Tankless Water Heater - What size do you need?
This page will give you a quick look at all our gas and electric water heaters.
For more information, please review each heater's detailed information
and on-line manuals.
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Natural Gas or Propane Tankless Water Heaters
Click here for Electric Tankless Water Heaters
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One major use
A single standard use is considered to be 2.5 gallons per minute (GPM)
More info...
- Bosch AquaStar 1600P - Standing Pilot - Gravity Vent
- Bosch AquaStar 1600H - Battery Sparked Ignition - Gravity Vent
- Rinnai V53i - Electronic Ignition - Direct Vent
- Rinnai T-KJr2 - Electronic Ignition - Direct Vent
Bosch 1600H will give you a max output of 4 GPM.
A 50-degree water input and a 55-degree temperature rise will give you
3.3 gpm. This is enough for a standard shower (2.5 gpm) and
maybe a small sink at the same time.
More info...
Bosch 1600P will give you a max output of 4 GPM.
A 50-degree water input and a 55-degree temperature rise will give you
3.3 gpm. This is enough for a standard shower (2.5 gpm) and
maybe a small sink at the same time. With a Standing Pilot.
More info...
Rinnai V53i Gas Tankless Water Heater will give you 4.6 pgm with 45-degree water input
and a 55-degree temperature rise will give you 3.6 gpm. This is enough for a standard shower (2.5 gpm) and
maybe a small sink at the same time.
More info...
Takagi T-KJr2 will give you a max output of 6.9 GPM.
A 50-degree water input and a 55-degree temperature rise will give you about 4.1 GPM. This is enough for one
standard shower (2.5 gpm each) and a sink at the same time. We call the TKJr2 a 1 1/2 use machine.
The Takagi T-KJr2 can also be used for heating applications up to 180 degrees.
More info...
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Two major uses
A single standard use is considered to be 2.5 gallons per minute (GPM)
click for more info
- Bosch AquaStar 2400ES - Electronic Ignition - Direct Vented
- Bosch AquaStar 2700ES - Electronic Ignition - Direct Vented
- Rinnai R75Lsi - Electronic Ignition - Direct Vented
- Rinnai R94Lsi - Electronic Ignition - Direct Vented
- Takagi T-K4 - Electronic Ignition - Direct Vented
- Takagi T-M32 - Electronic Ignition - Direct Vented
Bosch AquaStar 2400ES Model will give you a max output of 6.35 GPM.
A 50-degree water input and a 55-degree temperature rise will give you 5.3 gpm.
Sealed Combustion - pulls combustion air from outside or inside.
This is enough for two standard showers (2.5 gpm each).
More info...
Bosch AquaStar 2700ES Model will give you a max output of 7.15 GPM.
A 55-degree temperature rise will give you 5.9 gpm. This is the largest tankless water heater
that Bosch produces. Enough for two to three standard uses at one time (2.5 gpm each).
More info...
Rinnai Tankless Heater R75Lsi will give you (with a 50-degree water input and a
55-degree temperature rise) up to about 5.6 GPM. This is enough for two
standard showers (2.5 gpm each) and a sink at the same time.
More info...
Rinnai Tankless Heater R94Lsi will give you (with a 50-degree water input and a
55-degree temperature rise) up to about 6.0 GPM. This is enough for two
standard showers (2.5 gpm each) and a sink at the same time.
More info...
Takagi T-K4 Model will give you a max output of 6.9 GPM.
A 50-degree water input and a 55-degree temperature rise will give you about 5.9 GPM. This is enough for two
standard showers (2.5 gpm each) and a sink at the same time. The Takagi T-K4 can
also be used for heating applications up to 180 degrees.
More info...
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Three major uses or more
A single standard use is considered to be 2.5 gallons per minute (GPM)
click for more info
- Takagi T-M32 - Electronic Ignition - Horizontal or Vertical Power Vented
Takagi Tankless Water Heater T-M32 Model will give you a max output of 9.0 GPM.
A 50-degree water input and a 55-degree temperature rise will give you about 6.5 GPM. This is enough for three
lower flow showers (2.5 gpm each) at the same time. The Takagi T-M32 can
also be used for heating applications up to 180 degrees.
More info...
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Specialty Uses
- Bosch AquaStar 1000P - Standing Pilot
Bosch AquaStar 1000P Model will give you about 1 GPM with a 50-degree water input
and 55-degree rise. The 1000P should not be used for showers.
More info...
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