I once saw a Euro 6.9 with a gasoline fired block heater that was made by Webasto. They also made gas fired heaters for air-cooled VW's.

This thing ran off a clock. At the set time a small burner set-up started misting gasoline and a spark plug would fire. This would light the burner which was about five inches by two inches.

A pump motor that looked like the pump for the heater circulated the engine's coolant through a small core above the burner and then throuout the engine. It was all very complicated looking.

The best part was that, new from the factory, it only cost an additional $7,000. That was the installed price; I don't know what the cash and carry price was.

Even better is that they are still available! Webasto makes these for Diesel trucks, and by that I mean 3/4 ton trucks. The units appear to be much more compact than the old ones and would likely fit in the engine bay area behind the headlight on the left side.

This is also an all-in-one sort of thing, so there is no incredable amount of plumbing involved.

No info on current costs, but the Webasto site has a list of dealers.

Pooka