There are all kinds of propane burner stands for outdoor use ... if you plan to do this often it might be worth the investment so you can have your water pot near your plucking area. You don't need a huge pot for a chicken, and you don't need the water to be at a rapid boil, either. With a smaller pot of water the side burner on a gas outdoor BBQ might be adequate (I'd be worried I'd flip the BBQ if I put the turkey pot on the side burner of my BBQ ...)
Here is a quote about picking a scalding temperature: "Young birds with easier to remove feathers can be scalded at 125° - 130° F. for 30 to 75 seconds. The proper length of time for adequate feather removal leaves the epidermal layer of the bird's skin intact. Temperatures of near 140° F. for 30 to 75 seconds can be used with older birds for easier feather removal. The cuticle covering of the skin will generally be removed at this temperature. Because of the difficulty in removing feathers from waterfowl, ducks and geese are processed at higher temperatures 1 to 2 minutes in water at 160° - 170° F. Adding detergent to the scald water helps water penetrate through the feathers, especially on waterfowl."
I found that quote at this site:
http://www.extension.umn.edu/distribution/livestocksystems/components/0701b.html
You might find that the hot tap water in your home is 120 or more ... for me 120 is a little higher than I'm comfortable putting my hand in, but not by much. I recommend a thermometer rather than a finger. A meat or candy thermometer will help test the water temp. It isn't hard to get the scalding water so hot that you can tell you're actually starting to cook the bird ... that's too hot.
I like this video for really explaining how to make the cuts and efficiently eviscerate the bird.