Clues a Water Heater Gives You
If only we would listen, water heaters would have a lot to tell…See More
Solar Panel Size?
How do you determine how many solar panels you need? Use this solar panel sizing guide: https://greencoast.org/solar-panel-size/
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How many BTU required to heat air
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Derating / Rating Old Insulation
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Green Button Connect
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Assessing the true end user price of installing a new boiler?
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Installing High Efficiency Equipment....?
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Floor I joists and properly installed insulation
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Solar Panel Size?
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Your Top Energy Efficiency Tips for the Heating Season
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ACEEE 2019 State Energy Efficiency Scorecard
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HVAC Contractors Expand Their Role in Home Performance
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HCFC Refrigerant Ban: Everything Contractors Need to Know
As of January 1, 2020, HCFC refrigerant use will be severely limited in the United States. If you…See More
"Thanks David - I knew HPWH definition, just was not sure why you wanted (and still don't) its…"
"The abbreviation HPWH refers to a domestic water heater, not an air-to-water space conditioning…"
"Also one last point on the final benefit. Although we do not have time of day energy rates,…"
"You rest assured on one point - if I go ahead with hybrid, I will definitely be reporting on its…"
"Are you meaning the space conditioning heat pump or domestic hot water on your bullet 1? How…"
"Thanks for follow up David, Valid comments. The facet flow is high, I was basing on current…"
"I don't dive into numbers as well as David does because if you do analyze a situation only by…"
"Your consumption numbers seem rather high if not unrealistic, especially sink draws, which add up…"
"Sean wrote: "The only question is what will be the cost for the extra 4000K of heating needed…"
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