11. It is a requirement that there is an installed heat or cool-air source:

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11. It is a requirement that there is an installed heat or cool-air source:
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HEAT IS REQUIRED HEAT IS REQUIRED Yes There is a requirement for a heating system that meets safety and health requirements, but no requirement for air conditioning. meating must be able to maintain healful and stable heat heating must be adequate for heathful & comfortable living conditions to include a permanently installed heating system to maintain a temp of at least 50 degrees. yes in each room of the home. heat source only, unless in areas where cool air is a necessity for life heating must be adequate for heathful & comfortable living conditions to include a permanently installed heating system to maintain a temp of at least 50 degrees. in order to maintain a 50 degree temp.