I am getting a quote together to install a Rinnia 6.3 natural gas outdoor unit I can get it for about 700 I have installed about 10 of these for my former company. I am now running a small company. i need to get my price together to potentially get a few jobs doing these. I know i can complete the job in a day in most situations. My former company would charge $2500 dollars for everything. Im thinking that is a little high and want to go lower since i get a pretty good deal on the heaters.