Bosch/Aquastar Tankless Water Heaters

Bosch Therm 330 PN Tankless Water Heaters

The ideal tankless solution for smaller residential applications, this modern day tankless water heater provides instant hot water and doesn't waste energy when you don't need hot water

This tankless water heater features:

• Endless hot water for residences with one shower
• Piezo ignition system requires no electrical connection
• 3.3 gallons per minute capacity at 35°F degree rise
• Minimum activation flow rate of 0.5 gallons per minute
• High to low temperature control
• Built for durability and serviceability
• Integral safety features include flame failure prevention and a temperature limit device to prevent overheating
• Available in NG and LP models
• Overall dimensions: 12.20" x 22.83" x 8.66"
• Weight: 26 lbs.
• View specifications

Venting

• Natural Draft
• Vent diameter: 4" double wall type B
• Minimum height: 6' with no elbows
• Vertical termination only

Water related specifications

• Min Flow Rate: 0.5 gpm
• Inlet Connection: 1/2" NPT
• Outlet Connection: 1/2" NPT
• Max Water Pressure: 150 psi
• Min Water Pressure: 13 psi
• Connections at bottom of heater

Gas/power related specifications

• Gas connection: 1/2" NPT
• Min NG/LP pressure: 5.7 / 10.5 Inch WC
• Max NG/LP pressure: 14 Inch WC
• Max Input: 75,000 BTU/hr
• Min Input: 30,735 BTU/hr
• 78%+ thermal efficiency

Important Note: these water heaters are not designed for outdoor installation, use above 4,500ft A.S.L. altitude, in mobile installations, or for space heating purposes. Also, if the inlet water temperature is higher than 140°F, then a 3-way valve or mixing valve must be installed.

- Or -

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Bosch Therm 940 ES Tankless Water Heaters

This high capacity tankless water heater is designed to meet the demands of busy households and can even be used in most solar thermal and recirculation applications. Mobile home certified, this model can be installed almost anywhere thanks to its sealed combustion and dual-fan technology.

This tankless water heater features:

• Endless hot water for up to three applications at once
• Electronic ignition and patented burner design
• Minimum activation flow rate of 0.5 gallons per minute
• Default 122°F temperature is adjustable with built-in digital control panel with precise 2°F temperature increments between 100°F and 140°F
• Built for durability and serviceability
• Integral safety devices including overheat prevention and inlet, outlet, and backflow temperature sensors
• Available in NG and LP models
• Overall dimensions: 17-7/8" x 30-1/2" x 11-1/4"
• Weight: 67 lbs.
• Low NOx 2012 Compliant
• View specifications

Venting

• Requires 3" or 4" Category III stainless steel venting
• Vents vertically or horizontally

Water related specifications

• 9.4 gpm capacity at 35°F degree rise
• 6.0 gpm capacity at 55°F degree rise
• Min Flow Rate: 0.5 gpm
• Inlet Connection: 3/4" NPT
• Outlet Connection: 3/4" NPT
• Max Water Pressure: 150 psi
• Min Water Pressure: 30 psi
• Connections at bottom of heater

Gas/power related specifications

• Gas connection: 3/4" NPT
• Min NG/LP pressure: 3.5 / 8 Inch WC
• Max NG/LP pressure: 10.5 / 13 Inch WC
• Max Input: 199,000 BTU/hr
• Min Input: 19,900 BTU/hr
• 83%+ thermal efficiency

Important Note: these water heaters are not designed for use above 8000ft A.S.L. altitude or for space heating purposes. Outdoor installation requires an outdoor kit (PTOK). Also, if the inlet water temperature is higher than 140°F, then a 3-way valve or mixing valve must be installed.

- Or -

Save money and get a quick price quote ... it only takes a minute and is well worth it!!!
Unlike most other products, we cannot show our low pricing on the web for these items (click here to find out why).
To request a price quote, simply select the items you are interested in by clicking the box "Add to quote →"
Then click the button to add the item(s) to your quick quote request list.

Bosch Greentherm C 1050 ES Tankless Water Heaters

Condensing water heaters capture the latent heat of the flue gases to essentially pre-heat the water, boosting the efficiency by approximately 10% when compared with an equivalent non-condensing heater. And that's only the tip of the benefit iceberg. Tankless water heaters are inherently more efficent than tank style heaters as they only use gas to heat the water when there is a demand, saving you from wasting money keeping water warm when you don't need it. And, speaking of large, these water heaters are not. Requiring only a fraction of the space of a traditional tank-style water heater, these fantastic condensing water heaters are wall mounted and can typically be vented right through that same wall, saving you even more space, time, and money. Need more hot water at once? No problem - this model may be link with up to four of the same model to meet higher hot water demands. All together, you really couldn't ask for a better water heater!

This tankless water heater features:

• Designed for residential or commercial applications
• May link up to 4 units for higher hot water demands
• Minimum activation flow rate of 0.5 gallons per minute
• Default 122°F temperature is adjustable with built-in digital control panel with precise 2°F temperature increments between 100°F and 140°F
• Built for durability and serviceability
• Integral safety devices including overheat prevention and inlet, outlet, backflow, and exhaust temperature sensors
• Built in freeze protection
• Available in NG and LP models
• Overall dimensions: 17-7/8" x 30-1/2" x 11-1/4"
• Weight: 74 lbs.
• Low NOx 2012 Compliant
• View specifications

Venting

• May use 3" or 4" Category III stainless steel twin pipe or concentric venting, depending on installation
• Concentric up-and-out venting for single units
• Linked units may use a single roof vent
• Vents vertically or horizontally

Water related specifications

• 10.7 gpm capacity at 35°F degree rise
• 6.8 gpm capacity at 55°F degree rise
• Min Flow Rate: 0.5 gpm
• Inlet Connection: 3/4" NPT
• Outlet Connection: 3/4" NPT
• Max Water Pressure: 150 psi
• Min Water Pressure: 30 psi
• Connections at bottom of heater

Gas/power related specifications

• Gas connection: 3/4" NPT
• Min NG/LP pressure: 3.5 / 8 Inch WC
• Max NG/LP pressure: 10.5 / 13 Inch WC
• Max Input: 199,000 BTU/hr
• Min Input: 19,900 BTU/hr
• 94%+ thermal efficiency

Important Note: these water heaters are not designed for use above 8000ft A.S.L. altitude or for space heating purposes. Outdoor installation requires an outdoor kit (PTOK). Also, if the inlet water temperature is higher than 140°F, then a 3-way valve or mixing valve must be installed.

- Or -

Save money and get a quick price quote ... it only takes a minute and is well worth it!!!
Unlike most other products, we cannot show our low pricing on the web for these items (click here to find out why).
To request a price quote, simply select the items you are interested in by clicking the box "Add to quote →"
Then click the button to add the item(s) to your quick quote request list.

Please note: For potential safety reasons, we do not recommend using PVC to vent gas tankless water heaters.
For the best results, always follow the manufacturer's recommendations regarding metal venting pipe.

Looking for parts for your Aquastar/Bosch?

Note: if you're replacing multiple water heaters (old tank style),
you may want to order a water heater drain pump to reduce labor by quickly/easily removing the water.