ABN Silicone Heating Pad 120V - 4 x 5 Inch Universal Engine Heater Car Oil Pan Heater Pad, 150W Electric Heater Pad

I mounted this on my car engine's oil pan. I did what others suggested and sealed the edges with high temp silicone. So far it has worked great for one winter. It only got down to 0° F this winter, but we had no problem. The car started easy and warmed up much faster than it would without this heater attached. It was kind of a bitch running the wire up to where I could connect it to a power cord, but that's to be expected with a front wheel drive vehicle with everything crammed into the engine compartment.

Had this installed on my pickup a couple winters now. I use this on my battery to preheat on cold days before starting vehicle. Been working just fine.

not magnetic mount. 3m adhesive. i just hold in place with a cow magnet. gets hot!

For only 50 Watts, this small pad heats up quickly and quite warm. I'm warming a 2x2 foot battery box I built to house my Lifepo4 battery and it can only be charged at temps above 32F. I'm using this heater with a Thermocube which turns on at 35F and turns off at 45F and a small 6" x 2 ft long piece of metal flashing to act as a heat sink. It works flawlessly. And takes only about 10 minutes to heat up the box to the point the Thermocube shuts off. I use this to power all my Astro photography gear including 2 cameras, two focusers, my Power distribution box and my mount. Thought I might need two heaters but this looks like it's going to work. Does well down to 14F so far. We'll see when it's -5F and see if she still performs. ;o)

These were relatively inexpensive and I picked them up to use on larger metal items in the shop to discourage condensation (seems to be working very well so far). I've metered them and they actually draw the advertized 25w (wasn't sure they would be properly-made given the affordable price) and the backing pad sticks extremely well to a clean surface. I'll be picking up more of these for use in various places. They're very handy especially when paired with a thermostat or PID controller.

So, I jacked my vehicle up in preparation for installation. It was already in the below 0 temps. I pre-routed the wiring and proceeded to remove the liner for the adhesive backing...it didn't stick. I couldn't tell if the cold made the adhesive negligible (you couldn't feel any tackiness) or if it wasn't there at all. I proceeded to apply some high temp silicone gasket to the pad (as I'd heard you'd need this to reinforce anyway). The silicone gasket worked in attaching the pad to the oil pan.I plugged in the heating pad to a working outlet and noticed it heating well. The end of the next day driving home I had already noticed a crack in the cord as well as a crack in the stress relief area. So not only is the cord not polarized, it's not weather resistant or stress resistant.A little disappointed as I put a lot of work installing this pad that had a issues out of the gate and during usage. I expect I might get another day or 2 before the prong end snaps off completely and I have to scrape off the heating pad.

Added this to my son’s vehicle last fall prior to him going to play hockey in Saskatchewan CA. He used it all winter no problem starting it. Easy to install

The pad gets very hot. Nothing on the pad says what the wattage is for this one.Also, the cord seems very cheap and low quality rubber insulation. Gets hot near the pad. I am concerned the cord could deteriorate and melt.