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…Continue
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…Continue
Originally published on Feb. 22, 2016 on RMI Outlet.
By Douglas Miller (Rocky Mountain Institute) & Laura Reiter (Cineflix)…Continue
Added by Douglas Miller on February 22, 2016 at 2:00pm — No Comments
[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…Continue
Added by Home Energy Magazine on February 16, 2016 at 1:30pm — No Comments
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…Continue
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…Continue
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…Continue