Heating
Heat is essential for all greenhouses. If you don’t have heat or proper insulation you may run the risk of losing your crop. Most contractors will provide you with a free estimate for their services, should you decide to run utilities out to your new greenhouse.
Solar kits are sold for greenhouses and can be costly at first, but you won’t have an electric bill once installed and you’ll never have outages. Some plants do better in winter than others, for those that don’t, make sure you have grow lights.
Cooling
During summer months you’ll need to increase ventilation and will probably need fans. If you decided to go solar you can power special greenhouse fans this way. You can also get special shades to help lower the temperature inside the greenhouse. Most of the smaller greenhouses have one or two large vents or windows you can prop open.