Cooling Only Cooling & Heating Learn more about Outdoor Unit Standard Type 11500BTU (Model: TKF(R)-32GW) 12000BTU (Model: TKF(R)-35GW) 13300BTU (Model: TKF(R)-37GW) 18000BTU (Model: TKF(R)-52GW) 24000BTU (Model: TKF(R)-70GW) 36000BTU (Model: TKF(R)-120GW) 41000BTU (Model: TKF(R)-140GW) 48000BTU (Model: TKF(R)-160GW) Functions: Leading technology of Luxury LED design line up to 48000BTU Energy Saving up to 50% compared with ordinary air conditioner Wide reliable working temperature; World famous reliable compressor: Hitachi & Mitsubishi Saving energy at anytime, and any weather. Health technology fully improving the air quality (optional) Elegant appearance & latest design Intelligent remote control & 24 hours timer function Auto restart Auto mode Four-fold Heat Exchanger Sunwell Solar Air Conditioner adopts Four-fold Type Heat Exchanger, as one of the core components of the solar air conditioner. Its heat exchange effective area is increased by 20%~30% than the V type and Flat-plate heat exchanger, which greatly improves the cooling and heating capacity. Hydrophilic aluminum foil The ordinary aluminum forms water bridge after condensation, then blocks the air channel, and reduces conduction properties, which reduce the cooling capacity. Hydrophilic aluminum foil forms lamellar water film after condensation, which will not block the air channel and decrease.