I am in the Market for a 16 to 20 seer Heatpump..I need a 4 ton unit the ductwork is in Perfect shape.We just spent 4000 bucks to have the Power box upgraded all that needs to be done is the OLD Evcon Split unit take out and the new one hooked up..The Ducting was cleaned and have been told that its some of the best work they have seen 70% is Rigid.For a Bryant 4 ton Heatpump this one was a 16 seer was 11K $$$..I have a Trane/American Stand comming today and if the Bryant is that much I am expecting 20Grand for a Trane..This Bryant was not the top model it has a Two-stage Bristol Twin single compressor the 18 seer is a Scroll.This was just for the System, T-stat and to hook it up it didnt have the whole Evolution system extras..I live in North G.A./Tenn state line..I have tried to ask questions but Hvac Folks will NOT ever talk about price.I could install it myself im I a engineer student but I lost my leg in a accident. I am just on the theory of thermodynamics in real world things are always differnt..There is NO way it can cost that much to remove the units and hook them up.The lines might haved to be changed I have been told both.I know they haved to be flushed very well if they reuse it the Pad is there for the Unit and I had the power guy install the breaker and run the line to the Evaporator/Air handler in the attic for the E.M. heat for when it goes in defrost..We have a Natural Gas furnace up there now and it works great still but its so hot and Drys out the house.They make me nervous I about got killed in our other house it had a 1980s Lennox Pulse Furnace.Is there any Hvac guys that can give me some advice?I can buy a New 4ton Ruud 17 seer 2stage Heatpump sitting in my front yard with everything for 3500$$$.That is just for the system not the install..If the Byrant was 6000 Grand that is just a guess how can Labor be 5000 more with No duct work..If I bought that Ruud would it Piss the Hvac guy off?I am guessing about 8 hours Labor and that is the most to me it looks to be a 4 hour job,cauz everything is done that I could do.So that would be 725 bucks a hour for the Labor if it took 8 hours..Which it Cant I know how to wire them up the charging and superheat Caulc I cant do.