Electricity, kerosene, and natural gas are other sources of heat for greenhouses.
The tubes are filled with either air or a fluid like propylene glycol or methyl alcohol.
Air-filled heating systems can even work in reverse.
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In summer, they draw colder air from the earth to cool down the greenhouse.
Heaters can be powered by 120V household current or by solar panels.
Forced air heaters quickly get warm air moving during sudden cold spikes.
IR greenhouse heating can save up to 30 percent fuel cost over other energy sources.These systems are very economical.
Kerosene heaters used in greenhouses must be vented.
Heating units are usually suspended near the ceiling so that they can be vented.
A low-pressure gas line must be brought over from the home through trenches.
Store built-up daytime heat in thermal mass devices like water jugs or bricks.
The devices radiate heat as the temperatures cool.
For a longer-term solution, consider installingthermal insulated polycarbonate panels.
Growing Indoor Plants With Success.
University of Georgia Extension.
Geothermal Heat for Greenhouses.
U.S. Department of Agriculture Extension Foundation.
Dealing with the High Cost of Energy for Greenhouse Operations.
1, 2023, pp.
127-133. doi:10.21273/HORTSCI16888-22
Hobby Greenhouses.
University of Georgia Extension.
