The metal fins on the outside of the hot water pipes radiate heat into the room.
Mainly by burning wood or coal, but also there were the water/steam heated radiators.
In a steam heating system, the pipes transport steam or water vapor to the radiators to heat the building. Insulating the pipes reduces the amount of heat lost to the surrounding environment. Any heat lost in the pipes cannot be used to heat the radiators, and causes the system to be less energy efficient.
Homes may be heated with any of several kinds of heating systems. These include:Radiant heat from electric radiators,Radiant heat from steam or hot water circulated through radiators and heated with gas, propane, oil or coal fired boilers,Hot air circulated through the home and heated by gas, propane or oil fired furnaces,Solar heating systemsWood or coal burning fireplaces.
Radiators transfer heat by electromagnetic waves. The sun waves/rays send electromagnetic waves.
Other wise heat loss will occur and the radiators wont be as hot.
Other wise heat loss will occur and the radiators wont be as hot.
Radiators produce heat.
Steam RadiatorsElectric RadiatorsTraditional radiators are powered by steam or hot water. Aboiler in the basement of a building heats pressurized water to an extremely high temperature, turning it into steam. As the water turns into a gas, it expands and becomes less dense, which causes it to flow up through steam tubes into radiators in the building. As the water flows through tubes inside the metal radiators, some of its heat is transferred into the metal. This gives the radiator the heat it needs to warm the room and cools the water, which then flows back to the boiler to be heated again.Electric radiators are powered by a heating element. Heating elements are actually specialized resistors--devices that resist the flow of electricity. When electric energy flows into a resistor, it is turned into heat. The heating element in a radiator is usually suspended in oil, which conducts the heat away from the element. The heat then flows out into the metal body of the radiator and from there, into the room.
Usually by being used to heat a steam heating system.
Steam heat normal Hot water perhaps air in lines and need to be purged
Electricity and steam. In some locations the steam is used to heat homes and businesses.
radiators need to dissapate heat, and metal can dissapate heat quickly