AquaCal TropiCal T55 Heat Pump T055AHDSBND 51,000 BTU – Swimming Pool Heater. Unit is 230 volt single phase and according to the manufacturers website is rated for up to 10,000 gallons of water. The item “Tropical Pool/Spa Heat Pump” is in sale since Sunday, January 15, 2017. This item is in the category “Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Pool Equipment & Parts\Pool Heaters & Solar Panels”. The seller is “oilheater0kr0″ and is located in Vandalia, Ohio. This item can’t be shipped, the buyer must pick up the item.