If you employ greenhouse heaters make sure they are in optimal working condition.
Does your greenhouse heater still work? Now is a good time to get electric or gas heaters serviced if necessary!
You want to heat a hoop house or a small greenhouse? You could try to heat with Christmas lights: http://bit.ly/wJBxRt
Check if your greenhouse heater is functioning! But why should a gardener have a greenhouse? Some reasons: http://bit.ly/sCRA48
You can probably put away the greenhouse heater: but remember that temperatures can still drop at night.
Check that greenhouse heaters are functioning properly: Invest in a thermometer to monitor the temperature.
Check that the greenhouse heater is still working: Get electric or gas heaters serviced if necessary.