I just couldn't make myself pay several hunderd dollars for a forced air engine preheater... after all, if you can build an airplane surely I could make a preheater? Turns out I did. I bought a milkhouse heater and clothes dryer tube from Home Depot and used some scrap alumimun to fab one up for about $30. I connect it to a simple time and wallah, I've got a pre heater for cheap that works really well.
I had to go back and add extended feet so it would'nt tip over. Pre-heater 2.0
