Is my boiler ok? everytime it goes on for hot hose or the central heat, i...

everytime it goes on for hot hose or the central heat, i notice plentifully and i mean a remarkably lot of steam coming out of it, i can see this when im looking out of my back windowpane
Answers:    yeah its fine, i have lately had untried central heat put in ( 5 days ago ) and mine does that , it is without blemish normal, you merely notice it more as it is cold outside.
yes depending on what trademark it is,is it a new boiler?