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Mr. Heater Big Maxx 300,000 BTU Natural Gas/LP High-Output Commercial Unit Heater
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Mr. Heater Big Maxx 300,000 BTU Natural Gas/LP High-Output Commercial Unit Heater

In stock
SKU #
36640559
MFG #
F263000
$1,799.99
Mr. Heater Big Maxx 300,000 BTU Natural Gas/LP High-Output Commercial Unit Heater
$1,799.99
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Free shipping on qualifying purchases of $99 or more. Exclusions Apply

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AK,CA,HI
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This Mr. Heater Big Maxx™ Natural Gas High-Output Commercial Unit Heater is quiet and vented for easily heating a large 10,000 sq. ft. building. The low-profile design requires only 1in. clearance from the ceiling and delivers 300,000 BTU output. Includes LP conversion kit for easy change over. Easily installs using 3/8-16 threaded rods (sold separately). CSA certified.

Features
  • Requires only 1in. clearance from ceiling with threaded rods (sold separately)
  • Spark Ignition with self-diagnostic control module
  • Designed for right or left side piping, electrical and flue connections by simply rotating 180°
  • Aluminum tubular heat exchanger for maximum efficiency and longer life
  • Ships as Natural Gas unit (includes LP conversion kit)
  • Easy external access for thermostat connections and AC terminals
  • Compatible with WiFi/Digital thermostats (not included)
  • Power exhaust with 6in. flue allows for vertical or horizontal venting (Category 1 Vertical and Category 3 Horizontal venting, kits sold separately)
  • Max mounting height of 18ft. from floor to bottom of heater (18in. clearance from side, rear, and corner walls) * 1/2in. gas connection
  • Thermostat sold separately — Item# 173641
  • Check local codes and ordinances for approved installation and usage — See product manual for venting and electrical supply requirements
  • Manufacturer's Warranty: 3 year limited warranty
  • Ship Weight: 245.0 lbs
  • Fuel Type: Natural gas or LP
  • BTU Output: 300,000
  • Heating Capability (sq. ft.): 10,000
  • Blower Included: Yes
  • Blower CFM: 4,507
  • Thermostat Included: No
  • Volts: 120
  • Product Weight: 227
  • Dimensions L x W x H (in.): 41.3 x 28.7 x 24.8