Originally Posted by Roelof

If it is large enough to have an engine and you can controll the heat between 60 up to 100 degrees celcius then yes, it is an option.

You can also think of a mini deep fryer, they can be found for arround 20 dollar. Some have a temp control going as low as 80 degrees but with a 8 dollar temperature controler from ebay you can always make it work.