Bob's Tip of the Day: There are some indications that it may be time for furnace replacement: • If your furnace needs frequent repairs. • If your energy bills are going up. • If the rooms in your house are heating unevenly. • If your furnace is cycling on and off more often than in the past. • If your home has humidity problems. • If your furnace becomes excessively noisy. • If your furnace starts putting out dust, soot, dirt. • If you see signs of rust in and around your furnace.