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Old System: Propane 3-zone boiler with 40 gallon standard vented, DHW tank

New System: 4-ton Hydron Module Geothermal Heat Pump with desuperheater tied into Rinnai tankless DHW system

Configuration: horizontal, closed loop water-to-air

Loops: 4 - 3/4" X 800' HDPE piping loops runs installed in 4 - 3' (W) X 6' - 8' (D) trenches