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.
$267.00
$267.00
$255.00
$279.00
$412.00
$279.00
$175.00
$298.00
$445.00
$100.00