DHW
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Engineering a Domestic Hot Water System to Meet High Demand
What’s the best back-up option for a big family that always runs out of hot water?
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Domestic Hot Water
Gas or electric? Tank-style or tankless? There's no perfect solution.
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Getting Into Hot Water — Part 4
Monitoring data show that the Geyser heat-pump water heater didn’t save very much electricity, while a Stiebel Eltron unit performed better
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Getting Into Hot Water — Part 3
Plan a home-run pipe layout with a central manifold, and keep your pipe runs as short as possible
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Get Ready for Heat-Pump Water Heaters
New federal regulations will require heat-pump models for larger electric water heaters in 2015
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Get Rid of Your Gas Water Heater!
Electric resistance and heat-pump water heaters make more sense