I ran across this news story and picture about a guy who was using one of those 5 gallon propane tanks and an accompanying 3 foot long wand for weed control around his house. You can burn weeds right down to the ground and the intense heat many times will kill the root as well. Some people prefer it to poison as it is safer for pets and kids. I have considered getting one for use around the compound here but, just have never got around to picking one up. You can get them at the farm or tractor supply store for about $25 (without the propane tank). Anyways, this guy decided to head out doors and attack those pesky weeds. He apparently had wet down the tree next to his house before firing up the torch, but, the tree ignited anyway. (Pine tree pitch is very flammable and apparently fed the fire.) The story did not print the guy's name and, rather, referred to him as "the homeowner". Firefighters had no estimate of the amount of damage, but, did note significant damage to the roof, and water and smoke damage was found in the living areas of the house.
The good news is the local neighborhood homeowners association did enclose the "Best Yard" award along with the 30 day notice to clean up the property.