Assertion: boiler | /r/HasProperty | controllable furnace
Facets:
value: easily
type: MANNER
Source sentences:
text: The basic idea of central heating is really simple: you have a boiler (an easily controllable furnace, fueled by gas) in a handy place like your kitchen or bathroom and it uses water, moved by an electrically powered pump , to carry heat into radiators in all the other rooms.