A system that raises the temperature of a room or building. Confer heater.(noun)
Causing heat.(adjective)
Present participle of heat.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "heating" in a sentence
"Those of you planning to rent at Lake Chapala should make sure heating is adequate in any house you rent and also check for ceiling fans and adequate fresh air ventilation."
"The man who tried to claim for two second homes simultaneously and also claimed for £6000 in heating oil?"
"The EIA forecast a 4 percent increase in heating bills for households using natural gas, which translates to about $27 more for the winter."