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…energy-efficient models that help block out cold air. If replacing windows is too expensive, you can make single-pane windows more…
…fluctuate how high the furnace fires depending on the temperature outside. A mild, 40-degree day may call for a furnace to fire…

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…They ve done that by ensuring every element is faithful to the period. Some of the projects they ve carried out include replacing windows with custom mullioned casements; swapping modern lighting for period chandeliers, sconces and pendants; and returning…

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…goal is to air seal and insulate the homes, says Annette Conti, HCBA executive director. Most people think first about replacing windows, but we are spreading the word about where they are losing heat. She says the main culprit is often all of the little…

Jump To: How To Library » Special Features » Green Homes Special Series

…how to make these energy-efficient changes. Get several estimates for larger projects, such as adding insulation, replacing windows or doors, or installing a tankless water heater. For energy-saving projects, you may also want to calculate their…

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…best as the outermost sheet of glazing. Thermal performance is increased…
…heat transmission through the glazing), the better the material…
…transfer from the inside to the outside. Most low-e coatings also…
…light transmitted through the glazing relative to clear glass. Here…

Jump To: How To Library » HVAC » Solar Heating

…of thermal mass. The glazing area determines how much…
…ratio of thermal mass to glazing varies by climate…
…be insulated from the outside temperature. If it…
…heat absorbed on the outside of an 8 inch-thick…
…windows with no overhead glazing. Sunspaces may experience…

Jump To: How To Library » HVAC » Solar Heating

…methods are multiple layers of glazing, gas fills (of inert argon…
…low-e (low-emissivity) glazing or films. Some manufacturers…
…insulation material between several glazing layers to create a more thermally…
…or awnings on the inside or outside of the skylight. Some units…

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