Guest post from Andrew who has installed a conventional wood stove for his sauna, and has found a simple solution to the loyly (steam from water being tossed on sauna rocks) quest. So far he has not had any problems with his common steam pot that sits atop the wood stove. He filled it with rocks from his nearby stream to make sure the loyoly is true (and from his land).
Only limitation is the amount of water you can pour on it. 1/4 cup or less to keep it from boiling over.
Steam soup is ready! ahhhhhh