Greenhouse: Propane heater for greenhouse, 1 by chris1948

chris1948 wrote:
We finished putting our greenhouse together last month and moved all of our plants into it shortly there after. It's 13'LX10'WX8'H and made of Polyethylene Fabric. We're in Central Tx, zone 8a, winter can be rough with temps in the 20s or maybe colder at times. I found a heater at Lowes and 18000BTU that says the maximum heating area is 400sq ft. I know that's about 1/3d of my greenhouse so I was thinking possibly getting two of them. We have all the plants mostly in about 3/4ths of the greenhouse. I've posted a few photos to show what I mean. Does it sound as if this heater would work for us? I also have about 5 layers of weed barrier plus 2" of pea gravel on either side of the patio block walkway.