![]() ![]() With tube spacing of 9 to 12 inches, good underside insulation, and a reasonably low-design heating load per square foot of heated floor, it’s possible to keep interior spaces very comfortable using supply water temperatures of 100º or less, even on a cold winter day. One of the best low-temperature heat emitters is a bare concrete slab with embedded tubing. Bottom line: If you’re serious about achieving good performance from renewable energy heat sources, you have to do everything possible to reduce the water temperature of the heat emitters supplied by that heat source. Fire Protection & Design Special Sectionīeing able to lower the water temperature of a thermal storage tank at which a pellet boiler is turned on can significantly increase its overall thermal efficiency and reduce its emissions.Ethan Grossman: Water Cooler Conversations.Christoph Lohr: Professional Development Pipeline.John Siegenthaler: Renewable Heating Design.Subscribe to Plumbing Group eNewsletters. ![]()
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