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Bosch Pro Tankless

Instantaneous Gas Water Heater

Eliminates the standby losses associated with conventional tank type water heaters. This coupled with its 80% efficiency can reduce the cost of heating water by 20 to 50%. The water is heated on demand as the flow of water triggers the heater on, which provides an endless supply of hot water. Water connection 1/2" NPT, gas connections 1/2" NPT. Min. water pressure 15 psi, max water pressure 150 psi, minimum flow to activate burners: 3/4 gpm. Thermostatic control combined with water flow rate modulates the flame to regulate the output temperature to preset temperature. Models ending in S modulate down to zero and are therefore suitable for use with solar water heating systems. Models ending in HN are spark-ignited by a Micro-Trubine which is activated by a request for hot water in the house. The models ending with EF have a built in Power Vent, ideal for horizontal through-the-wall venting. GWH 635ES with 6.35 gpm @45 degree F rise is powerful enough to supply two showers simultaneously. Available in natural gas or propane (specify at the time of ordering). 10 year limited warranty.

BP Solar
Spec Sheet Description
This file is a PDF - It will open in a new window Inst. Water Heater 40 K BTU/H NG or LP
This file is a PDF - It will open in a new window Inst. Water Heater 117 K BTU/H with zero mod. NG or LP
This file is a PDF - It will open in a new window Inst. Water Heater 117 K BTU/H no pilot NG or LP
This file is a PDF - It will open in a new window Inst. Water Heater 130 K BTU/H electronic ignition, power vented NG or LP
This file is a PDF - It will open in a new window Inst. Water Heater 175 K BTU/H electronic ignition, power vented
  Power Vent Kit for Thru Wall 110V 1.26 Amp 80 & 125 &GWH 425

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