I have seen this specific brand of hot box a few times and am trying to figure out what kind it is. It looks compact and its all stainless. It does not look like a hot water machine minus the motor. If I remember correctly it has a fuel tank on the bottom and then a stainless coil laying horizontal on top of it. Thats all I can really remember about it but if anyone happens to know which brand I may have seen, will you please let me know? If anyone knows of another brand that is compact and nice quality please also let me know about it. Thanks, Chris