Home Forums US Life Water Heater, Furnace, A/C 교체비용 Water Heater, Furnace, A/C 교체비용 Name * Password * Email Based on 3300sf, Furnace & AC unit: 8000~10,000 including labor Water heater with tank: 2000 including labor I think you'd better join the home warranty. If you have that they can replace everything. In my case, the home warranty company changed my Furnance & AC unit but I only paid less than 600. I agree to the terms of service Comment