Take shots at this idea......, I'm sure there's something wrong with it Options

[East coaster]

So, in the quest for some sort of damn heat/defroster I was curious if this could work.

In the really sh*tty diagram below, a coolant recirculation system that cycles coolant through the muffler to transfer heat from exhaust to coolant so it can be used with a heater core to supply heat/defrost.

I would expect that the tubing passing through the muff would need to be more than a simple tube and more likely an array of small tubes in parallel to better transfer heat.

Is this feasible or should I gently place the crack pipe down and call for help (IMG:http://www.914world.com/bbs2/html/emoticons/smoke.gif)

[Kerrys914]

I think it would be easier to use a small oil cooler (motorcycle) and an oil thermostat to get heat from. I have a system sketch I made when I was going down this road. IT can be done with little cost, if you can DIY. I put a SIX in and don't need heat right now.

Just keep the oil lines and cooler out of the cabin and you should be fine. You wont get alot of heat from it if you run 0F air across the coil, but if you duct cabin air to (and through) it you should get some good heat.

Try this.... Duct cabin air (return) from the passenger side long duct to a coil and then back into the cabin (supply) through the driver side long duct. This would help with the "oil" smell and help with maintaining the heat.

You can use OEM air valves or just fab your own. This design should work fine, if you can DIY it into your car.