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  • 400,000 BTU Big Boxx Natural Gas Industrial Utility Heater w/ Natural Gas to Propane Conversion Kit (HSU400NGPALP / F164000)

400,000 BTU Big Boxx Natural Gas Industrial Utility Heater w/ Natural Gas to Propane Conversion Kit (HSU400NGPALP / F164000)

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SKU: F164000

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PRODUCT DETAILS

The HeatStar HSU400NG Big Boxx 400,000 BTU unit heater will turn your garage or barn into a work space you can use all year-round. It uses a built-in high velocity electric fan to pull cool air in and across the heat exchanger, then forces warm, comfortable air out. Its low profile design requires only a 10-ft minimum ceiling height and 1-in. mounting clearance. Features a high temperature safety shut-off, gas safety shut-off flame sensor, and an electric spark ignition with self-diagnostic control module, to bring you peace of mind and years of comfortable, safe heat. Comes as natural gas and includes a propane conversion kit. Requires 115-Volt AC power and can be vented vertically or horizontally - please check local codes and restrictions.


  • 400,000 BTU per hour
  • For use with natural gas
  • Heats up to 13,400 sq.ft.
  • Spark ignition features self-diagnostic control module
  • Low Profile Design - Can be installed in low-ceiling buildings
  • Minimum 8-ft clearance from floor to base of heater required
  • 1/2-in gas connection
  • Category 1 vertical, category 3 horizontal venting
  • LP conversion Kit included

Specifications

ModelHSU400NG (F164000)
Weight280 lbs
Input BTU400000
Heating Area (Sq Ft)13400
Electrical Rating110 vac
Gas Inlet Connection1/2in
Gas Inlet Pressure Min3.5in WC
Gas Inlet Pressure Max14in WC
Mounting Height Range8ft - 10ft
Clearance to Combustibles: HorizontalAbove 1in; Behind 18in; Sides 1in
Venting: Length Min/Max3ft - 70ft
Venting: Exhaust6in Diameter
Venting DirectionHorizontal or Vertical
Heat ExchangerAluminized Steel Tubing
Thermostat OptionalSold Separately
Fuel TypeNatural Gas or Propane
IgnitionElectronic
Item Length41.9"
Item Width29.2"
Item Height38.6"
Warranty3 Year Limited

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