"Bob - just to let you know I just measured the heat off the following two lamps using an Extech 42510 heat gun. 13 watt sylvannia CFL 2700 kelvin - measured between 170 - 180 degrees. Too hot to touch. A knockoff A-19 LED from Lowes at 7 watts…"
"Bob - like I asked what thermal scan do you use for temp rating? I never recommed LEDs unless you have a lot of lamps being used or change out the five most used lamps. Residential energy use of lighting is far different than commercial. In a closet…"
"Bob - what thermal scan do you use to test for temperature? CFL's run between 175 and 185 degrees! Incandescents ran at over 195 to owell over 200 degrees. Turn on a CFL for 15 minutes and try to unscrew it. Then the same with an LED. I…"
"This discussion on all points ha been very interesting to follow. LED lamps offer a great deal more than any other current type of lighting. They are usually lower wattage, brighter (unless you want yellow light which LEDs still offer. Brightness is…"
"Don like I said originally - location/ location/location! The sun is not limited to Hawaii! I know in some places there is snow - poor Buffalo - and lots of overcast. Where there is a good source of free fuel - sun/wind/geothermal/boimass - then…"
"The cost to make hot water is in the fuel costs! Can anyone answer why Hawaii since 2010 requires all new residential, major retrofit residential, and small commercial builds requires solar hot water? Simple - fuel costs and demand on the…"
"Location! Location! plus, number of residents, plus what else is needed. If you live in an area (Florida, Texas, anywhere else in the sunbelt) solar hot water may be the way to go. We have found that electric tankless in a normal residential setting…"
"I believe that it all depends on where you live, the cost of the power source, and what type of housing we are discussing. In south Florida, I strongly urge in single family stand alone housing, a solar hot water system using…"
"Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you! Don't…"
Welcome to Home Energy Pros! Feel free to join the conversation in the Forum and Groups. And share your energy efficiency photos, videos and upcoming events. If you're blogging about home performance, this is the place for you!
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A presentation by Greg Labbé in April 2014 on retrofitting vintage home for energy efficiency. He talked about basic building science, brick houses, movement of heat energy and moisture in and out of the house, air barrier and water barrier, house…