 A lot less efficient, which means more money out of your pocket. And with the dog days of summer approaching, it's going to feel like it this week, you're going to want to be proactive. Laney's, they are giving you a chance to fetch a free outdoor AC unit when you purchase a new Coleman high-efficiency furnace. That's right, a free AC unit. But if you only need the furnace, ask Laney's about their $700 rebate on Coleman equipment.