jwmahloch

I built a greenhouse this fall (I bought a kit from the greenhouse megastore). Its 8ft long, 6ft wide and 7 feet tall. I have a 1500 watt electric heater inside the greenhouse hooked up to a thermistat that I normally keep set around 58 degrees. Until today the electric heater alone has been enough to keep it above 55 at night. Today is the coldest weather we have had this winter so far. Its 17 degrees now and the wind was up to 40 mpr today, low of 15 tonight here in St louis.

Today when I got home from work I noticed the temp droping inside the greenhouse to 51 degrees. then I remembered that I bought a kerosene heater to use in case of a power outage. So I decided to see if it would help supplement the electric heater that apparently cant keep the temp consistant. This was my first time ever using a kerosene heater. When I lit the heater and put it in the greenhouse a few minutes later it was very smokey inside. Then I read about how to use the heater, problem was I had the wick too high. After I lowered the wick the smoke was gone and now its 58 degrees inside. So the problem is solved. On nights that drop below about 25 degrees or so I will use the kerosene heater in addition to the electric heater.

Has anyone else had experience with heating a greenhouse when the outdoor temp drops below 20 degrees?

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Jeremy