I am a landlord in NJ. I own a 2 family house with tenants on the 2nd floor. I provide heat and hot water to them. With the price of fuel oil going through the roof, I am looking to cut back on their heat but without breaking the law. Therefore, what is the lowest temperature I'm allowed, by law, to set my thermostat at for my tenants heat during the winter months? I believe there are two different settings required by law; one for at night and one for day. Thank you.What is the name of your state (only U.S. law)?