I have a contractor ready to install a central heater (Goodman 45,000 size) in my attic. But he warned me that the inspector may say that there is not enough height in the attic for servicing. He asked me to sign that he is not responsible to provide the required service clearance.
1. How much room is needed to service a heater?
2. Is there a different heater type or brand that would be smaller?