Product Detail

Water heaters, gas

The Energy Factor (EF) and Uniform Energy Factor (UEF) measure the efficiency of water heaters. After selecting the size required, choose models with a high EF or UEF, as they are the most efficient.

Note:

Testing standard: CSA P.3-04 for “EF” and CSA P.3-15 for “UEF”

The Minimum Energy Performance Standard (MEPS) formulae are equivalent in terms of energy performance, even though they may result in a different number. This is due to the parameters of the different testing standards.

Models tested using one specific UEF draw pattern cannot be compared to another model of a different UEF draw pattern.

The product models that are displayed in the search results are available in Canada and are covered by Canada's Energy Efficiency Regulations.

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