This is my third unit. We do not use the unit often but works well. The first and second units lasted about 2 to 3 years with lite use and the casing cracks and leaks. The second unit split on the bottom of the case. Taking them apart it looks like the lack of insulation is the problem. The inside hose gets stressed and fails. This will be the last unit We purchase unless they are redesigned. Gets expensive for a product that gets little to moderate use.....too bad. Runs a lot and is noisy.