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Mr. Heater Category 3 Horizontal 6 in Vent Kit for Big Maxx Heaters

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Product details

Management number 210275135 Release Date 2026/04/02 List Price US$346.58 Model Number 210275135
Category

The category 3 horizontal 6-in vent kit provides class 3 single wall ducting for use with Mr. Heater Big Maxx unit heaters, ranging from 250,000 to 400,000 BTUs. Complies with US standard (UL1738) and Canadian standard (S636). Designed for horizontal installation only. Kit includes a 6-in male connector, a 45-degree elbow, a 6-in to 19-in long adjustable 6-in diameter vent pipe, a 12-in long 6-in diameter vent pipe, a 24-in long 6-in diameter vent pipe, 6-in INS wall penetration, screened termination, screws, and silicone sealant. Stainless steel is required for horizontal installations per new category 3 certifications. Other parts may also be required for your specific installation needs. Please check and adhere to all state and local codes before installation.

  • Category 3 horizontal 6-in vent kit for use with Mr. Heater Big Maxx unit heaters ranging from 250,000 to 400,000 BTU's
  • Stainless steel 6 in sealed ducting meets new category 3 certifications
  • Includes 6-in male connector, 45-degree elbow, 6-in to 19-in long adjustable 6-in diameter vent pipe, 12-in long 6-in diameter vent pipe, 24-in long 6-in diameter vent pipe, 6-in INS wall penetration, screened termination, screws, and silicone sealant.
  • Complies with US standard (UL1738) and Canadian standard (S636)
  • Compatible with Mr.Heater and Heatstar units 250,000 BTU to 400,000 BTU
UPC 089301007253
Color Silver
Brand Name Mr. Heater
Item Weight 22.2 Pounds
Manufacturer Enerco Group Inc.
Material Type Stainless Steel
Item Type Name Horizontal Vent Kit
Included Components 6-in male connector, 45-degree elbow, 6-in to 19-in long adjustable 6-in diameter vent pipe, 12-in long 6-in diameter vent pipe, 24-in long 6-in diameter vent pipe, 6-in INS wall penetration, screened termination, screws, and silicone sealant
Manufacturer Warranty Description 1 year limited

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