Supplemental heating may be necessary in a cold weather greenhouse, depending on the climate, the crops being grown, and the greenhouse's insulation. In extremely cold regions or during prolonged periods of freezing temperatures, passive solar heating and thermal mass may not be enough to maintain optimal growing conditions.
Supplemental heating ensures that temperatures stay above freezing and creates a consistent environment for sensitive plants or those requiring specific temperature ranges. Options for supplemental heating include electric heaters, propane, or wood stoves, which can be used with thermostats to maintain desired temperatures.
