Clean Burning
October 2008
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The Eternal water-heating system uses patented counter-flow design and a multipass heat exchanger to maintain 86% thermal efficiency with consistent pressure. The GU32 is engineered to be one of the cleanest gas-burning appliances on the market, operating at a significantly lower emission rate than other water heaters and emitting only 5 ppm NOx (nitrogen oxide)—well under the 55 ppm mandates. Consistent water temperature and pressure are achieved with the heat exchanger configuration. The water heater’s computer monitoring system prevents scalding or cold-water shock. Grand Hall, www.eternalwaterheater.com


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