which of the two would be safer a house with no lightning rod or a house with rod not connected to ground?
Before making that leap, check with your Insurance carrier. Many won't even touch indoor wood burning stoves*, and some won't even insure outdoor wood burning boilers. *Or cancel you if you don't inform them before installing. Unless you don't care about insurance But: if you have a mortgage you must have insurance, and they are the 'loss payee', which means you get paid last after everyone else in the event of a fire. And make sure you have a steady source of wood. It takes an astonishing amount of wood to heat a house unless supplemented with other fuel. Cleanup of indoor wood chips and ash is another big issue most people don't considerit's messy. And you need a way to cover the wood, especially if you're where it snows. Cutting, hauling/delivery. storing, off-season maintenance, city ordnances, bugs brought in from the pile, rodents. Installing is important, but it's the actual operation that gets most people down.
Yes, it will not harm your vehicle. You will only wear out the tires eventually.
I don't know what the code is but I live in an apartment complex and they have one fire extinguisher for every two apartments. They were in the wall between the two apartments. One upstairs, one downstairs. My mom's apartment has about 4 apts in a downstairs area and they have like one for that. Maybe you could call some local apartment complexes and ask them what their requirements are for the extinguishers.