N.Y. Multiple Dwelling Law § 302-C
1. Any tenant acting alone or together with other tenants of a multiple dwelling employing an oil fired heating device for which the owner is responsible and wherein there exists a lack of heat due to the owner's failure to have oil supplied to the premises, may contract and pay for the delivery of such oil in accordance with the provisions of this section. Any payment so made shall be deductible from rent providing the following provisions have been substantially complied with by the tenant or someone acting on his behalf: a. Reasonable efforts were made to contact the owner or his agent to inform the owner of such failure to supply oil. b. Reasonable efforts were made to have the normal fuel supplier to the premises deliver the requested fuel. c. Delivery of fuel oil to the premises was secured from a fuel supplier regularly engaged in such business at a price within the range of prices listed by the department in the index provided for in subdivision three of this section. d. The fuel supplier from whom oil is secured provided a written statement containing the following: