We are Chicago's On-Demand Heating & Air Conditioner Company. You’ve just found the easiest way for you to have your furnace or air conditioner replaced for your home in the greater Chicago area. Replacing your HVAC equipment can seem a bit overwhelming – we promise it’s much simpler than it seems. With a new system from FurnaceUSA you skip all the wasted time, markups & overhead of the traditional heating and AC industry. No longer will you need to have a salesperson in your home – let our technology based solution save you time and money.