1.1 Scope 1.
1.1 This standard applies to newly produced, self-contained, infra-red heaters (hereinafter referred to as “”heaters””) with inputs up to and including 400 000 Btuh (117.23 kW) constructed entirely of new, unused parts and materials, and designed for use with: (a) natural gas, (b) propane, or (c) either na
1.1 This standard applies to newly produced, self-contained, infra-red heaters (hereinafter referred to as “”heaters””) with inputs up to and including 400 000 Btuh (117.23 kW) constructed entirely of new, unused parts and materials, and designed for use with: (a) natural gas, (b) propane, or (c) either na