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Timmie McElwain
timmymcelwain
Timmie M. McElwain, is President of Gas Appliance Service, which provides training and consulting for those servicing gas combustion equipment. He is one of the top experts in gas-fired heating and water heating and has over 50 years experience in the industry, including 28 with a New England utility. He is a certified instructor and test proctor for the Propane Gas Association in their CETP program and has written numerous articles and texts on gas service.
Articles by timmymcelwain
There are not a lot of differences between gas and oil hydronics. The obvious one is the burners and fuels are different. The controls, however, are typically the same with some exceptions. I want to,…
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We finished up April’s article addressing Combustion. So far, we have covered the “Meaning of Combustion,” “The Requirements for Combustion,” and the “Chemistry of Combustion”. Still, after many years of working in the heating industry,…
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As we continue in our familiarization with Propane and Natural Gas, we must realize that with both fuels, the characteristics of the flame are important to safe and efficient operation of all appliances using the…
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I am sorry to report that conversions to gas continue to climb in many cases, just for the sake of cost of fuel. That, in my estimation and experience, is not the primary reason customers…
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Editor’s Introduction Timmie McElwain has been working in the gas industry for over half a century and has been training service technicians in the service of gas heating appliances nationwide. In 1994, he founded Gas…
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