Bosch Therm 940 ES 199k BTU Residential Indoor Tankless Water Heater

The Bosch Therm 940 ES 199k BTU Residential Indoor Tankless Water Heater is a Bosch Therm 940 ES non-condensing gas tankless water heater for residential indoor domestic hot water applications. The 199 MBH platform is designed for homes needing stronger flow performance than the 830 ES while using the Therm non-condensing product family.

Bosch submittal data identifies the 940 ES with 199 MBH input, 160.5 MBH gross output on natural gas, minimum 82% ANSI Z21 efficiency, and 257 gallons per hour recovery at a 77°F rise. Bosch Therm Series literature lists the 940 ES with 9.4 GPM capacity at a 35°F rise and 6.0 GPM at a 55°F rise.

Product Features:

• 199 MBH Maximum Input: Higher Therm Series input rating than the 830 ES model.
• 9.4 GPM at 35°F Rise: Bosch Therm Series literature lists this capacity for the 940 ES.
• 6.0 GPM at 55°F Rise: Specified flow point helps size the unit for colder incoming water conditions.
• 257 GPH Recovery at 77°F Rise: Submittal sheet lists recovery performance at a 77°F temperature rise.
• Natural Gas Fuel Version: Configured for natural gas service according to the product title.
• 82% Efficiency Reference: Product naming and Bosch literature place the Therm ES platform around 82–83% non-condensing efficiency.
• Intelligent Cascading Capability: Bosch Therm Series literature identifies cascading capability up to 24 units.

Warranty

This product includes a manufacturer’s limited warranty. Verify model number, fuel type, electrical requirements, venting, water quality, and local code requirements before installation.