"Dale, good write up.
For the landscaping bulbs, if they had been T3 12V wedge bulbs, I switch to 40 lumen bulbs sold by SuperbrightLEDS about eight years ago now. The cost about $5 a bulb... I haven't had a failure in the…"
"1kW of electric is approximately equal to 3427 BTU's of heat. In electric hot water heaters close to 98% of the 1kW is used to heat the water... the other losses are in thermostat - and wiring up to the heater.
Once the water is up…"
"German electric prices are less than Hawaii.
Frank was very accurate when he said it is location. Electric rates, NG, propane, fuel oil, all very by market locatikons as does the solar insolation.
Southern Germany can get a lot…"
"It depends where the source energy will be coming from. If the customer already had put solarPV on the roof, some of that daytime electrical energy might be coming from their own premise.
Also if the heat pump is used for…"
"We get used to it. Daylight bulbs are more efficient; however if you search the journals for the impact of using daylight (bluer bulbs), one side effect that has been suggested is a shifting of sleep habits, resulting in increased insomnia.…"
"It isn't only the number of adults and the kids in the house. Your usage patterns are also important. Put a note pad by each sink, shower/tub and have family members keep track of when and for how long they've used HOT water.…"
"In the picture above, it appears that the attic has been turned into conditioned space. The temperature stacking chart presented is not likely to be what you would see.
Turning the attic into conditioned space also helps with…"
""CFLs produce light by using electricity to instigate a chemical recation between mercury vapor and a phosphorescent powder."
Not a chemical reaction, if so you would see life significantly limited by the amount of chemicals that…"
"The key is the attention to the details, you really have to seal any "roof" ducting. It can't be leaky where it would allow air elsewhere from the attic or under the eaves to be pulled in -- unless it is filtered before…"
"There are a several of issues with using the roof as solar collector. If carefully engineered it could work, done wrong and your house and pocket book will forever suffer.
First, is heat, roofs and attics do indeed get very hot.…"
"If it is an A-19 type screw base, the fixture and wiring should be compatible. The reason is that with an A-19 bulb, it was possible to place perhaps a 100W bulb in the fixture.. 60W common, even with fixtures designed for…"
"There is a great deal of data, engineering, white papers, and published work on solar air heating. It can work, but you need a structure designed to use it. That means a structure that is air tight and well insulated so that the losses…"
"It probably is the dimmer.
Dimmers generally operate by turning on X amount of time after the zero crossing of AC line voltage. For full bright the X is equivalent to immediately. For dimmed, it may be just before the line voltage…"
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