Model #154 measures 2.25"x4"x.075" and consumes 125watts of electricity. It is best suited for average capacity oiling systems holding 1.5 to 4 quarts. Heaters are best matched to vehicle by sump capacity, and available flat area to mount the pad to.

"I'd rather start my engine with 60°f oil temp and a cool top end than a 60° top end and sub zero oil temp..." - JK

Model #512 measures 3.5"x4.5"x.075" and consumes 250watts of electricity. It is best suited for average capacity oiling systems holding 4-12 quarts. Heaters are best matched to vehicle by sump capacity, and available flat area to mount the pad to.

PROHEAT pads consume less electricity than frost plug/block heater counterparts. Frost plug/block heaters take hours to install with a variety of tools -- PROHEAT pads install in minutes without any tools and are permanent. A typical frost plug heater consumes 600watts while a 6.6l Duramax heater consumes 1000watts. Most applications can be covered by a Pro Heat Model # 512 which only consumes 250watts. PROHEAT pads are SMART, SIMPLE and COST-EFFECTIVE.

"I'd rather start my engine with 60°f oil temp and a cool top end than a 60° top end and sub zero oil temp..." - JK

Model #1325 measures 5"x7"x.075" and consumes 500watts. It is best suited for larger capacity oiling systems holding 3-6 gallons. The Duramax oil pan does not have enough flat surface area to mount this unit.

PROHEAT pads consume less electricity than frost plug/block heater counterparts. Frost plug/block heaters take hours to install with a variety of tools -- PROHEAT pads install in minutes without any tools and are permanent. A typical frost plug heater consumes 600watts while a 6.6l Duramax heater consumes 1000watts. Most applications can be covered by a Pro Heat Model # 512 which only consumes 250watts. PROHEAT pads are SMART, SIMPLE and COST-EFFECTIVE.

"I'd rather start my engine with 60°f oil temp and a cold top end than a 60° top end and sub zero oil temp..." - JK