Patio Comfort heaters is an AEI Exclusive product line. We designed the line and it is an excellent "medium duty" heater that is better than any other heater available today with the exception of Sunglo. Patio Comfort has a heavy duty 400 series stainless steel burner, one-piece anodized aluminum reflector, commercial grade emitter grid, piezo ignition, brass valves, and wheel kits are included. Most importantly, we fully stock replacement parts, which are hard to find with "other" medium to low duty patio heaters.