any self-contained appliance for heating an enclosed space.
| 单词 | θ71955 | 
| 释义 | the world > matter > properties of materials > temperature > heat > heating or making hot > that which or one who heats > 			[noun]		 > a device for heating or warming > devices for heating buildings, rooms, etc. (234)		 space heater1913 any self-contained appliance for heating an enclosed space. background heater1939 background heater (see quot. 1961), background heating. Subcategories:— 			hypocaust			(1)		 — 			gas or electric heater			(2)		 — 			operated by stored heat			(6)		 — 			mounted on wall			(3)		 — 			operating by convection			(1)		 — 			having an electric fan			(1)		 — 			radiator			(4)		 — 			stove			(39)		 — 			hearth or fireplace			(118)		 — 			chimney			(52)		 — 			passage for smoke			(1)		 — 			smoke-hole			(4)		  | 
	
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