As much as half of the energy used in your home goes to heating and cooling. So making smart decisions about a home's HVAC system can have a big effect on utility bills — and comfort. Systems 09LZBS1, 12LZBS1 and 15LZBS1 are currently among the world's most efficient mini-splits in North America, with Seasonal Energy Efficiency Ratings of up to 33.1-SEER. As much as half of the energy used in your home goes to heating and cooling. So making smart decisions about a home's HVAC system can...