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Heating & Air Conditioning ⁄ Tankless Hot Water Heater ⁄ Bosch Tankless Water Heaters. ⁄ GWH450ESR

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Bosch GWH 450 ESR N Or L Heavy-Duty Heat Exchanger Tankless Water Heater Natural Gas Or Liquid Propane

Item Number : GWH450ESR

Price:  $1,147.99
Free Shipping

Bosch GWH 450 ESR N Or L Heavy-Duty Heat Exchanger Tankless Water Heater Natural Gas Or Liquid Propane

PRODUCT DETAILS
Bosch GWH 450 ESR L Heavy-Duty Heat Exchanger Tankless Water Heater Liquid Propane
 

Heavy-duty and durable heat exchanger specifically designed for recirculating applications. 
Thermostatically controlled, this heater is ideal for smaller heating applications, tank loading for a solar application or in conjunction with a tank for DHW.
Recirculating tankless water heaters for the professional.
  • Durable heat exchanger specifically designed for recirculating applications
  • Vents vertically or horizontally with 3" stainless steel (AL29-4C)
  • Direct vent and sealed combustion
  • LCD screen displays temperatures, burner operation, & diagnostic codes
  • Separate temperature controls for domestic water heating & recirculation
  • 10-year limited warranty

 

Rated Efficiency
81%
Power Input
120,000 BTU/Hr
Maximum Output
98,400 BTU/Hr
Minimum Output
35,500 BTU/Hr
Water Temp in Heating Circuit*
115°F - 190°F
Maximum Exhaust Vent Length
39' with one elbow**
Dimensions
H: 27½" W: 15¾" D: 11½"
Weight
47 lbs.
Modulating Gas Valve
Yes

§  *Temperature setting range     **(90° elbow equals 6'; 45° elbow equals 3')

 

Installation Specifications
Gas Connection
¾" Male NPT
Water Connections
½" Male NPT
NG Gas Pressure
Minimum: 5.5" WC
Maximum: 8" WC
LP Gas Pressure
Minimum: 11" WC
Maximum: 14" WC
Electrical Supply
120 VAC - plugs in
Exhaust Vent Size
3" AL 29-4C single wall sealed stainless steel vent pipe (Z-Flex, Protech, Heat Fab)
Intake Vent Size
3" Aluminum Flex, PVC or any other rigid or semi-rigid sealed pipe

 

The Benefits of Going Tankless

Most homes and businesses in North America use a storage tank water heater to provide domestic hot water. A tank water heater keeps water hot 24 hours a day, even while you’re at work or sleeping. A tankless water heater, on the other hand, does not store hot water. It heats the water as needed, cutting out needless energy consumption and reducing water heating bills up 50%.
Bosch ProTankless is designed to last. Made from durable copper, steel and aluminum parts, with nothing to rust or collect sediment, these units have twice the average lifespan of traditional tank water heaters. This gives our landfills a break and makes them the right choice for today’s demanding “Green Building” practices.

 

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