Hi everyone. I just received my first quote for a new system and I feel it is a bit higher that it should be. Installer quoted: $38,400(Before rebates) System is a 3Ton 5 Series Water Furnace 10kw Aux heat Communicating Stat 1 Vertical 450ft well. My first question is why they quoted a vertical system. Our lot is 2 acres in a rural area, plenty of room for a horizontal system. Would it not be cheaper to use a horizontal system? House details: Upstate NY 2000sqft Colonial home. 26 years old Has a forced air LPG furnace Unfinished/unheated basement. Thanks for your inputs.