In the first part of this two-part article series (January 2016, p. 18), I noted that a 5 percent difference in efficiency can mean a difference of thousands of dollars in annual fuel costs. In this article, I’ll offer advice on how to make the best choices relating to boiler or thermal fluid heater efficiency.
Two major components of a boiler or thermal fluid heater impact overall efficiency of the unit. The first is the basic design of the boiler or the heater pressure vessel. (The pressure vessel contains the water in a boiler or the thermal fluid in the oil heater.) The second is the burner.