Greenhouse Heater with Thermostat, 1500W Electric Outdoor Heaters for Patio, Overheat Protection, Fast Heating, IPX4 Waterproof, Green House Heaters for Plants, Grow Tent, Outdoor, Yellow is up for auction in Patio, Lawn & Garden. The current bid is $20.00, 80% below the $99.99 MSRP, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.