Page 178 of Propane and Natural Gas Equipment by National Energy Equipment, Inc.

CANADAS LEADER IN ENERGY PRODUCTS EQUIPMENT  Bosch Instantaneous Tankless Water Heaters The Bosch Instantaneous Water Heater is a high efficiency, space saving answer to your water heating needs. All Bosch instantaneous water heaters heat water only as required, no energy is lost maintaining a large volume of water at elevated temperatures as in tank-type storage water heaters. NEE # BTU Fuel Type Ignition Vent Inlet NPT Outlet NPT Inlet Water Pressure Minimum Water Flow Height Width Depth Weight W125K 40,000 LP or NG Piezo with Pilot 4 1/2 1/2 13 PSI (min) 150 PSI (max) 0.6 U.S. gals./min 25 3/8 10 5/8 9 1/8 25 lbs W400-K5 117,000 LP or NG Electronic 5 1/2 1/2 8 PSI (min) 150 PSI (max) 1.8 U.S. gals./min 30 5/16 18 1/4 8 11/16 44 lbs WR400-1K 117,000 LP or NG Piezo with Pilot 5 1/2 1/2 13 PSI (min) 150 PSI (max) 0.5 U.S. gals./min 30 5/16 18 1/4 8 11/16 44 lbs WR400-3KB 117,000 LP or NG Electronic 5 1/2 1/2 13 PSI (min) 150 PSI (max) 0.5 U.S. gals./min 30 5/16 18 1/4 8 11/16 44 lbs WR400-7K 117,000 LP or NG Electronic 5 1/2 1/2 13 PSI (min) 150 PSI (max) 0.5 U.S. gals./min 30 5/16 18 1/4 8 11/16 44 lbs WR430-3K 125,000 LP or NG Electronic 4 1/2 1/2 18 PSI (min) 150 PSI (max) * 0.5 U.S. gals./min 29 3/4 18 1/4 8 3/4 55 lbs 635ES 175,000 LP or NG Electronic 3 3/4 3/4 30 PSI (min) 150 PSI (max) 0.8 U.S. gals./min 23 1/2 15 3/4 8 1/2 47 lbs * No fittings attached. All of these models are suitable for heating potable water only not approved for space heating purposes. WR400-7K W125K Popular in cottages, R.V.s, hot tubs, portable bush showers, animal grooming, mobile blind cleaning trucks, and mobile food service trucks. W400-K5 Especially designed for commercial and industrial high volume steady-flow applications, ideal for pump recirculation with storage. Can be used as 180 F booster. WR400-1K Flow controlled, this modulating unit combines high efficiency with high output, plus min. flow rate. Output temperature may be preset to any level between 90 F and 140 F. Suitable for single family residential or commercial/industrial, including use as a 180 F booster for sanitation systems. Compatible with all residential appliances and plumbing equipment. 33,000 min., 5 flue. WR400-3KB These units have all the same advantages as the WR400-1K plus electronic ignition with no continous burning pilot flame. The only high efficiency water heaters of this type in North America today that will continue to provide hot water during a power failure. WR400-7K These new units have all the same advantages as the WR400-1K plus electronic ignition with no continous burning pilot flame. WR400-7K is powered by a flow activated internal micro hydro generator. WR430-3K Featuring power venting with safety shutoff, copper heating coils for endless supply of hot water, burner output proportional to hot water flow demand for maximum energy efficiency, safety flame sensor at pilot burner, automatic over heating protection shut- off sensor, stainless steel burners with stabilized blue flame, built-in corrosion resistant power venter, adjustable water flow restrictor ensure that water flow demand will not exceed the heating capacity of the Heater. Built in Whisper Quiet Power Venter- allows to reach 15 to an outside wall with out special venting materials. Comes with extension terminal complete with anti-backdraft flapper. Also comes with 36 power cable and plug. 635ES The Pro Tankless by Bosch 635 ES features direct vent two pipe system with built in Power Venter, large capacity 17 lpm flow at 65 temperature rise, 87% efficiency, modulating gas valve and electronic ignition. With sealed combustion, a 3 vent, and the ability to vent either horizontally or vertically, it can be installed virtually anywhere. And with an efficiency rating of 87%, the ability to supply two showers running simultaneously, and a digital temperature control. This unit comes complete with a flue collar and vent termination kit and it must be installed with stainless steel venting (venting is extra). TANKLESS WATER HEATERS 635ES

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