If you are looking for a heating and cooling system for your house, the 3 ton 18 SEER variable speed heat pump communicating system from Trane is can be a reliable HVAC solution. This HVAC system has been developed using 3 major HVAC components from Trane. The 3 main Heating and Cooling equipment are – (1) Trane 3 Ton 18 SEER XV18 36000 BTU Variable Speed Heat Pump 4TWV8036A1000B, (2) Trane 3 Ton 2-Stage Variable Speed Convertible & Multi 1/2 HP Air Handler TEM8A0C36V31DB and (3) Trane 10 kW (7.2-9.6 kW) Electric Heater BAYHTR1510BRKC with Breaker.