Heating System Design
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Air-to-Water Heat Pump Retrofit
A mechanical engineer shares lessons learned after replacing his propane boiler with an air-to-water heat pump to heat his home
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Our Ancient Furnace is a Goner: Now What?
A furnace replacement is an opportunity to ensure high quality indoor air as well as efficient heat
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How to Perform a Heat-Loss Calculation, Part 1
Let’s begin by discussing outdoor design temperatures and the many ways that heat can escape from a house