Factory Direct Sale via eBay offers the Goplus 41,000-BTU Stainless Steel Propane Patio Heater in four colors (Black pictured) for $90 with free shipping. That's $4 under our Cyber Monday mention of a similar heater and $48 under the lowest total price we could find for such a heater today. It features a safety tilt shut-off valve, stainless steel housing, and up to 175-square-foot heating area.