The separate houses sometimes have steam-heating, but not often.
A steam-heating system consists of a boiler, a fire pot, pipes from the boiler leading to the radiators, and radiators (Fig. 35).
What care should be taken in managing a steam-heating system?
For such a hulk as the Prince looked to be, the steam-heating plant was in excellent order.
They are fitted with a strong bottom hoop and bands round the sides, and can be double-jacketed for steam-heating if required.
They will not even give us coal for steam-heating--I arrived here.
A safety valve (Fig. 36) is attached to steam-heating systems instead of an expansion tank.
The same company has a steam-heating plant, and pipes have been laid in the principal streets for this service.
Some steam-heating systems have a check valve in the pipe which returns water to the boiler.
Patents were also taken out by others in England for steam-heating apparatuses during the latter part of the 18th century.