Quote:
Originally Posted by warewolff
There's a loop at your engine and a valve you have to close before you remove that line. That heater works electrically with a blower fan, but it's blowing off the radiant heat provided by your engine coolant. You need to loop the coolant lines off at the engine and then you can go about removing that heater. There should be a valve somewhere under your dash near your feet, left side, to cut that line off.
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Just did this job today on Serenity. It had 3 heaters... one beside driver, one mid way down the bus, and one toward the back. I kept the driver heater. I cut the hoses 5 feet back from the driver heater and quickly hung them out the window into a bucket outside. Once they stopped gushing, I unhooked the out tube
(bottom one) from the driver heater and put a U shaped tube from the out of the driver heater and joint connected it to the engine return hose.. All of this is done just behind driver seat. I put a plastic box over the work I did. Now my front heater switch still operates a box that helps heat the front of the bus while its running. Hope this helps.. let me know if you need pics.