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AquaStar Specs and Design Features
AquaStar by Bosch Tankless Water Heaters are fueled by either Propane or Natural Gas.
This page will give you all the Specs and design info for all the water heaters made by AquaStar
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AquaStar Design Features
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The features list is long –
Bosch AquaStar Tankless
Water Heaters are designed to last a lifetime. The quality of the AquaStar begins with this
inside story: all water parts are solid copper or solid brass. The unit is
constructed with stainless steel and aluminum. Unlike tank heaters, every
part is replaceable or recyclable. Properly maintained, this may be the
last water heater you ever buy.
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all water parts are solid copper or solid brass
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unit is constructed with stainless steel and aluminum
- casing is
finished with baked epoxy
- heat exchanger
is made of solid copper
- burners are
made of stainless steel
- unit has a
safety thermocouple and overheat shutoff protection
- AGA and CGA
design certified
- 82% efficiency
rating and .80 energy factor — highest in industry
- longest
warranty (10 years on the heat exchanger)
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Available in both propane (LP) and natural gas
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Manufactured
by Robert Bosch.
Few names in
manufacturing are as well known as Robert Bosch. You may already use some
of their well designed power tools. And Bosch has been making tankless
water heaters for over 60 years. More than 4,000 units are produced every
day at Bosch's Vulcano factory. It is a state of the art facility with rigorous
standards for quality control, including ISO 9002.
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Model
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38B
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125HX / 16000H
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125FX
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125B / 125BO
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250SX
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125BS
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Energy Factor
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.66
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.80
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.78
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.69
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.85
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.69
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Efficiency
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80%
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82%
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80%
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82%
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87%
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82%
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BTU/input
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40,000
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117,000
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125,000
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117,000
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175,000
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117,000
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Minimum Flow Rate GPM
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0.6
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0.5
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0.5
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0.5
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0.8
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0.5
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@ 45° rise
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1.3 GPM
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4.0 GPM
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4.0 GPM
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4.0 GPM
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6.4 GPM
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4.0 GPM
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@ 55° rise
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1.0 GPM
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3.3 GPM
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3.3 GPM
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3.3 GPM
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5.3 GPM
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3.3 GPM
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@ 65° rise
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0.9 GPM
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2.8 GPM
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2.8 GPM
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2.8 GPM
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4.5 GPM
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2.8 GPM
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@ 75° rise
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0.8 GPM
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2.4 GPM
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2.4 GPM
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2.4 GPM
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3.9 GPM
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2.4 GPM
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@ 90° rise
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0.6 GPM
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2.0 GPM
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2.0 GPM
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2.0 GPM
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3.3 GPM
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2.0 GPM
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Flue Size
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4"
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5"
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4"
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5"
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3"
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5"
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Water Inlet
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1/2" NPT
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1/2" NPT
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1/2" NPT
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1/2" NPT
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3/4" NPT
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1/2" NPT
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Gas Inlet Connection
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1/2" NPT
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1/2" NPT
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1/2" NPT
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1/2" NPT
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3/4" NPT
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1/2" NPT
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Min. Natural Gas Line
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1/2" NPT
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3/4" NPT
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3/4" NPT
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3/4" NPT
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3/4" NPT
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3/4" NPT
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Min. LP Gas Line
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3/8"
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5/8"
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5/8"
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5/8"
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3/4"
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5/8"
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Height
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25 3/8"
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29 3/4"
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29 3/4"
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29 3/4"
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23 1/2"
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29 3/4"
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Width
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10 5/8"
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18 1/4"
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18 1/4"
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18 1/4"
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15 3/4"
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18 1/4"
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Depth
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9 1/8"
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8 3/4"
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8 3/4"
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8 3/4"
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8 1/2"
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8 3/4"
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Shipping Weight
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25 lbs
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44 lbs
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51 lbs
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44 lbs
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47 lbs
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44 lbs
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Recom. Min. Water Pressure
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30 PSI
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30 PSI
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30 PSI
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30 PSI
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30 PSI
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30 PSI
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Max. Water Pressure
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150 PSI
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150 PSI
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150 PSI
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150 PSI
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150 PSI
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150 PSI
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Min. LP Gas Pressure
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11" W.C.
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11" W.C.
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11" W.C.
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11" W.C.
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11" W.C.
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11" W.C.
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Min. Natural Gas Pressure
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7" W.C.
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7" W.C.
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7" W.C.
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7" W.C.
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5" W.C.
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7" W.C.
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