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Bosch AquaStar 2400ES
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Bosch AquaStar Tankless Water Heaters
Propane (LP) & Natural Gas (NG) Hot Water Heaters built by Bosch



Bosch AquaStar Tankless Water Heaters are available in either Propane Gas (LP) or Natural Gas (NG). Bosch Aquastar tankless hot water heaters provides 4 sizes of gas hot water heaters that can be used in single or multiple unit installations to deliver continuous hot water in residential and commercial applications.
  • 2400ES - Direct vent, 2 showers, vertical or horizontal venting
  • 2700ES - Power vent, Electronic ignition, 2 showers
  • 2400EO - Outside Installation, 2 showers, 87% Efficiency
  • 1600H - Hydro-Powered Sparked Ignition - no outside power required
  • 125FX - Electronic Ignition with a built in power vent
  • 1600P - Standing pilot and Efficient
  • 1600PS - Backup Solar Hot Water Heater Systems
  • 1000P - Small usage for sinks and other low flow needs
Please click on the links and "Pricing" Button for more information on our full line of gas water heater and to compare prices.

Bosch AquaStar 2400ES On Demand Tankless Water Heater - Natural Gas or Propane
Bosch Tankless Water Heater - 2400ES
Bosch Aquastar 2400ES
The Bosch 2400ES replaces the Bosch 2400E.
The Bosch 2400ES hot water heater has quickly become the tankless water heater of choice for families needing to operate two major hot water applications at a time. With an average life expectancy of more than 20 years, energy savings of up to 50%, and an endless supply of hot water, your family will thank you for years to come. Easy to install with multiple venting options, the Bosch AquaStar 2400ES is the right choice.

The high performance Bosch 2400ES sets a standard for tankless water heating by delivering over 5.2 gallons of instand hot water continuously at 82% efficiency — enough to shower with even while filling the tub or washing machine. Yes, you can run two showers at one time!
Pricing for Bosch AquaStar 2400ES Tankless Water Heaters

Bosch 2700ES Gas or Propane On Demand Power Vent Hot Water Heater
Bosch AquaStar 2700ES
Bosch Aquastar 2700ES
The Bosch AquaStar 2700ES Direct Vent (Room Sealed Combustion) hot water heater is powerful enough for 2 major uses at once (and up to 3 in warmer climates). For example - run two showers at once, or a dishwasher and shower at the same time. The Bosch 2700ES can be vented up through the roof or out through a side wall with 3-inch sealed stainless steel pipe or mounted outside in warmer climates with the Optional Outdoor Kit. This unit is 82% efficient and about 33% better than a new tank. The Bosch AquaStar 2700ES comes with a 12 Year warranty on the heat exchanger and 2 year warranty on other parts.
click here for Bosch AquaStar 2700ES Tankless Water Heater pricing info

AquaStar 2400E Gas or Propane On Demand Direct Vent Water Heater
Bosch AquaStar 2400E
Bosch Aquastar 2400E
The Bosch 2400E replaces the Bosch 250SX.
The high performance 2400E sets a standard for tankless water heating by delivering over 5.3 gallons (max 6.35 gpm) of hot water continuously at 87% efficiency — enough to shower with even while filling the tub or washing machine. Yes - you can even run two showers at one time!
The Bosch Aquastar 2400E is a sealed combustion tankless water heater which means that you can pull combustion air from outside or inside. Venting either to an outside wall or up through the roof. The 2400E tankless hot water heater also can pull air from inside if you can not get to outside air. Yes - this is a very flexible tankless water heater.
Pricing for the Bosch AquaStar 2400E tankless water heater

AquaStar 2400EO Gas or Propane On Demand Direct Vent Water Heater
Bosch AquaStar 2400EO
Bosch Aquastar 2400E0
The Bosch 2400EO replaces the Bosch 250SXO. The same high performance as the Bosch Aquastar 2400E but for outside installations in warmer climits. Delivers over 5.3 gallons (max 6.35 gpm) of hot water continuously at 87% efficiency — enough to shower with even while filling the tub or washing machine. Yes, this tankless hot water heater can even run two showers at one time!
Pricing for the Bosch AquaStar 2400EO Tankless water heater

Model 125 gas tankless instantaneous water heater
Bosch AquaStar 1600P







Inside View of Model 125 tankless water heater
Inside View 1600P
Bosch Aquastar 1600H
The Bosch 1600H replaces the Bosch 125HX.
The NEW Bosch AquaStar 1600H No Pilot tankless water heater and utilizes Bosch's revolutionary hydro-generated ignition system incorporating hydro technology into a domestic tankless hot water heater appliance.
The Bosch AquaStar is designed to last. The quality of the AquaStar begins with its inside story: all water parts are solid copper or solid brass. The unit is constructed with stainless steel and aluminum. Unlike tank heaters, every part is replaceable or recyclable. Properly maintained, this may be the last hot water heater you ever buy.
Pricing for the AquaStar 1600H tankless water heater
Bosch Aquastar 125FX
The Bosch AquaStar 125FX is the same great water heater as the 125HX - but with a built in power-vent for horizontal side wall venting. No electricity or gas is used when this instant water heater is idle. Use the FXhood Terminator for easy install of the Aquastar 125 FX Gas Instant Hot Water Heater.
Pricing for the AquaStar 125FX tankless water heater
Bosch Aquastar 1600P
The 1600P is the right size model for most homes and is the ideal household water heater. It offers the same high performance of the 125HX, but has a standing pilot. The Bosch 1600P replaces the Bosch 125B Tankless Water Heater.
Pricing for the AquaStar 1600P tankless water heater
Bosch Aquastar 125BO
The Bosch Aquastar 125BO Tankless Water Heater supplies one major hot water application at a time, such as a shower. Built for outdoor installation with built-in freeze protection down to 5°F. No venting needed. The 125BO is the outdoor version of the 125B.

Pricing for the AquaStar 125BO tankless water heater
Bosch Aquastar 1600PS
The Bosch 1600PS replaces the Bosch 125BS.
Specifically designed as a backup to preheated water such as that produced by solar water heating system or wood heating systems. The burners turn off when the preheated water is already at the desired temperature. Is perfectly suited for solar applications.
The 1600PS is a new model to replace the 125BS.

Pricing for the AquaStar 1600PS tankless water heater

Bosch Aquastar 1000P Tankless Instant Hot Water Heater
Bosch Aquastar 1000P
The Bosch 1000P replaces the Bosch 38B. This small Bosch gas tankless water heater is ideal for cottages, camps, and other specific applications where a small volume of hot water is desired. The compact size of the 1000P means you save valuable floor space and is available in both natural gas (NG) and liquid propane (LP). Pricing for the Bosch AquaStar 1000P tankless water heater





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Bosch AquaStar tankless water heaters Click Image
Reconditioned AquaStar Bosch Water Heaters on sale for $399.00 - and more.

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Bosch AquaStar 2400E tankless water heaters on Sale Click Image
Reconditioned Bosch AquaStar 2400E on sale for $799.50 - and more.

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