Live in a 3 bedroom log cabin and heat it with a wood stove insert. The wife and I are planning to move to the downstairs bedroom since we have another little one on the way. This bedroom does not get much of the heat from the wood stove so I need to figure out an alternative heat source for this room. It has baseboard heat but I don't like baseboard. Lowes is starting to put their vent-free propane heaters on sale and I am considering buying a 10K BTU unit for the back bedroom. I will purchase a 100lb propane tank as my source of propane. Questions? -Are these units considered safe? -If the propane tank is going to be on the outside wall adjacent to where the heater is, can I buy a 4' gas line kit for easy connection to the propane tank (w/ two stage regulator) or do I need to hire a licensed plumber? -What is another heat source I should consider?