Saskatchewan's Green Directory Helping Saskatchewan choose a better environment

1. Energy Factor (EF) [i.e. system efficiency: not quite the same as heater efficiency because it takes account of losses other than those incurred in combustion] exceeding 82%. (When a wider range of units becomes available in Saskatchewan, this figure will be raised.)

The list of models complying with this criterion (on the main instantaneous water heaters page) was compiled from our own internet research, and may be incomplete.