9)

Who among us tracks the accuracy of Manual J?

Who among us tracks the accuracy of Manual J?

I have hour meters on maybe 20 systems now.    I like to see the run time when it's "4" degrees in Kansas City.  99% rate in KC is +4' degrees.  My goal at 4' is 100% run time.   I have a super sealed home 2,100 square feet  with a 2 ton ground type heat pump R-30 walls, R-60 attic, R-8 windows & doors with 98% run time @ "+ 4' ".  When the strip heat turned on, it smelled up the home with the dirt  off the 5 KW strip, heat…

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Added by Eric Kjelshus on February 27, 2016 at 8:06pm — 4 Comments

Home Energy Efficiency, Meet Real Estate: A 2015 Year in Review and a Forecast for the Future

A lot is happening at the intersection of residential energy efficiency and real estate.

First, let us set the scene. Elevate Energy and others have long recognized a specific challenge: When homeowners invest in improving the energy efficiency of their home and property, these measures are often…

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Added by Melissa Ulbricht on February 25, 2016 at 10:05am — 1 Comment

Truly Reality TV: Finding the Right Time and Place for Home Energy Performance

Originally published on Feb. 22, 2016 on RMI Outlet.

By Douglas Miller (Rocky Mountain Institute) & Laura Reiter (Cineflix)…

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Added by Douglas Miller on February 22, 2016 at 11:00am — No Comments

Well-Built Dumb Home

Well-Built Dumb Home

  • One of the smartest things ever said about building a new home, was about something dumb:…

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Added by Chris Laumer-Giddens on February 17, 2016 at 5:45am — 4 Comments

Texas' Five-Star Butterfly and Hummingbird Retreat

[This blog is cross-posted from Home Energy Magazine.]

By Doug Garrett

When we built our new home 50 miles from Austin on 21+ acres we made the decision to have all of our indoor water come from harvested rainwater and to make our flower gardens bigger than they were at our first country…

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Added by Home Energy Magazine on February 16, 2016 at 10:30am — No Comments

Bonus room attic walls heat load

Hi Everyone...

First of all I am 59yr old retired Federal employee. I took HVAC in a trade school 30 years ago. While working a full time job, HVAC was basically side work for me. After a couple years of  residential installs and service work, I transferred into the building maintenance dept. HVAC was 75-80% of my job. We went to several onsite schools for a couple days here and there for the newest HCAV stuff. Keep in mind this is all commercial units we are working on in Federally…

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Added by Anthony Adams on February 12, 2016 at 11:15am — 4 Comments

The Compliance Project

Many of us have been working for decades to push the energy codes toward higher performance. We've had some good success along the way, as state after state adopt more stringent codes. Unfortunately, in many regions we have a long, long way to go. Even in those places where the most stringent codes are in place, execution and enforcement are often weak. And, as for going…

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Added by Chris Dorsi on February 11, 2016 at 12:14pm — 13 Comments

Insulating a Slab-On-Grade in Hotlanta

Insulating a Slab-On-Grade in Hotlanta

Why in the world are we insulating a slab-on-grade in Hotlanta?

Reason #1: Atlanta is not, I repeat, NOT a cooling dominated climate. Wait...What?!?!?

Yes, it gets plenty hot here in the Summer, but it also gets downright cold. Which is why it's one of the more difficult climates to design and build in. We get both extremes.

I'm not saying we know what cold is, like all y'all do up yonder in them…

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Added by Chris Laumer-Giddens on February 1, 2016 at 4:03am — 9 Comments

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