An insulated soft-wood room and a good heater are the absolute necessities for a sauna.
This heater won't heat up that large room.
He went out with the heater on.
The heater is broken.
Something is wrong with our electric heater.
In Japan solar heat is used more for solar water heaters than for electricity generation.
This heater burns gas.
Our electric heater did not work well.
I went out with the heater on.
Throat and nose membranes hurt by dry air allow cold viruses to enter more easily. It is important to carry out sensible counter plans against the cold with heaters and against the dryness with humidifiers.
Since this heater seems to be out of order, I'll have him repair it.
I'm not using my home heater today.
Don't put the wallet on the top of the heater.
I got cold, so I turned on the heater.
I warned little Mary to leave the kerosene heater alone.
You are expected to put out lamps and heaters before you leave the office.