Commercial Heating Systems Industrial Heating

  • purchasing energy-efficient commercial boilers
  • purchasing energy-efficient commercial boilers
  • purchasing energy-efficient commercial boilers
  • purchasing energy-efficient commercial boilers

Purchasing Energy-Efficient Residential Gas Boilers

Commercial Boilers Products Energy Star

Updating Purchasing Specifications for Energy-Efficient

Commercial heating and hot water knowledge articles

  • Are commercial boilers Energy Star certified?
  • Commercial boilers originally qualified for the ENERGY STAR label in December, 2016. ENERGY STAR certified commercial boilers have a thermal efficiency of ≥ 94.0% and a turndown ratio of ≥ 5:1. They use 14 percent less energy than a standard model.
  • Are electric boilers 100% efficient?
  • Some electric boilers are labelled 100% efficient because they convert all energy into heat without producing any waste. The maximum efficiency of gas boilers is usually up to 94%. There are some exceptions, like the Vitodens 200-W, with its impressive 98% efficiency rating
  • What is the best combi boiler?
  • The Viessmann Vitodens 050-w combi boiler is our first pick for energy efficiency. It’s one of the best combi boilers on the market, too, especially in terms of value for money. Running at 92% energy efficiency, the Vitodens 050-w combi comes with a stainless steel heat exchanger, so it’s not only efficient but also built to last.
  • How efficient is a commercial boiler?
  • Efficiency of a commercial boiler is closely tied to the return water temperature. If you are considering using condensing boilers, the return water temperature needs to be lower than 130°F. If the return water temperature is higher than 130°F, flue gases will not condense and the condensing boiler will not perform as expected.
  • What is a good reference for boiler efficiency?
  • The references widely cited for boiler efficiency levels are the U.S. Department of Energy (DOE) Federal Energy Management Program (FEMP) efficiency requirements, ASHRAE Standard 90.1, and ASHRAE Standard 189.1. As a preliminary reference, the table below gives a comparison of boiler efficiencies across these three references.
  • What is the most efficient gas boiler?
  • Viessmann Vitodens 200-W With an impressive 98% efficiency rating, the Viessmann Vitodens 200-W is probably the most efficient gas boiler designed for larger homes. The 200-W comes with a MatriX cylinder burner and a combustion controller, which work together to enhance energy efficiency and reduce maintenance costs.