Here's a stripped down version. I wonder if a person could use the existing auxilliary pump to move the coolant through the heater? The plastic 'T's for flushing the system would probably adapt it nicely since they say they offer a water hose adaptor for it.

http://www.hotcampshowers.com/79065_Hot_Tap_EP_external_power.html

Plug this baby into your cooling system and you'd have the engine up to temperature in about 20 minutes:

http://www.zodi.com/web-content/Consumer/zodix40shower.html



Would the coolant move by convection throughout the motor without the pump once the heater was fired up? (probably would need to put the heater as the low point in the system) When I bought my house it had a gravity hot water radiator system where the water circulated from the basement boiler by convection.

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13