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Bosch Gas Tankless Water Heaters   Gas Water Heaters
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PowerStream Electric Water Heaters   PowerStar - POU
Ariston Point of Use Water Heaters   Ariston


Bosch Water Heater Accessories   Heater Accessories
Bosch Gas Tankless Water Heaters   3" Z Flex Vent Pipe
Bosch Gas Tankless Water Heaters   5" Simpson B Vent
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Bosch 2400ES Tankless Water Heater        HotWaterHeaterDirect.com sells Bosch Tankless Water Heaters and related water heater accessories.
Techs & Specs   |    Indoor Installation   |    Outdoor Installation   |    High Altitude Operation   |    Warranty   |    Buy
Bosch 2400ES Tankless Water Heaters, natural gas or propane 2400ES tankless water heaters
Bosch 2400ES
Tankless Water Heater

Bosch 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° rise - maximum 6.4 gpm
  • Choose either Natural Gas or Propane Gas
  • 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

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!


Bosch AquaStar 2400ES - Technical Specifications
BTU Input NG: 19,900 to 175,000
LP: 19,900 to 175,000
Energy Factor .82
Thermal Efficiency 82%
Ignition Electronic (120V plugs in)
Minimum Flow Rate to Activate 0.65 GPM
Flow Rates (gpm) 6.4 @ 45°F rise
5.3 @ 55°F rise
4.6 @ 65°F rise
3.8 @ 77°F rise
3.2 @ 90°F rise
Weight 67 lbs.
Dimensions 30 1/2" H by 17.875" W by 11 1/4" D
Modulating Gas Valve Yes
Life Expectancy 20+ years
Voltage 120 VAC
Vent Options Horizontal or Vertical or Outdoor with AQOK Outdoor Kit
Gas Connection 3/4 inch Male NPT
Water Connections 3/4 inch Male NPT
Natural Gas Pressure Min: 4" WC
Max: 14" WC
Propane (LP) Gas Pressure Min: 9" WC
Max: 14" WC
Water Pressure Min: 30 PSI
Max: 150 PSI

Bosch AquaStar 2400ES - Indoor Installation Specifications
Exhaust Vent Size 3-inch Stainless Steel
Combustion Air Pipe Size 3-inch PVC / Alum. / Galv.
Vent Options Horizontal or Vertical
Vent Termination Horizontal or Vertical

Bosch AquaStar 2400ES - Outdoor Installation Specifications
The Bosch 2400ES cannot be installed outside without the optional Outdoor Installation Kit Model AQOK.
Outdoor Installation approved only for climates where potential freezing conditions are infrequent and not severe.

Bosch AquaStar 2400ES - High Altitude Operation
Propane or Natural Gas Models
Altitude 0 - 2,000 ft
(0-610 m)
No modification
Altitude 2,000 ft - 4,500 ft
(610m-1,372m)
CO2 adjustment with flue gas analyzer required
contact manufacturer for instructions
Altitude above 4,500 ft
(1,372m)
Not approved
For operation at elevations above 2,000 ft (610 m) the equipment ratings shall be reduced at the rate of 4% for each 1000 feet (305m) above sea level.


Bosch AquaStar 2400ES Limited Warranty

General
Bosch AquaStar water heaters are warranted by the manufacturer, Bosch, through Bosch Water Heating. Bosch Water Heating will furnish a replacement of any other part which fails in normal use and service within the applicable periods specified below, in accordance with the terms of this warranty. The Bosch Water Heating replacement will be warranted for the unexpired portion of the original warranty. This warranty will be valid only for water heaters in possession of the original purchaser as recorded on the warranty card.

The Heat Exchanger
If the heat exchanger fails within twelve (12) years after the original installation and operation, Bosch Water Heating will furnish a replacement heat exchanger. However, if the water heater is installed in other than a single family dwelling, or is used as a circulating heater in any application, this heat exchanger warranty is limited to two (2) years from date of original installation and operation.

All Other Parts
If any other part fails within two (2) years after original installation and operation, Bosch Water Heating will furnish a replacement part free of charge.

Shipping Costs
In addition to supplying the replacement part(s), Bosch Water Heating will provide ground service delivery for these parts.Expedited or upgraded shipping will be charged to the customer.

This warranty does not cover any labor costs associated with service, removal or re-installation of part(s). All such costs must be borne by the Purchaser.

Exceptions
This warranty will not apply:
  1. to defects or malfunctions resulting from failure to properly install, operate or maintain the unit in accordance with the printed instructions provided
  2. to damage or abuse, accident, neglect or freezing and other acts of nature
  3. to damage resulting from operation with either the thermocouple or overheat sensor removed
  4. to failure of the heat exchanger resulting from the operation of the water heater in a corrosive atmosphere or at water temperatures exceeding the maximum rating, or if the water heater is not supplied with potable water
  5. to defects or damage cause by any attachment or modification, including any energy-saving device

Note:
The water heater must be free of damaging scale deposits and not subject to gas pressures greater than those shown on the rating plate, which must not be altered, defaced or removed.

It has come to our attention that products from Bosch Water Heating are being sold through on-line auctions and other unauthorized distribution channels. We believe that in some cases there are legitimate consumers trying to sell product that they have purchased through legitimate distribution channels. However, we are finding that some of the merchandise has actually been stolen from our customers. Please be advised that our product warranty is void with respect to stolen goods. Further, we reserve the right to require a legitimate sales receipt showing that the product was purchased from one of our customers in order to provide warranty coverage.

How to Make a Claim
  1. Owner should submit the warranty claim directly to Bosch Water Heating at the address listed below, and they will arrange for the handling of the claim.
  2. Whenever any inquiry or service request is made, be sure to include the water heater model number, the date of manufacture, date of installation, Dealer's name and the watts and voltage
  3. When returning the water heater or component part(s), they must be individually tagged and identified with the Returned Goods Authorization # issued by Bosch Water Heating and shipped prepaid to Bosch Water Heating at the address below.

Miscellaneous
No one is authorized to make any other warranties on behalf of Bosch Water Heating. It is expressly understood that the replacement warranty of Bosch Water Heating shall be in lieu of any and all other warranties, express or implied, including warranties of merchantability or fitness for a particular use or purpose, and further that Bosch Water Heating shall not be liable for any loss or damage directly or indirectly arising from the use of the hot water heater, or for any consequential damages arising from such use (including damages from water leakage). Bosch Water Heating's sole liability with respect to any defect shall be for the replacement of defective part(s). Some states do not allow such limitations and exclusions, so the above may not apply to you. This warranty gives specific legal rights. You may also have other rights which vary from state to state. In the event that warranty service is required, reasonable proof of the effective date of installation and operation must be provided; otherwise it may not be possible to honor warranty.

Attention New Bosch Owners –

Fill out your warranty card on-line! - Click Here

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