Bosch AquaStar AQ1
Horizontal Venting Power Vent Package


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Drawing of AquaStar Water Heater with an optional PowerVent through the outside wall
AQ1 Power Vent
Power Vent option illustrating the side wall vent option that allows horizontal venting and elimination of the chimney. Use the Bosch Power Vent AQ1 ONLY for models 125BS, 125B, 125BL, 1600PS, 125HX and 125X.

The AquaStar Power Vent Kit is designed to allow horizontal venting and direct termination on an outside wall. A gas pressure sensor switch turns on the vent fan as soon as the AquaStars burners activate. The blower fan exhausts flue gases to the outside. The fan accepts 4 inch vent pipe. (see the Installation Manual for more info - you can download it below)

If outside tempertures fall below 32°F you should use the Backdraft flapper that comes with AQ1 Power Vent.

The AQ1 can not be used as a substitute for the AQ4.

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Click Here to Purchase a Bosch AquaStar AQ1 PowerVent