Not 100% geothermal related but hoping someone here could guide me in the right direction. I had a Climatemaster Tranquility unit installed this past summer with the desuperheater. As part of the install they put the 50 gal 'dummy' electric tank and hooked that to my existing 80 gal propane water heater. Well that propane water heater is now dead and I'm looking to replace it. What would be the ideal (in terms of efficiency and budget) replacement? Should I just do a straight swap for an 80 gal propane tank? Should I go smaller since I have the 50 gal holding tank? Should I go electric, or maybe tankless propane? We have never run out of hot water and I don't want to start now. There's 5 of us in the house, and 3 of them are girls. I guess I am just not sure how, or if that 50 gal holding tank should change my decision making on replacing the water heater. Thanks!