I have a Class C motorhome with a built in Onan 4k generator. I've had the Carbon Monoxide Alarm go off in the middle of the night with the furnace on. Freaked us the f**k out!! It isn't an issue running AC bc fresh air is being pushed in, but the furnace uses the air already in the motorhome. I would like to slip a hose on the end of the exhaust to run 10-15 feet away and downwind when we are boondocking. I've seen the "stack" type pipes that people run up up vertically on side of camper, but the way my slide out is over the generator it wouldn't work very well. Ideally, I need a hose that can handle the heat of the exhaust and be flexible enough to wind it up and store it, like you do with a regular water hose. Only issue that pops into my mind is if the exhaust temp is high enough for a hose laying on the ground to maybe be a fire hazard??? Any opinions or ideas? What temp you think the exhaust gases get to? 200 degrees?