It heats really well. It has no moving parts, so it's completely silent. It replaced a gas heater. I prefer this one over the gas heater, because there's no gas leak and it doesn't produce carbon monoxide nor carbon dioxide inside the house which is safer in my opinion. It plugs into a standard power outlet which means it can easily be relocated as required. I only had gas bottles for the gas heater. By the time you factor in the cost of renting cylinders, I haven't found this to be any dearer to run than the gas heater anyway.