Residential Water Heaters
Enjoy endless hot water and save up to 50% on utility bills
Homeowners want the energy-efficient, endless supply of hot water only a gas tankless water heater can deliver. And no one builds a more complete line or gives you a longer warranty than Bosch. So which model is right for you? Click on the product links to learn more about each model, or use the new Bosch Sizing Calculator and let us do the work for you!
Bosch Therm C 1210 ES Condensing
- ASME certified
- Up to 98% thermal efficiency
- 225,000 BTU maximum input
- 12.1 gallons per minute capacity
Bosch Therm C 1050 Condensing
- Suitable for residential or commercial applications
- 92%+ thermal efficiency
- 199,000 BTU maximum input
- 10.5 gallons per minute capacity at 35³F degree rise
Bosch Therm C 950 ES Condensing
- Suitable for residential or commercial applications
- 93% thermal efficiency
- 175,000 BTU maximum input
- 9.2 gallons per minute at 35°F rise
Bosch Therm 940 ES Non-Condensing
- Highest capacity non-condensing model
- 83%+ thermal efficiency
- 199,000 BTU maximum input
- 9.4 gallons per minute capacity
Bosch Therm 940 ESO Non-Condensing
- Outdoor installation with freeze protection
- 83%+ thermal efficiency
- 199,000 BTU maximum input
- 9.4 gallons per minute capacity
Bosch Therm 830 ES Non-Condensing
- Suitable for residential or commercial applications
- 83%+ thermal efficiency
- 175,000 BTU maximum input
- 8.3 gallons per minute capacity
Bosch Therm 660 EF Non-Condensing
- Super compact 14” x 21” x 7” size
- 83%+ thermal efficiency
- 140,000 BTU maximum input
- 6.6 gallons per minute capacity
Bosch Therm 660 EFO Non-Condensing
- Outdoor installation with freeze protection
- 83%+ thermal efficiency
- 140,000 BTU maximum input
- 6.6 gallons per minute capacity
Bosch Therm 520 HN Non-Condensing
- Patented Hydro-power ignition requires no electricity
- 78%+ thermal efficiency
- 117,000 BTU maximum input
- 5.3 gallons per minute capacity
Bosch Therm 520 PN Non-Condensing
- Piezo ignition system requires no electrical connection
- 78%+ thermal efficiency
- 117,000 BTU maximum input
- 5.3 gallons per minute capacity
Bosch Therm 330 PN Non-Condensing
- Piezo ignition system requires no electrical connection
- 78%+ thermal efficiency
- 75,000 BTU maximum input
- 3.3 gallons per minute capacity
Bosch Sizing Calculator
Find exactly the right model that is best for your needs.