This is a great product, it heats up my whole garage very comfortably in a matter of 15-20 mins. I love it. In addition, the customer service at Air-n-Water is fantastic. If you are lucky enough to talk to Mary B, you will find a person with a wonderful attitude and friendliness who makes things happen fast. I did not have to wait long for an email response after our pleasant phone discussion. If everyone was like her, companies everywhere would be pleasing more customers and making more money. Thanks Mary B!