This company will not even return calls ....I've even left messages with a owner on his private phone which he was more than happy to furnish when selling units ......after its purchased however , different story .... 2 months into it I've had the unit fail 3 times only to have the tech each time tell me the previous tech didn't set it up correctly ........now I've had the ceiling fall in to to the " triple shutoff system " that they bragged about fail ....the tech said , on recording that the one system was laying on the floor never installed , the second installed upside down and the third not wired correctly ......was told by the techs to not worry the company would make good on it .......well needless to say I've yet to hear form any of them and this it appears will be going via a lawsuit and now what could have been a simple repair is going to get expensive ...........I've learned a valuable lesson but I never lose