Providing cold weather protection for customers of delivered home heating fuels; requiring heating fuel vendors to annually offer monthly payment agreements for customers unable to pay for the full cost of fuel delivery, specifying certain agreement requirements and options; requiring delivery of a sufficient amount of fuel to customers during the cold weather period, prohibiting the charging of additional fees for the delivery of minimal amounts of fuel during cold weather; requiring vendors to place customers on budget billing plans and to structure payment arrangements to ensure continuous heating service; authorizing refusal to deliver home heating fuel under certain nonpayment conditions, specifying certain notice requirements (mk)