When the temperature of the air passing through the radiator rises, the heat alerts a bimetal coil spring to &quot;uncoil&quot; or expand.
(the air; passing; through the radiator) (the temperature of the air; rises; ) (the heat; alerts; a bimetal coil spring; to; T:When the temperature of the air passing through the radiator rises)
the air the temperature of the air the heat
passing rises alerts
through the radiator
a bimetal coil spring to T:When the temperature of the air passing through the radiator rises