1) Boiling 2) Calefaction 3) Calefactive 4) Calefactory 5) Hot 6) Melt 7) Overheating 8) Thaw 9) Thawing 1) Calefactive 2) Calefactory 3) Furnace work 4) Kind of pad 5) Utility to warm a building 6) Winter expense 7) Wintertime concern 
• (p. pr. & vb. n.) of Heat • (a.) That heats or imparts heat; promoting warmth or heat; exciting action; stimulating; as, heating medicines or applications.
process and system of raising the temperature of an enclosed space for the primary purpose of ensuring the comfort of the occupants. By regulating ... [7 related articles]
process of supplying heat into an entity to raise or maintain its temperature
That heats or imparts heat; promoting warmth or heat; exciting action; stimulating; as, heating medicines or applications. Heating surface, the aggregate surface exposed to fire or to the heated products of combustion, especially. Of all the plates or sheets that are exposed to water on their opposite surfaces. ... Synonym: fire surface. ... Source...
Heat'ing (hēt'ĭng) adjective That heats or imparts heat; promoting warmth or heat; exciting action; stimulating; as, heating medicines or applications. Heating surface (Steam Boilers) , 
Temperature rises as hay or fodder ferments, dries, or cures
[n] - the process of becoming warmer