In my experience my canner requires not a high heat, but more of a steady medium heat. Maybe THAT is why they are vetoing the turkey fryers?
When I can I usually put the canner on the stove with the measured water in the bottom and turn the heat on high while the lid is OFF and I am still loading the canner. This gives the thing time two heat up some of it's mass and the water a chance to warm up some.
Usually by the time I am finished loading the jars and loading the canner the water is steaming or maybe simmering a bit. I go ahead and Vaseline the pan edges and the lid edges. (I have an All American and THAT is what completes the seal and is according to manufactures directions for my equipment.) Then I set on the lid - make sure it is on correctly and balanced and screw down the bolts (again All American canner). All this time the stove is set on HIGH heat and I have the jiggle weight OFF.
Then I wait. I allow the rest of the canner contents and water to heat up until steam freely pours out of the jiggle weight's vent. At that point I turn the stove down slightly and time 10 to 15 minutes. Just let that steam vent out. It allows extra air to escape from the jars and the insides of the canner before pressure canning should begin. When the time is up I place on the weighted jiggler set to the right amount of pressure I want.
NOW STAY CLOSE!! Within a very few minutes the canner will start to sputter. My canner has a safety vent device that sputters until the canner gets to about 4 pounds of pressure then the device seats and seals. After that pressure rises even faster. Soon you will reach the pressure necessary and your jiggler will wiggle and let off steam. Turn the heat down and watch your jiggler. It should wiggle every 20 to 30 seconds. That is proper temperature and proper pressure. Time to start timing the food cooking inside the canner! STAY CLOSE to the canner and keep an eye on it. My All American also has a pressure gauge in addition to the jiggle valve and that makes it easy to watch. You want the least amount of heat on the stove necessary to keep the pressure steady. I find a medium low heat works best in my conditions.
When I am canning I like to snap beans, read, knit from my kitchen chair that faces the stove or clean in the kitchen while the canner is running. I keep a CLOSE eye on it while it is under pressure. NOT that I am so afraid of an explosion ... I want the food to turn out the best, but it prevents the aplosions as well.
When the time is up for my food I turn OFF the heat and go about my business for a while. The canner MUST cool down on it's own. I learned that the hard way when I was learning. I would take off the jiggler to let the steam out and then wonder why all of the liquids came shooting out of my jars!

Broke more that my share of jars as well. Another thing I used to do was tighten on the lids before canning. The lid should be firm against the jar, but loose enough to allow some steam to escape. I would crank them down so tight the jar would explode.

(Which sounds like "pink" from inside of the canner.)
After the canner is cool to the touch, or the pressure gauge reads zero. Remove the jiggle weight and let any steam in the pot escape, then remove jars to finish cooling. Now is the time to appreciate the fact that all of that food is saved and won't need a refrigerator either!
