We have our AIR FLO BRAND by Lennox on sale until 1/20/13. Get a 70,000 btu residential gas furnace installed for $1159. This is for a stand up 80% gas furnace.It includes 5' of flu pipe. We use existing power supply and gas line the duct work stays the same any modifications to the duct work will be extra. If you are going up in size your furnace may require an extra return vent be added. We can have you new furnace installed in a few hours. 1year labor warranty and 10 year parts warranty. Aaac service heating and air is a Ga state licensed company. We can also instal a name brand Lennox call for current prices. For furnace replacements in Henry county call our Mcdonough serviceman at 7708754113. For Residential furnace replacements in Fayette county Ga call our Fayetteville serviceman at 4049524510. Please leave a message if you get a voice mail. The calls go directly to the servicemen.