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According to Rheem, the 29-gallon XR90 Extreme Recovery Gas Water Heater exceeds the performance of most 50-gallon water heaters but costs less to operate than any standard 30-, 40-, or 50-gallon model.
Carrier. Featuring Greenspeed intelligence, the company’s latest Infinity heat pump offers an industry-leading HSPF heating efficiency rating of up to 13 along with cooling efficiency up to 20 SEER.
American Standard. The WaterSense-certified, dual-flush Boulevard toilet operates at 1.6 gpf for solids or 1.1 gpf for liquids, offering water savings of up to 20% compared to standard models, according to the company.
With the right hardware and layout, hot-water heating saves energy and makes ideal use of the sun.
Free underground heat
The RH360 solar reheat kit provides efficient, consistent tankless backup for solar water heating. Previous other solar tankless backup solutions fed the hot line from the solar tank directly to the tankless backup unit, which would heat water when the temperature started to drop, which...
Wouldn't it be nice to store excess heat generated by solar panels and biomass boilers in summer for heating during the winter? Here's a stab at a tank designed for the purpose.
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