Additional heat from wood furnace.

[all night moe]

Why not just run it to the kitchen with a circulator and none of the other stuff and see if it even makes enough heat to make a big system? My stove was disappointing but it made steam with no power.

I'm using a wood furnace. Old school, BIG firebox. 24x24x48''L. It has 2 SS water coils in it. My plan is to use a 55gal drum for storage. Even though it'll be vented, I don't want any chance of it getting pressurized. Relief valve or not, I'd rather err on the side of safety.

Edit/add on: Besides, even if it only dumps heat on occasion, It'll be dumped in the crawl space effectively warming the floors some.