The Pentair 461031 Direct Air Intake Duct Kit provides indoor MasterTemp pool heater installations with a dedicated pathway for drawing clean outside combustion air through a 3-inch PVC duct routed vertically or horizontally to suit your equipment room layout. Shipped as a complete OEM package, the kit contains a heater panel cut-out, air orifice adapter, a section of 3" PVC pipe, a union fitting, and a screened termination cap engineered to block insects, rodents, and airborne debris from reaching the burner. By channeling fresh exterior air directly to the combustion chamber instead of drawing from potentially humid or chemically saturated indoor air, this duct kit optimizes burner performance, helps satisfy local ventilation code requirements, and extends the operational life of your MasterTemp heater.

Key Benefits

• Dedicated Outside Air Supply: Routes clean exterior air through a 3-inch PVC duct straight to the combustion chamber, ensuring the burner always receives optimal air quality for efficient ignition and flame stability.
• Vertical or Horizontal Routing: The duct can be configured to run either direction, accommodating tight mechanical rooms, low ceilings, and various wall penetration scenarios.
• All-Inclusive OEM Package: Ships with the heater panel adapter, air orifice, PVC pipe section, union coupling, and screened vent cap, so every component is on hand for a straightforward install.
• Pest and Debris Barrier: The screened termination cap prevents insects, rodents, leaves, and other foreign matter from entering the duct and compromising combustion performance.
• Efficiency and Code Support: Isolating the combustion air supply from indoor conditions improves heating efficiency, reduces internal corrosion risk, and assists in meeting building ventilation regulations.

What's Included

• Heater Panel
• Air Orifice Adapter
• 3" PVC Pipe
• Union Fitting
• Screened Termination Cap

Compatibility

• Pentair MasterTemp Heaters

Specifications

• Brand: Pentair
• Part Number: 461031

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