I bought a bunch of MR-10 Lexan, fired up the welder, and scrounged some aluminum and mild steel....and now have a nice. cozy enclosed ROPS on my 751. From selling out an auto parts store I had in a prior life, I've go a (New in the Olde Box) 12v electric heater....supposedly 500 watt....says max. amp draw is 25 amps. I've done everything but stand on my head trying to find markings on my machine's alternator to no avail. Anyone out there that could enlighten me on this would be greatly appreciated. Sure seems easier than plumbing in a hot water one... Thanks! Jim