Sustainable Living: 3M FuturewiseTown PlanIntroductionGo BackGo Next3M

Inside the classroom

Back Inside the classroom

1. Radiator

The radiators are painted white but white is
poor at giving out (emitting) heat. If the radiators
were painted matt black they would be better at
radiating heat.

However, if hot water passed through a large
circuit of black radiators, the first radiators in the
circuit could emit all the heat from the water
inside and the radiators at the end of
the circuit would be cold.