Pentair 461031 Direct Air Intake Duct Kit
Part Number: 461031
Description
This kit provides a dedicated 3″ PVC air intake duct system designed for indoor installations of Pentair MasterTemp® pool heaters, enabling proper combustion air supply where outdoor air access or clearance may be limited.
Compatibility & Fitment
- Designed for use with Pentair MasterTemp pool heaters installed indoors or in locations where external combustion air is insufficient.
- Allows the heater to draw air from a remote location via the included 3” PVC duct to meet manufacturer and code requirements.
- Applicable for in-ground pool heater setups where proper venting and combustion air clearance must be maintained.
Features & Specifications
- Includes: heater panel with pre-cut opening, air orifice adapter, short section of 3″ PVC pipe, 3″ PVC union and screened termination cap.
- Nominal duct size: 3″ PVC; purpose-built for combustion air intake.
- OEM Pentair kit — ensures correct fit, performance and warranty compliance.
Installation Notes
Shut off power and fuel supply to the heater. Remove the existing air intake panel on the heater cabinet and install the supplied panel kit. Connect the 3″ PVC union and pipe to the air inlet orifice adapter. Route the duct to the termination cap outdoors or to a ventilated space in accordance with local building and mechanical codes. Secure all connections and verify the intake path is unobstructed. Power on the heater and observe proper ignition and operation.
Maintenance Tip
Inspect the termination cap and duct annually for blockage, insect ingress or debris. Ensure the union and gasket remain tight and corrosion-free. Replacing or servicing the duct system when clearance changes or building modifications occur helps maintain reliable heater operation and optimal combustion performance.
