cmc0814
New member
Well, I got to thinking about power outage problems. I have the oxygen/water flow covered (as good as it is gonna get) and needed something for keeping the heat up. I thought I could make a makeshift heat exchanger. I could boil some water on the stove (maybe not boil, just heat it up) and then pump it through tubes that are placed in the tank. I know I would go through a bunch of propane or whatever the gas is, but it would be worth it to keep everything alive.
