What is another word for hot-air furnace?
Pronunciation: [hˈɒtˈe͡ə fˈɜːnɪs] (IPA) 
A hot-air furnace, sometimes referred to as a forced-air furnace, is a heating system that utilizes a central unit to circulate warm air throughout a building or home. This type of furnace is commonly used in homes, and often synonymous with other types of heating systems such as central heating. Some other synonyms for hot-air furnace include air heating system, HVAC system, central forced air heating, and warm-air heating system. These synonyms all refer to the same type of heating system that relies on a central unit to distribute warm air throughout a building or home, ensuring comfortable temperatures during the colder months.
