Add Yahoo as a preferred source to see more of our stories on Google. The white cap on the side of the radiator serves a specific function. Photo: myHOMEBOOK Winter is the season when you use heating.

Winter is the season when you use heating. To keep rooms cozy and warm on cold days, radiators should be dusted at least once a year, preferably twice. Some radiators have a discreet, white cap on the ...

Caps on motor oil bottles, pop bottles and beer bottles keep the liquid in. But a radiator cap is not any ordinary cap. Though it seals the cooling system from the outside, the radiator cap is ...