There are also coolant warmers:
TANK-TYPE ENGINE HEATER
Fast starts all winter long
Built-in thermostat prevents overheating and burnout. Keeps engine warm by circulating warm engine coolant through entire engine. Quicker heater and defroster output. Connects to 5/8" heater hose—operates on regular AC house current. 120 volt. With 1-ft. grounded cord and instructions.
750-Watt. Warms 4-cylinder engines in 2-3 hours, 6-cylinder engines overnight.
Imported Car Adapter. Adapter required for all Mercedes (Not included).
I'm not sure how it circulates coolant through the entire engine if the thermostat is closed. Anyone know or is it a misleading statement?
Darin tested an inline coolant and a bolt on type...
http://ecomodder.com/forum/showthrea...-warm-817.html
__________________
Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.