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AquaStar 125BO Tech Info
Bosch Tankless Hot Water Heater Designed for Outdoor Installation
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Installation info for the AquaStar Hot Water Heater Model 125BO
Follow information provided on this page.
Installation and
service must be performed by a qualified installer, service agency or the gas
supplier.
This Aquastar 125BO water heater utilizes a standing pilot for ignition. The Bosch
Aquastar 125BO is designed for outdoor installation in warm climates which
eliminates the need to vent the water heater. Sized for most homes and small
businesses. The Bosch 125 propane is designed to last. 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.
·Required Clearances
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AquaStar Model 125BO
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Amount
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TOP
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3 feet
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FRONT
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4 feet
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BACK
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0"
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SIDES
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4 feet
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BOTTOM
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1 foot
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·Dimensions AquaStar Model 125BO
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Height
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Width
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Depth
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Weight
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36-3/4"
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18-1/4"
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10-1/2"
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57 lbs.
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·Installation Requirements AquaStar Model 125B
Locate the heater where an adequate gas line size and plumbing connections are feasible and
convenient. The hot water lines should be kept short to save energy. Centrally locating the water
heater is best. It is always best to have hot water lines insulated to
prevent the possibility of any freeze damage.
The water in the 125BO water heater is cold and always remains cold except for the times that
hot water is being used. The heater is equipped with freeze prevention
equipment that will operate and prevent freezing of the water in the heater to 5°F with no wind chill.
Electrical power must be maintained to the heater to allow this to function.
Proper insulation of the water lines below the heater is required if below freezing temperatures, below
32°F, are ever anticipated!
If the temperature drops below 32°F, freeze damage to the water heater itself must be prevented by
turning off the power to the heater, then disconnecting the plumbing connections,
as well as removing the drain plug and introducing short bursts of compressed air (20-40 psi) through the
heater's connections. This will remove the residual water in the horizontal pipes and water valve.
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