 Mike Gallagher. Oh, it's the most wonderful time of the year. Time to crank up the air conditioning and Comfort Source is ready to help. Is your air conditioning up to par when it comes to the summer months ahead? Better check before you melt. Comfort Source is an independent Mitsubishi electric heating and air conditioning dealer and ready to help you find the best heating and air conditioning solutions. Their maintenance plan will always put you at the top of the call list with a 24-hour response time.