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Bosch AquaStar 2400ES Tankless Water Heater Buy Page
On Demand Instant Water Heater in Natural Gas (NG) or Propane (LP)

The Bosch 2400ES has replaced the Bosch AquaStar 2400E

Bosch AquaStar 2400ES
(Built-in Power Vent / Direct Vent - No Pilot Light)
For Installation over 2,000 feet - please call us before purchasing a Bosch 2400ES
MODEL Your
Cost 		Change quantity in your Shopping Cart. You can always remove items later.
Bosch AquaStar Model 2400ES - Direct Vent Tankless Water Heater - Natural Gas $1,049.00
Bosch AquaStar Model 2400ES - Direct Vent Tankless Water Heater - Propane Gas $1,049.00
Bosch AquaStar 2400ES Venting Accessories
Bosch Sidewall Venting Kit - Model AQ3ES
Kit Includes:
Qty: 1 - 3" diameter by 12" 2SVEPWCF0301
Qty: 1 - 3" diameter by 18" 2SVEPWCF0318
Qty: 1 - 3" diameter 90-degree elbow 2SVEEWCF0390
Qty: 1 - Wall Thimble 2SVSWTF03 (For walls 4.5 to 7")
Qty: 2 - Exhaust Hood 2SVSTB03 (10" sleeve)
Additional pipe can added by clicking the ZVent link below
Customer responsible for supplying ridgid intake pipe (PVC) 		$249.00
Bosch Vertical Vent Kit - Model ESVVT
Kit Includes:
Qty: 1 - 3" diameter by 12" 2SVEPWCF0301
Qty: 1 - 3" diameter 90-degree elbow 2SVEEWCF0390
Qty: 1 - 3" diameter Adjustable Roof Flashing 2SVSADJF03
Qty: 1 - 3" diameter Storm Collar 2SVSLSF03
Qty: 1 - 3" diameter Fire Stop Support 2SVSFSSF03
Qty: 1 - 3" diameter Rain Cap 2SVSRCF03
Qty: 1 - 3" diameter Vertical Condensation Drain Tee 2SVEVWCF03
Qty: 1 - Condensation Drain Tube Kit 2SVEDTK24
Additional pipe can added by clicking the ZVent link below
Customer responsible for supplying ridgid intake pipe (PVC) 		$269.00
Z Vent ZFlex Venting Accessories for the Bosch AquaStar 2400E and Bosch 635ES
Click here to see Zvent Z Flex 3-Inch Sealed Stainless Pipe Venting Accessory Parts for Bosch AquaStar 2400ES Tankless Water Heaters
Optional Accessories
Click on links below for more information
AquaStar 2400E, 2400ES and 2700ES Temperature Remote Controller Model TSTAT $199.00
AquaStar Outdoor Installation Kit - AQOK $139.00
Falcon Stainless Steel 3/4 Inch x 24 inch Flexible Water Connections Set of 2 - Model 2434 $19.75
Falcon Stainless Steel 3/4 Inch x 18 inch Flexible Water Connections Set of 2 - Model 1834 $12.75
Webstone Isolator EXP Tankless Water Heater Flanges Set Sweat- Model 50443 $98.75
Webstone Isolator EXP Tankless Water Heater Flanges Set Thread - Model 40443 $98.75
Bosch AquaStar 2400ES Water Heater highlights:
  • Run 2 single shower heads or 2 other major uses at one time *
  • Direct Vent Room Sealed Combustion
  • Must use 3" Stainless Steel Exhaust Vent Pipe
  • Horizontal or Vertical venting
  • 5.3 gpm at a 55°F rise - Max 6.4 gpm
  • 12 Year Warranty on Heat Exchanger - 2 Years on Parts
  • Wireless Remote available for setting or changing water temperature
  • Built-in Power Vent allows for Vertical or Horizontal Vent Termination
 * Major use - 2.5 gpm per use - (single shower head, dishwasher, washing machine)

Please Note:
For Massachusetts Residents' considering purchasing and installing the 2400ES - please read this document:
Sidewall Venting Information for Commonwealth of Massachusetts.


If there's a problem with your installed AquaStar Water Heater please contact the manufacturer, Bosch Hot Water, at 1-800-642-3111 for warranty claim instructions. HouseNeeds, Inc. does not accept the return of any installed water heater. Bosch Hot Water handles all warranty issues.
HouseNeeds Return Policy      HouseNeeds Shipping Policy


Bosch AquaStar 2400ES Tankless Water Heaters

View all Bosch Hot Water Manufactured Products here
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