When winter is extending its icy clutches or summer is mercilessly beating down on your day-to-day activities, who do you turn to for the best heating and cooling systems on the market? Air conditioning is a necessary staple of everyday life in America and it’s hard to imagine where we’d be without it. When the best heating and cooling systems start to falter, though, it’s more than just shivering in the cold months and sweating in the hot months — it can do a number on your energy bill and even put you at risk for a fire if not…