Certification Standards in North America for Gas Boilers and Water Heaters. John Gorman – Technical Advisor – CSA International. AGENDA. General Issues Boiler Standards in North America Water Heater Standards in North America Installation Codes Gases used in North America
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John Gorman – Technical Advisor – CSA International
Natural Gas – 7.0 inches w.c. (17.4 mbar)
LPG – 11.0 inches w.c. (27.6 mbar)
Additional tests are conducted at reduced and increased inlet pressures
Efficiency requirements for boilers are different for the United States and Canada.
Efficiencies of water heaters are treated differently for the United States and Canada.
Combination water heater/boiler Water Heaters
Secondary Heat Exchanger for potable water
Primary Heat Exchanger w/burner
Space Heating water inlet and outlet
Potable water inlet and outletCombination Water Heaters/Boilers