Section 12.3 — Energy Efficiency for Buildings of

(1) This Section applies to the energy efficiency of a building or part of a building of residential occupancy that is within the scope of Part 9 and is intended for occupancy on a continuing basis during the winter months.

(1) The energy rating and the overall coefficient of heat transfer required for windows and sliding glass doors shall be determined in conformance with (a) CSA A440.2, “Fenestration Energy Performance,” or (b) NFRC 100, “Procedure for Determining Fenestration Product U-factors” and NFRC 200, “Procedure for Determining Fenestration Product Solar Heat Gain Coefficient and Visible Transmittance at Normal Incidence.”

(1) Except as provided in Sentence (3) and except where space heating energy is provided by a solid fuel-burning appliance or a ground source heat pump, (a) heating system in an individual dwelling unit shall be controlled by at least one programmable thermostatic control device located in the dwelling unit, and (b) where a house contains a secondary suite, each dwelling unit shall be controlled by at least one programmable thermostatic control device located in the dwelling unit. (2) The programmable thermostatic control device required in Sentence (1) shall (a) allow the setting of different air temperatures for at least (i) four time periods per day, and (ii) two different day-types per week, (b) include a manual override, and (c) allow the setting of the air temperature to (i) 13°C or lower in heating mode, and (ii) 29°C or higher in cooling mode, where air-conditioning is provided. (3) A manual thermostatic control device is permitted if it (a) controls a heating or cooling system where the heating or cooling capacity is not more than 2 kW, or (b) serves an individual room or space.

(1) Hot water pipes that are vertically connected to a hot water storage tank shall have heat traps on both inlet and outlet piping as close as practical to the tank, except where the tank (a) has an integral heat trap, or (b) serves a recirculating system. (2) The first 2.5 m of hot water outlet piping of a hot water storage tank serving a non-recirculating system shall be insulated to provide a thermal resistance of not less than RSI 0.62. (3) The inlet pipe of a hot water storage tank between the heat trap and the tank serving a non-recirculating system shall be insulated to provide a thermal resistance of not less than RSI 0.62.

(1) A furnace serving an individual dwelling unit in a house shall be equipped with a brushless direct current motor. (See Note A-12.3.1.5.(1))

(1) In order to supply energy to cooking appliances and clothes dryers, every kitchen and laundry space shall be provided with (a) an electrical outlet, (b) a natural gas line, or (c) a propane line.