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Versatility and Dependability: ProTankless GWH 715 ES
- 82% thermal efficiency – .82 energy factor
- Direct vent, room-sealed combustion
- Vents vertically or horizontally with 3" stainless steel (AL29-4C)
- Ability to cascade units for increased flow rates
- Outdoor installation using optional kit
- Suitable for recirculating applications
- Available in natural gas (NG) or liquid propane (LP)
- 15-year warranty
Download Bosch GWH 715 Sell Sheet & Manual below:
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| | GWH 715 ES
| | Power Input | NG: 199,000 BTU/Hr
LP: 199,000 BTU/Hr
| Maximum Flow to Activate
| 0.65 gallons per minute (gpm)
| Flow Rates
| 35°F rise@ 9.2 gpm
45°F rise@ 7.3 gpm
55°F rise@ 5.9 gpm
65°F rise@ 5.0 gpm
77°F rise@ 4.2 gpm
90°F rise@ 3.6 gpm
| Energy Factor
| NG: .81
LP: .82
| Thermal Efficiency
| NG: 82+%
LP: 82+%
| | Dimensions | H: 30½" W: 17.875" D: 11¼" | | Weight | Electronic
| | Modulating Gas Valve | Min Firing Rate: 19,900 BTU/Hr
Max Firing Rate: 199,000 BTU/Hr
| | Ignition | 67 lbs.
| | Accessories | Horizontal Vent Kit (#4TWHVK3S)
Outdoor Kit (#PTOK) [See PDF Manual]
Wireless Remote (#TSTAT2)[See PDF Manual]
Tankless Link Cascading Kit (#TLINK)
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| GWH 715 ES Installation Specifications | Gas Connection (inches)
| ¾" Male NPT | | Water Connections | ¾" Male NPT | Inlet gas pressure under
operation (with a high hot
water flow rate)*
| Propane:
8: - 13" water column
Natural Gas:
3.5" - 10.5" water column
| | Water Pressure | Minimum: 30 PSI
(Well): 40 PSI
Maximum: 150 PSI | | Electrical Supply | 120V - (plugs in) | | Installation Clearance | Top: 12"
Front: 1"
Back: 0"
Sides: 1"
Floor: 12" | * To measure gas pressure, see Measuring Gas Pressure in your manual, chapter 3.12, page 24.
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