Details test and examination criteria for unvented heaters for use with natural, manufactured and mixed gases, liquefied petroleum gases, and LP gas-air mixtures. Such heaters are limited to Maximum input ratings of 40,000 Btu per hour.
CSA ANSI Z21.11.2-2002
Original price was: $557.00.$278.00Current price is: $278.00.
Gas-Fired Room Heaters – Volume II, Unvented Room Heaters
CSA Group , 10/17/2002