Hot water supply boiler

Hot water supply boiler means a packaged boiler (defined in 431.82 of this part) that is industrial equipment and that:
(1) Has a rated input from 300,000 Btu/h to 12,500,000 Btu/h and of at least 4,000 Btu/h per gallon of stored water;
(2) Is suitable for heating potable water; and
(3) Meets either or both of the following conditions:
(i) It has the temperature and pressure controls necessary for heating potable water for purposes other than space heating; or
(ii) The manufacturer's product literature, product markings, product marketing, or product installation and operation instructions indicate that the boiler's intended uses include heating potable water for purposes other than space heating.

Source

10 CFR § 431.102

Scoping language

The following definitions apply for purposes of this subpart G, and of subparts J through M of this part. Any words or terms not defined in this section or elsewhere in this part shall be defined as provided in section 340 of the Act, 42 U.S.C. 6311.