Ontario Regulation 557/21 made under the Electricity Act, 1998 Made: July 29, 2021 Filed: August 4, 2021 Published on e-Laws: August 4, 2021 Printed in The Ontario Gazette: August 21, 2021 Amending O. Reg. 509/18 (ENERGY AND WATER EFFICIENCY - APPLIANCES AND PRODUCTS) 1. (1) Subparagraph 28 i of section 1 of Schedule 3 to Ontario Regulation 509/18 is amended by striking out “or later” at the end and substituting “to August 4, 2021 inclusive”. (2) Section 1 of Schedule 3 to the Regulation is amended by adding the following paragraphs: 28.1  Fireplace, gas, vented: i.  Date of manufacture: August 5, 2021 to June 30, 2022 inclusive. ii.  Testing standard: CAN/CSA P.4.1-15, Testing Method for Measuring Annual Fireplace Efficiency. iii.  Scope of application: the same scope as the testing standard. iv.  Prescribed efficiency standard or requirement: for a fireplace certified to ANSI Z21.88/CSA 2.33, Vented gas fireplace heaters, fireplace efficiency ≥ 50 per cent. 28.2  Fireplace, gas, vented: i.  Date of manufacture: July 1, 2022 or later. ii.  Testing standard: CAN/CSA P.4.1-15, Testing Method for Measuring Annual Fireplace Efficiency. iii.  Scope of application: the same scope as the testing standard. iv.  Prescribed efficiency standard or requirement: no standing pilot and for a fireplace certified to ANSI Z21.88/CSA 2.33, Vented gas fireplace heaters, fireplace efficiency ≥ 50 per cent. Commencement 2. This Regulation comes into force on the day it is filed.