Here's a video of this project:
This should cost you ~ $50 to build (commercial versions cost ~$400). If you're going to strip any significant amount of wood, this should also be cheaper than buying chemical removers.
I sell kit and finished versions of this and most of my other projects on my website, dirtnail.
Additionally, this method should be safer for you and the environment than using conventional, toxic paint removers.
Thanks to the dude at Ocean Manor House for building this and sharing his plans: my version is at best a slight improvement and more likely a downgrade from his:-)
Step 1: Gather Your Materials, Tools
For my way, here are the materials you'll need:
-A 120-volt ceramic infrared heater: I used this 900 watt unit, and it cost ~$40 after shipping. The $400 commercial units use an 1100-watt unit.
-A higher-gauge ac cord: I used one from an old microwave. make sure it's capable of handling however many watts you will be pumping through it (remember watts = volts * amps). for my project, I need a cord that will handle 900 watts or a cord rated to handle 900 / 120 = 7.5 amps of 120-volt AC.
-Electrical tape + wire nuts + thin-guage wire. For a higher-quality, more durable build, replae all 3 of these w/ high-temperature, nonconductive tape.
-A paint roller brush, sans roller sponge thingy.
-Some type of metal to build the reflector out of. I suppose this is optional and really just about increasing the efficiency, but it's definitely a good idea. I tried aluminum cans cut in half from top to bottom of can, and this metal was too thin.
-Rivets and riveting tool (optional), to better secure your improvised reflector to your hacked-apart paint roller
-An extension cord, so that you can remove paint further than the length of your power cord from an AC outlet:)
-Paint scraper, to remove your loosened paint.
Tools you'll want are:
-Wire stripper. I heart my automatic wire stripper, although any reasonably sharp knife would do in a pinch.
-Metal cutter capable of cutting the metal used for the reflector (and the wire). I used tin snips.
-A grinder or other tool to cut through the rolling part of the paint roller.
-Drill or other tool to make holes in the metal used for the reflector.