as hivoltg said the powerhouse heater look VERY genaric and i would never drop that kind of coin on that heater...I preheat my engines in the winter and the summer why not? they start easier,last longer, and just get up to temp that much quicker...I am very interested to see what this heater is like and if it is not a arm and a leg for a genaric ass looking strap on, then count me in for one.

Ryan