Artificial Heating in Greenhouses

Overview

There are many options for artificial heating in home and commercial greenhouses. Depending on location, cost, and personal preference the greenhouse grower can select the right artificial heat source for cold season maintenance.

Electric Systems

An electric heater is a clean and efficient way to maintain heat in greenhouses. A typical house heater will not work, but a higher voltage, such as a 220-volt heater, will work fine in a greenhouse.

Gas and Oil

Gas and oil are also good choices for greenhouse heat needs. One important consideration is that gases from these heat sources must be properly vented outside the green house so that they do not harm plants.

Wood

Wood fired systems are another consideration for artificial heat in greenhouses. Wood burning systems can provide a large amount of radiant heat but may be more of a challenge for temperature regulation.

Prevention/Solution

It is important to check insulation and joints in greenhouse glass or plastic to ensure that heat is not escaping through any holes in the structure. Maintaining a well-insulated greenhouse can significantly lower heating energy needs.

Tips

Adding weather stripping to door frames and caulk to window joints can ensure proper heating in a greenhouse. A clean greenhouse exterior also allows more solar heat to enter reducing the need for artificial heating.

References

  • West Virginia University: Planning and Building and Greenhouse
  • University of Florida: Greenhouse Heating Checklist
Keywords: greenhouse heat, greenhouse growing, greenhouse temperature
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