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Lochinvar Introduces the Efficiency+100 Residential Gas Boiler
by Lochinvar

Lochinvar® Corporation recently introduced the Efficiency+® 100 residential gas boiler. Ideal for residential and light commercial use, this high-efficiency, direct-vent boiler is the latest in Lochinvar's line of high efficiency water heaters and boilers. The Efficiency+ 100 has a standard two-stage burner that saves fuel by closely matching heat output to system demand, allowing a longer burner-on cycle to maximize operating efficiency. This is important due to the fact that during the majority of the heating season less than full input is required to satisfy the heating load. To compensate, Efficiency+ 100 is able to reduce heat output and save energy. Thermal efficiency is the most accurate measurement of real efficiency because it determines the exact amount of heat transferred into the water during operation of the boiler. The Efficiency+ 100 boasts an 84 percent thermal efficiency rating, which means 84 cents out of every fuel dollar are used to create heat. The efficiency rating is outstanding considering most competitive models peak at 80 percent. To maintain maximum reliability, the Efficiency+ 100 has an integrated boiler control that ensures safe burner operation and prevents nuisance flame failures. Also, an internal diagnostic panel monitors flame performance and can quickly restart the ignition sequence automatically. Efficiency+ 100 can draw its combustion air directly from outdoors, eliminating airborne dirt particles or chemicals. The direct-vent feature also isolates the boiler from uneven air pressures caused by large exhaust or ventilation fans often found in mechanical spaces. The unit’s pre-mix burner ensures clean, quiet combustion in all atmospheric conditions, which makes the Efficiency+ 100 "environmentally friendly" with an extremely low NOx rating. Additionally, the burner is designed so that the combustion air fan is on the air inlet -- not the flue discharge -- to greatly extend fan life. The Efficiency+ 100 is efficient in size as well as performance, fitting easily where other boilers won't. The unit is also remarkably light because of its copper tube heat exchanger and the use of Loch-Heat® tile, which is similar to material found on the Space Shuttle. These design features reduce unit weight by 25 percent compared to conventional cast refractory materials. Lochinvar Corporation is a leading manufacturer of high-efficiency water heaters and boilers, ranging in capacity from small residential units to three-million-plus BTU models. Based in Nashville, Tenn., with facilities in Detroit, Mich., Tampa, Fla., Philadelphia, Pa, and Dallas, Texas, Lochinvar stocks equipment at all locations.
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