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FREE SHIPPING   |    1-844-440-4014   |    LEASING   |   Open: 9-5:30 Monday to Friday

Mr Heater MH45GSP 10' Lo Intensity Natural Gas Radiant Tube Heater System

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This Mr. Heater Workshop Tube Heater is an indoor and outdoor heating solution, providing uniform radiant heat using a compact 3in. aluminized steel U-tube design. Check all local codes and restrictions before installation. Venting required for clean and safe operation.


  • 45,000 BTU
  • Heats Up to 1,125 Sq. Ft.
  • Ships pre-assembled for simple installation
  • Provides uniform heat distribution
  • Compact aluminized steel U-tube design
  • 4” venting connections
  • Polished aluminum deep-dish reflector
  • Commercial approved
  • Indoor / outdoor approved with proper ventilation
  • Ships as natural gas
    • includes propane conversion kit


  • Power: 45,000 BTU/hr (13.2 kw)
  • Voltage: 120V
  • Electrical Connection: 3 pin molded plug
  • Gas Inlet
    • Connection: 1/2 Male NPT
      • Pressure for Natural Gas:
        • Minimum: 5.0" W.C. (1.25 kPa)
        • Maximum: 11.0" W.C. (2.74 kPa)
      • Pressure for LPG (Propane):
        • Minimum: 11.0" W.C. (2.74 kPa)
        • Maximum: 13.0" W.C. (3.24 kPa)
  • Manifold Pressure:
    • Natural Gas: 4.0" W.C (1 kPa)
    • LPG (Propane): 10.0" W.C. (2.49 kPa)

  • Venting Specifications
  • Air Intake/Venting Pipe Requirements:
    • Minimum Length: 3' (0.91m)
    • Maximum Length: 25' (7.62m)
    • Intake Pipe Diameter: 3.0" (3.62cm)
    • Vent Pipe Diameter: 4.0" (10.16cm)


This product qualifies for Free Shipping. There are no minimum purchase requirements or hidden fees. The price you see is the price you pay, without any surprises at checkout.

Quality assurance is our top priority. Before any item leaves our warehouse, it undergoes a Complimentary Pre-Inspection. This process ensures that what you receive is exactly what you ordered, in perfect condition.

Time is precious, and we respect yours. Our Unparalleled Speed in processing and shipping orders means you won't have to wait long for your purchase. Our efficient logistics team works tirelessly to ensure that your order is dispatched promptly and arrives well within the estimated delivery time of 3-5 Days.

Above all, we prioritize your Peace of Mind. From secure packaging to reliable delivery partners, every step of the shipping process is designed to ensure your order reaches you safely and without any hassle. Plus, our customer service team is always here to help with any questions or concerns, providing you with a worry-free shopping experience.


At HOC, we meticulously select our dealers from a pool of globally renowned entities, ensuring that we offer only the best to you. Our commitment to excellence is further reflected in our offering of the most Comprehensive Warranty Periods among equipment dealers across North America.

This approach allows you to make your selection with a sense of confidence and assurance, knowing well that your purchase is under the protection of a warranty that's as steadfast and dependable as the product itself. We invite you to experience the peace of mind and trust that come with choosing HOC, where your satisfaction and security are our topmost priorities.

To view the specific warranty period applicable to this product, and to delve into the details of your protection, please click the link below.

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Mr Heater MH45GSP 10' Lo Intensity Natural Gas Radiant Tube Heater System

Mr Heater MH45GSP 10' Lo Intensity Natural Gas Radiant Tube Heater System