We overwinter our tropical houseplants that generally stay outside during the spring, summer and fall months. We have lime and lemon trees, dwart palms, as well as we overwinter all of our homegrown herbs in the greenhouse.
Even in minus outside temperatures, on a sunny day the inside of the greenhouse is toasty warm. Last years production maximized my yield and allowed me to automate my watering protocol.
So far for the 3 years I have had this product there has virtually been no maintenance to the actual structure. I can't wait to get back into my greenhouse and start planting this year!