"I've used the efergy Elite whole house energy monitor to evaluate 240V HPWHs. I found the accuracy varied as much as 20% due to the quality of the CTs. I tested and matched up the good ones and created matched pairs of the ones with known…"
Linda Wigington distinguished between deep retrofits & deep energy reductions, thus expanding the range of strategies & tactics from which we might propose when engaging with people, the ones who choose.See More
"There are several factors affecting the effectiveness of range hoods, height, length and width, and CFM. A fairly accurate way to measure the CFM flow is tape a corrugated cardboard box across the range hood to completely seal it off, then cut a…"
"Any accredited contractors in Bristol, CT that could locate the Mr. Koslosky (sp?) mentioned in the video and see if he still has ice dams? (which he probably does). It would be interesting to see the results of a real audit and what his actual…"
"Just as Alexander's book points out that the pattern language he presents is just one of many patterns, so it is with defining patterns in houses as systems. And while apprenticeship is a tried-and-true means to learn these patterns as…"
"That's a good solution for correcting the error after leaving the site.
I recommend changing the order of your range correction procedure. When your gauge calls for the next smaller ring, change the gauge setting first, then install…"
"Show the HO the total house and CAZ depressurization with all exhaust fans running and just the whole house fan running. You may be back-drafting the DHW now. Use the blower door to pressurize the house back up to zero Pascals. …"
ACI (Affordable Comfort, Inc.) is a nonprofit organization providing cutting-edge information, education and best practices in the area of residential building construction known as home performance and weatherization. Through national and regional educational and networking events, ACI provides innovative building science knowledge presented by renowned industry experts focused on advancing residential energy efficiency nationwide. It is our…See More
NYSWDA tested a number of release agents about 3 years ago and pioneered the use of wax emulsion (log sealer) for their props. One brand is made by UC Coatings and is called Anchorseal which works well to allow foam to release from wood.…"
Thanks for writing all of the tools-of-the-trade articles. A big help for many folks.
I just switched from the Wizard Stick to the Dragon Puffer. Both use food-safe theatrical fog fluid and were invented by Joel and Alan Aronie…"
A hammer and a saw used to be the key tools for home contractors. Today, the best-in-breed also use high-tech equipment while performing a professional energy audit or verifying that construction has been done correctly.
"Hi Ed. Interesting perspective, no cold, just less heat. Now I've got to teach that a blower door doesn't depressurize a house, it makes it less pressurized than the outdoors. Oy. I could argue that heat sometimes rises because…"
"Ed, just as stack effect in the winter is caused by heated air rising inside a home and leaking out through leaks in the attic and second floor; reverse or negative stack effect can happen in the summer due to cooled indoor air descending and…"
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