With 4-5 hours of sunlight on average per day your Growing Dome® Classic Kit with the 5-wall polycarbonate glazing panels will typically stay 30 degrees F above the outside temperature over night. What this means is that on very cold nights (below zero) and/or after a series of cloudy cold days you may need to supplement with some form of additional heat.
There are a number of options for heating your Growing Dome including some net-zero options. We'll start with the most conventional here and go to the more eco-friendly options:
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