The heating of a greenhouse is traditionally done by using a central gas boiler which heats water that is distributed into the greenhouse.
Central heating system in greenhouse.
Greenhouse central heating systems central heat systems for greenhouses consists of a central boiler.
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The hot water or steam heats the pipes which in turn give off the heat to the air in the greenhouse distribution pipes are discussed in more detail under heat distribution.
This radiant heating method works on the same principal as the average central heating installations in homes.
Most central heating systems use steel copper or aluminum pipes to distribute hot water through the greenhouse.
These systems typically incorporate a heat mass that can absorb the heat and then give it off to the surrounding area.
Boilers are pressure vessels designed to heat water or produce steam which can then be used to provide space heating and or service water heating to a building.
Most systems will use rocks or water for the heat mass.
There are active and passive solar greenhouse heating systems that you can implement for your greenhouse.
Both gas and oil fired boilers use controlled combustion of the fuel to heat water.
Local heating systems are usually placed at one end of the greenhouse.