"Good suggestions from everyone here. Chances are good that you could point your infrared camera at the main panel and tell which circuits are warm and drawing a large amount of current.
I have found a waterlogged expansion tank for the well…"
"Very nice! Which software did you use? The mouse control was a bit too sensitive for me. I think the 360° panorama is useful for helping an auditor recall certain aspects of the home that may not have been captured by a single…"
A cutaway view of most of the pressure zones measured with respect to (WRT) the adjacent space. A touch of a button changes the pressure readings to a global (outdoors) reference for training architects and scientists.
"Here is a more detailed article about the incident. Rescuers measured 1,000 ppm in the bedroom! A picture of the concentric vent is shown and it looks like the intake is partially blocked with snow. "
"NYSWDA did a small study in upstate NY in which the majority of HPWHs installed were Gen 1 GE GeoSpring 50 gal. Our study indicated that in some cases we achieved a Savings-Investment-Ratio (SIR) greater than 1.0 and in some cases we did not,…"
"Home Energy Magazin has a picture of how to use a box to measure flow at a range hood from an August 2012 article. You can use the Energy Conservatory Flow Meter, or make a similar box and cut a hole. Simply poke a hole for a manometer…"
"A lot of questions requiring some lengthy answers, but I’ll try to keep them concise. In NY, we are in the process of switching from 62.2-2010 to 62.2-2013. While it is an improvement in many ways, there are still some…"
"It's one thing to design and build new structures using state-of-the-art interfaces for occupants to intuitively manage their environment, but quite another to incorporate HBI equipment into existing structures. The plethora of engineered…"
Okay, so has anyone had time to scrutinize the just-released ASHRAE 62.2-2013 standard? How different is it from Addendum r?I see it has finer increments in the Ventilation Air Requirements table 4.1. That's good.Be sure to get the Errata sheet.Qinf = may be no greater than 2/3 * Qtot. I read that as meaning even leaky houses may need mechanical ventilation. Anyone have a -2013 spreadsheet calculator yet?Will the $20…See More
"Paul Francisco's alternative method is just fine. He has simplified the math for the procedure. Even with Paul's simplification, a spreadsheet or calculation sheet is a good idea.
Regarding ductwork, remember that the ASHRAE 62.2 Standard…"
"Very convenient web tool, Rick, makes it easy to run the calculations. I'm glad to see the improvements in 62.2-2013, such as more weather stations and a refined Table 4.1.
The ELA calculation is still a thorny calculation,…"
"OK, one question/answer at a time:
Yes, I have scrutinized the 2013 and presented a session at ACI Denver (May 2013) with Paul Francisco that compared 62.2-2010 with 62.2-2013.
Qinf may not be greater than 2/3 Qtot for NEW homes only. This is not a…"
Paul Eldrenkamp has more than 30 years experience in construction and specializes in energy efficiency. In this interview Paul discusses ways to standardize deep energy retrofits. He offers tips for executing projects and managing homeowner…