Gas Water Heaters; Volume III - Storage Water Heaters with Input Ratings Above 75,000 Btu per Hour, Circulating and Instantaneous Third Edition; CSA 4.3-2004
Gas Water Heaters; Volume III - Storage Water Heaters with Input Ratings Above 75,000 Btu per Hour, Circulating and Instantaneous Third Edition; CSA 4.3-2004