HPAC Magazine

New Requirements for Residential Boilers to Come into Effect in Canada

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July 27, 2012

In October 2011, Natural Resources Canada (NRCan) published Amendment 11 to the Energy Efficiency Regulations in the Canada Gazette Part II. Affected products include residential gas, oil and electric boilers with an input rate of less than 88 kilowatts (300,000 Btu/h). The amended regulations introduce prescriptive requirements in addition to strengthening the minimum energy performance standards. One critical prescriptive requirement involves an automatic means for adjusting water temperature. All gas, oil and electric hot water residential boilers must adjust the temperature of the water supplied by the boiler to ensure that an incremental change in inferred heat load produces a corresponding incremental change in temperature of the water supplied. In particular, a boiler for which an automatic means for adjusting water temperature is required shall be operable only when the automatic means is installed. All gas, oil-fired and electric hot water boilers that have their manufacturing process completed on or after September 1, 2012, will be required to meet the prescriptive requirement of an automatic means of adjusting water temperature. For more information contact David Terlizzi at HRAI, tel. 800-267-2231, ext 263. (from the Associate’s Link)