not to steal the thread but where are the tech questions in the tech form? I've worked on these things for 10 years cali to atl. and back again there's no tech threads here..... questions are free.... knowledgeable answers......motors, pumps, air cooled, water cooled, blower size, exhaust divert, hot water by-pass, blower exhaust heat exchangers, inlet vs. outlet 1 1/2 to 2 comparisons.... I just thought tech would be tech not "how do I clean a microfiber?" It's polyester man you really can't hurt it... unlike your machine that needs love and care. That is what makes you money not the knowledge.... without the machine all you have is.....phone numbers and your hand.....