I would like some input on how to best provide heating for the addition. Here is what I know: I would prefer to stay away from electrical heat (either portable or built-in space heater). I have researched small gas (direct vent) fireplaces ‚Äì acceptable but expensive (requires extending gas line) and unless a thermostat is used, only heats when turned on. I have researched a system using the hot water heater for a stand-alone system w/ thermostat ‚Äì less expensive and doable by a DIYer. Adding to the current hot water radiator system ‚Äì expensive and I understand there is a risk of leaks or other problems developing by opening the old system.
Anyone‚Äôs input or 2 cents would be appreciated?