RSA 158:28 Sale or Installation of Heaters.

I. For the purposes of this section, "unvented space heater" means any heating appliance, either wick, wickless, or pot burner type, which uses oil, gas, or kerosene for fuel, is either stationary or portable, and the products of combustion of which are not directly conducted to the outside of the building via a chimney connector pipe.
II. No person shall sell, offer for sale, install, or operate an unvented space heater that does not comply with the standards established pursuant to this section. Nothing in this section shall prevent the sale, installation, or use of:
(a) Flameless catalyst type heaters; or
(b) Unvented space heaters used as antiques or curios, provided they are rendered inoperative.
III. The commissioner of safety shall adopt rules, pursuan