I am from the impression which the code only addresses gas fired appliances straight no matter if This can be the intent or not. I use R104.11 Alternative elements, style and ways of construction and devices to reference IFC 312. Specially this sentence: Compliance with the specific overall performance-dependent provisions https://garage-smart-lifts36924.ouyawiki.com/1449404/the_smart_trick_of_smarter_home_lift_that_nobody_is_discussing