Bosch Tankless Water Heater Review

Bosch, also known as Aquastar, tankless water heaters are among the
top in the industry. Bosch offers a large selection of tankless water heaters to choose from including
electric, gas, and propane models, indoor and outdoor models, as well as point of use and whole house models.
The Bosch Pro series of tankless water heaters are the most energy efficient available, up to 94%, and offer
an industry leading 15 year warranty. Here are a few of the top benefits of Bosch tankless water
heaters:
- Only tankless water heaters specifically designed for the U.S.
market.
- Average life expectancy of more than 20 years.
- Up to 94% efficient with energy savings up to
50%.
- Incredible 15 year warranty on heat exchanger.
- Choice between whole house or point
of use models
To help you compare a few of the top Bosch tankless water heater
models, here are side by side comparisons of the main specifications:
|
Model
|
Max Input
|
Energy Source
|
Flow Rate@ 35°F Rise
|
Efficiency
|
Warranty
|
|
920 EHC
|
225,000 BTU/Hr
|
Natural Gas
|
11.2 GPM
|
94%
|
5 Year
|
|
800 ES
|
199,000 BTU/Hr
|
Natural Gas
|
10.1 GPM
|
92%
|
15 Year
|
|
715 ES
|
199,000 BTU/Hr
|
Natural Gas
|
9.2 GPM
|
82%
|
15 Year
|
|
425 HN
|
117,000 BTU/Hr
|
Natural Gas
|
N/A
|
80%
|
15 Year
|
|
RP7P
|
240-220 Volts
|
Electric
|
1-1.5 GPM
|
99%
|
5 Year
|
|
RP3P
|
120-110 Volts
|
Electric
|
0.5-0.75 GPM
|
99%
|
5 Year
|
|
RP1P
|
240 Volts
|
Electric
|
1.5-2 GPM
|
99%
|
5 Year
|
Some Bosch tankless water heater models are available in liquid
propane as well as natural gas. All of the above models are part of the Bosch Pro series. They perform better
and are more efficient than other Bosch tankless heaters. The prices for each model vary significantly from
under $200 to around $2000.
The top four models are whole house tankless water heaters, meaning
that you can supply all of the water faucets in your home with an endless supply of hot water. The bottom
three models are point of use tankless water heaters which means that they can only supply 1-2 sinks at a
time.
You’ll need to determine your needs, the incoming temperature and
flow rate of your water to choose the Bosch tankless water heater model that will work for your home. If
you’re still not sure about which model will work best for you, you can visit
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