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The Master Group sells only in the provinces of Ontario, Quebec and the Maritimes.


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Burners Webster
Automatic Air Density Trim System Temp-a-Trim Webster

Automatic Air Density Trim System
Temp-a-Trim From 420,000 to 200,000,000 BTU

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Features and benefits

The air temperature in your boiler room changes dramatically from day to night and season to season. These changes cause significant combustion inefficiencies and degrade combustion stability. Temp-A-Trim senses combustion air temperature and automatically varies the fan speed to create a constant air flow mass for combustion. By maintaining optimum fuel/air ratios, you are assured that your burner is operating at maximum efficiency.

Temp-A-Trim Features & Benefits

  • Provides fuel savings of up to 3%
  • Electrical savings of up to 30%
  • Reduces emissions due to reduced fuel consumption
  • VFD use provides a soft start for less motor wear and reduced noise level
  • Reduces the need for seasonal burner tune-ups
  • Air density trim control and VFD provide opportunity for energy rebates
  • Easy installation with no special setup or programming required
  • Compatible with linkage or linkageless control systems
  • Available on all sizes of new or existing burners of any brand!


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