VIVOSUN Portable Greenhouse Heater with Adjustable Thermostat, 750W/1500W Electric Heater, 3 Modes for Fast Heating, Overheat Protection, Dustproof Design for Grow Tents, Patios & Outdoors 750W/1500W Heater with Thermostat is up for auction in Patio, Lawn & Garden. The current bid is $5.00, 95% below the $99.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.