This listing consists of the Goodman 4 Ton 14 SEER Goodman Packaged Air Conditioner ONLY This comes with a 10-year parts limited warranty provided it is installed by a qualified installer and registered online Heat kits for this unit are available up to 20 KW Accessories such as heat kits, thermostats, duct adapters, etc Sold Separately The Goodman 4 Ton 14 SEER Air conditioner system is a cooling unit, however, can also provide heat when a heater coil is added to it. The system provides you with efficient cooling with low energy consumption because of 14 SEER rating. The R-410 a cooling refrigerant ensures the ozone layer of the room and house is protected providing you with safe environment. The Goodman GPC1448H41 air conditioner is ideal for rooftop and ground level mounting. Also, it can be used for modular or manufactured homes. This is a self contained packaged unit that only requires return and supply ducts, drain connection and low voltage wiring as extra installations.