Having spent a few winters in Michigan in its former life, our Archer (N4135W) comes with an internal engine pre-heater to help warm up the oil and cylinder surfaces. It's pretty easy to use and is very beneficial in reducing the brutal wear and tear these engines experience when they are started in below freezing ambient conditions. In fact there is si
mply no reason any of our planes should have to experience the brutality of a cold soak start. If you plan on flying on a cold day you need to be sure to take care of the plane by either asking the FBO to put it in a warm hangar overnight or for at least 2 hours before your flight. The FBO will tow the plane into a hangar at your request for about $60 (this will be your responsibility to pay), so just give them a call. This is the easiest option and it has the benefit of making the entire plane warmer for your flight, you just need to plan ahead a bit and ask them before your flight.
If you plan on flying the Archer though you do have the option of using the built-in engine heater. The hangar has an extension cord hanging on the left wall (facing into the hangar) by the door. You can plug this cord in to the outlet by the refrigerator (unplug the refrigerator, these circuits are easy to trip). Then you can plug the other end into a little black cord inside the oil filler door (behind the dipstick). This will engage an oil pan heater as well as elements that will warm the cylinder bodies a little bit. The items will not be hot - just a little warm and it's okay to leave it plugged in overnight (no more than overnight please though). One item you need to remember is to loosen the dipstick and leave the filler tube open to the air. As the oil warms up the water vapor in the chamber will need an exit path otherwise it mixes with the oil in the tube.
Gary and Scott put together this brief demonstration video depicting the above procedure so that things are clear. Please take a look so you can see how it's done.
https://texinsflyingclub.box.com/s/pag1a1qvh0vmxoj5sym9r4gn7tgxsyas
Remember a single cold soak engine start below freezing is the equivalent of about 400 normal starts in terms of wear and tear on the engine metals and parts. At those cold temperatures the metals have contracted at different rates, the oil is hard to move through the lubrication channels, and the battery and starter have a lot more work to do to get the engine spinning. Please help us keep these planes online and flyable even on the cold days - heck that's why most of us like living in Texas - you can still do stuff in the winter.