Mass. Gen. Laws ch. 148, § 25A: Second hand space heaters; unvented space heaters

Section 25A. No person shall sell, offer for sale or install a secondhand space heater, or a secondhand portable stove which uses kerosene, range oil or number 1 fuel oil for fuel. No person shall install or use in a building which is used in whole or in part for human habitation an unvented space heater which uses oil as a fuel. No person shall sell or offer for sale, or install, use or maintain in a building which is used in whole or in part for human habitation, an unvented space heater using natural or propane gas fuel unless the appliance meets the standards for use and installation as promulgated by regulations of the board of fire prevention regulations. Whoever violates this section shall be punished by a fine of not more than $100.