A heater is a machine or tool that makes a place warm. People use it when the weather is cold to feel warm inside.
The heater warms the cold room quickly.
Turn on the heater in winter.
In some engines, a heater warms the fuel before use. This helps the engine start better in cold weather.
The diesel heater helps start the car engine.
Check the heater in the fuel system.
In ice hockey, a 'heater' is a player who scores goals fast and often. It is a positive term for a skilled scorer.
He is a heater on the hockey team.
The heater scored three goals today.
In science or industry, a heater is a tool that warms liquids or gases. It is used in labs or machines for special jobs.
The lab heater warms the chemical solution.
Use the heater to boil the water safely.
In baseball slang, a 'heater' is a very fast pitch thrown by the pitcher. It is often hard to hit because of its speed.
The pitcher threw a heater at 95 mph.
He hit the heater out of the park.
In building work, a heater is used to keep materials warm. This helps to stop freezing and make work easier in cold weather.
The heater keeps the cement warm outside.
Use a heater on cold building sites.