Gas Fired Infrared Radiant Tube Heaters

ITH-Series Gas Fired Infrared Heaters – An Overview

All ITH-Series low intensity infrared heaters include a high efficiency reflector to maximize the amount of radiant energy that reaches the floor. Cambridge ITH-Series infrared radiant heaters include a high performance burner with self diagnostic ignition and integral post purge feature for increased reliability. The burner is serviceable from either side while in operation for ease of maintenance.

Specs & Techs

Gas-Fired Infrared Radiant Tube Heater

  • 40,000 to 220,000 Btu/H Ratings
  • 10 to 70 ft. Lengths
  • Natural Gas or Propane

Cost Effective Way to Provide Focused Heat

  • Aircraft Hangars
  • Garages
  • Loading Docks
  • Spot Heating

    Spot Heating


    Infrared Heat Applications

    A cost effective, energy efficient solution for providing focused spot heating within large buildings by using radiant heat. Like the sun, these heaters generate radiant energy that is converted to heat when first absorbed by people, objects in the building and the floor.

    Infrared heaters are often used as a secondary heat source for spot and zone heating small occupied spaces like dock door areas in large facilities. Combination heating systems using Cambridge infrared radiant heaters with larger capacity direct-fired Cambridge Blow-Thru® Space heaters or make-up air heaters can be a cost effective building heating solution for many applications.

    When it comes to heating large open spaces nobody does it better than Cambridge Engineering with our High Temperature Heating and Ventilation (HTHV) equipment. Our 50 years of experience has shown us that heating high bay warehouse and distribution space with infrared technology is not the most cost effective or energy efficient solution available. While Infrared is sometimes mistakenly used to heat large open spaces, we know that using HTHV technology is the better solution. Contact us to talk about why it is better to use HTHV to heat large open space and ITH to spot heat a unique space.

    Features of our Gas Fired Infrared Heaters

    • The industry’s most efficient reflector to maximize the amount of radiant energy that reaches the floor
    • Flexible heater placement provides focused heat where it is most needed
    • Lack of air movement is an advantage in dusty applications
    • Up to 50% energy savings versus indirect gas-fired boiler, unit heater and air turnover heating system

    See All Features & Benefits

    Mounting Options

    General Mounting Installation Overview

    Recommended Mounting Heights

    Suggested minimum mounting heights above the floor for ITH-Series Infrared Radiant Tube Heaters when used in space heating and spot heating applications.


    * Note: It is a common misconception that very high ceilings require the use of high intensity infrared heaters for space heating applications. In fact, both low intensity and high intensity designs send the same amount of radiant energy to the floor. Low intensity heaters do a better job of spreading the radiant energy over a larger floor area. High intensity designs concentrate the heat so you feel it more in spot heating applications.