WATER HEATER SLASHES EMISSIONS Rheem Water Heating has unveiled an 18-model lineup of ultra-low nitrogen-oxide-emitting residential gas water heaters. The heaters feature a stainless-steel radiant burner that slashes emissions to 10 nanograms per Joule. Tank sizes range from 28 to 50 gallons (106 to 189 L) with gas inputs of 30,000 to 40,000 Btu per hour. (800) 621-5622 / www.rheem.com
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