Questions about ways to measure and improve the ability to get useful work out of devices that consume energy. This includes coal, oil and gas as well as electricity.

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2
votes
1answer
223 views

looking for a WATT-O-METER with specific features

Recently i have bought an OWL+USB WATT-O-METER and got very disappointed. Making a long story short, i'm looking for a device that will give me: accurate readings good software for data management a ...
6
votes
0answers
69 views

Does anyone have experience with small heat-recovery air exchangers?

I know there are units made which are supposed to be sized for use in a residential kitchen, as a more efficient replacement for the usual vent hood (bring air in to replace air blown out, but ...
1
vote
0answers
26 views

How can I tackle thermal downdraught?

Thermal downdraught on windows is a fact of life. I understand the mechanics involved, but that doesn't make it any more comfortable! Short of replacing the glass in my double-glazed units with (yet) ...
1
vote
0answers
79 views

How should I seal and insulate a crawlspace to mitigate radon and allow for storage in the space?

Background: I recently bought a house built in 1996. It has a 1480sq ft (approx) living area, which is the same as the crawl space size. The location is in the Kansas City metro area. The yard is ...
1
vote
0answers
92 views

Will a single ductless mini-split heat pump be able to distribute its air evenly throughout my ranch house?

I am in the middle of a deep energy retrofit of my house, and a quick-and-dirty online manual J calculation of the projected loads once my projects are completed shows an estimated heating and cooling ...
1
vote
0answers
63 views

How do I maximize light gain and minimize heat gain for my glass wall?

How to get maximum benefit of daylight while optimizing air-conditioner benefit for a glass wall (currently) of size 11' * 8' (total 88 square feet exposed). Facts: The glass wall never gets direct ...