We have a Kitchen Queen 480 and we want to heat water with it. I am trying to figure out how big the hot water tank and coil should be to maximize the hot water without over-sizing the tank or over-cooling the stove. I have tanks from 20 to 100 gallons. I was thinking 40-60 gallons should be doable. summer vs winter should be taken into account since we live in NW WI. The fire will be going all the time in winter but not always in summer. We don't use much hot water in the summer anyway. This will be on the pressurized house system. I understand how it needs to be plumbed to avoid steam problems.