Bosch 7738003449 User Manual
Tankless Water Heating Solutions
Residential and Commercial Applications
1 | Tankless Water Heating Solutions
9 Sq Ft
0 Total
Sq Ft
13%
12%
4%
11%
14%
17%
29%
Cooling
Appliance
Lighting
Electronics
Other
Water Heater
Heating
The Benefits of Going Tankless
The US Dept of Energy says that directfired residential tank storage heaters are
among the highest energy-consuming
appliances in the home. Only heating and
air conditioning systems consume more
energy. If your home is utilizing a
traditional tank style water heater that is
more than eight years old, then it's time to
upgrade to a modern system with
advanced design and engineering to save
space in your home, reduce your utility
bills and conserve the Earth's resources.
U.S. Household Energy Use
Source: DOE website. www.energystar.gov/
Endless Hot Water On-Demand
Bosch tankless water heaters work “on-demand” to produce hot water when needed,
for as long as needed. There is no storage tank, so you never have to worry about
running out of hot water or waiting for the tank to recover, even during peak use.
Saves Up to 50% on Water Heating Costs
A tank style hot water heater keeps water hot 24 hours a day, whether it is needed or
not. Bosch tankless water heaters produce hot water only when needed, reducing
needless energy consumption and therefore cutting water heating costs by up to 50%.
Space Saving Technology
A typical tank water heater requires up to 9 sq ft of space. If the price per sq ft of real
estate in your area is $150, that’s almost $1350 worth of space to be re-purposed.
Tankless water heaters are compact and can be installed virtually anywhere —
even outdoors.
Reduces Greenhouse Gases
The EPA identifies NOx as a polluting gas contributing to acid rain, respiratory
problems, and climate change. Bosch’s condensing tankless models use an exclusive
pre-mix combustion process which achieves up to 98% thermal efficiency and meets
the 2012 SCAQMD low NOx emission requirements (14ng/j).
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An Inside Look at Tankless Advantages
Bosch Greentherm Condensing Gas
Tankless Water Heater
Features
u Greater than 94% thermal efficiency
u Superior energy factor up to 0.95
u Up to 184°F temperature
(commercial application)
u Altitude tested to 8,000 ft
u Many venting options
Durable heat exchanger design –
complete water path is made of
copper pipes
Patented, fully modulating burner
design – generates endless hot water
Built-in digital control panel
Active bypass for temperature stability
(not visible behind control panel)
External access to inlet water filter
for easy maintenance
Traditional Gas
Direct Fired Tank Water Heater
Key Benefits
Provides endless hot water on demand
Compact, easy access with 100% serviceable parts
Built-in digital control panel with precise 2°F temperature increments
Maintains efficiency over the life of the appliance
Fully modulating “vertical” burner that works only on demand
Bosch Therm and Greentherm Gas
Tankless Water Heater
3
3
3
3
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A Bosch exclusive
Stored water loses on average,
20% of its heat up the flue and
through sidewalls
Cycles on and off 24 hours a day,
seven days a week
Mineral build-up leads to tank leaks
and greater inefficiency
Small burner can't keep up when
demand is high
Traditional Gas Storage
Tank Water Heater
✕
✕
Tanks are usually replaced
✕
High to low setting
✕
Sediment build-up
✕
Heat loss up the chimney
Average life expectancy
Bosch dual heat exchangers minimize
As little as 2%
heat loss for up to 98% efficiency
20+ years
In excess of 22%
Heat rises and energy is wasted
up the flue
6-12 years
3 | Tankless Water Heating Solutions
Why Bosch is Your Best Choice
Bosch is a Name You Know and Trust
Everyone knows and respects Bosch for its unsurpassed commitment to quality,
innovation and value within a broad range of products including: automotive parts,
power tools, home appliances, boilers, tankless water heaters, solar and geothermal
heat pumps. Bosch is highly recommended by professional contractors and is a
brand that loyal customers refer to their friends and family.
Your Single Source for Hot Water Systems
Whether you are replacing a worn out tank water heater, renovating a master bath,
or building a new home, you can trust Bosch for a high-quality water heating solution
that‘s a perfect match for your needs. With over 125 years of engineering experience,
you can buy with confidence knowing that Bosch products are designed to work
together seamlessly to allow professional contractors the ability to install the most
efficient, customized system for your needs.
Even Flame Pattern
15
YEAR
WARRANT Y
Bosch Exclusive Safety and Precision Controls
Bosch is the only major tankless water heater manufacturer to offer a built-in
digital control panel with the ability to adjust water output temperatures in precise
2°F increments across the entire temperature range, an important safety feature
for homes with children and elderly family members. This feature is available on the
Therm and Greentherm models.
Bosch Exclusive Design for Scale Prevention
Bosch’s patented heat exchangers offer dual-fan and fully modulating vertical burner
design to achieve an “even” flame pattern, preventing hot-spots and corrosion common
with other tankless water heater burner designs. Bosch's proprietary built-in turbulators
help to prevent scale build-up that can reduce operating efficiency, allowing Bosch
tankless water heater to work efficiently and last longer.
Peace-of-Mind Warranties — Best in Industry
Bosch products are also renowned for their reliability and longevity. All products
are built using top-grade materials and tested to meet the highest standards for
performance and sustainability, which is why Bosch can back tankless products
with the most generous warranties in the industry. See complete warranty details
at www.boschheatingandcooling.com.
www.boschheatingandcooling.com | 4
Smart Bosch Technology Delivers Up to
98% Efficiency When You Need it Most
Bosch offers the most efficient condensing tankless water heaters on the market —
up to 98% efficient — which are designed to offer maximum efficiency during high
demand time periods in the average North American home. Competing products
reach their optimal efficiency during off-peak usage times when demand is typically
low. Bosch Therm models offer significant savings on utility bills through clean,
efficient use when homeowners need it most.
Bosch Tankless Water Heating Solutions
Bosch gas tankless condensing and non-condensing water
heaters offer efficiency, versatile fuel sources (natural or liquid
propane gas), multiple installation and venting options, and long
service life. Residential models offer limited 15-year heat
§
exchanger warranty
available for indoor or outdoor installation. With high-efficiencies,
the Therm and Greentherm models are Low NOx compliant and
ENERGY STAR® rated.*
. Therm and Greentherm models are
Therm Condensing
Gas Tankless Water Heaters
u Up to 98% thermal efficiency
u Hot water output 100-140°F, up to 184°F
with high-temp kit*
u Altitude tested to 8,000 ft
u Multiple venting options
u 15-year limited lifetime heat exchanger
warranty on residential applications
Low NOx
§
Greentherm Condensing
Gas Tankless Water Heaters
u Greater than 94% thermal efficiency
u Active bypass for superior
temperature stability
u Vents with PVC or Polypropylene
u Concentric up-and-out vent option
requires only one five-inch penetration
through wall
u May be common vented with up to four
units in commercial applications
Low NOx
Therm Non-Condensing
Gas Tankless Water Heaters
u Up to 83% thermal efficiency
u Available with Piezo ignition – requires
no electricity (520 PN & 330 PN)
u Multiple vent configurations
u Vent with galvanized B-vent
u Available in outdoor version*
Bosch Therm and Greentherm Models
Up to 24 Bosch Therm and Greentherm models can be linked
together to achieve higher flow rates than with single units. For
example, cascading 24 C 1210ESC units delivers an incredible
290 gallons per minute.
u Cascade up to 24 units to satisfy jobs of all sizes
u Cascading with electric mini-tank for recirculation to manage
long pipe runs
u Advanced tank loading with multi-pump high-output system
u Commercial kitchen with high demands
u Inline with solar thermal storage tank
* Consult chart on page 6 for applicable models
§
For complete warranty details see www.boschheatingandcooling.com
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