Honestly for that difference I would just go for the 2 stage. There's enough anecdotal evidence of how much more comfortable it is.Hello all,
I am looking at estimates to replace my dead furnace for my 2nd floor in Chicagoland. I have a 2-zone system with 2 furnaces and 2 ACs (1st/2nd floors). I would like to replace my AC also along with the furnace. The current ones are 80% 60K BTU furnace and 2.5 ton single stage AC from 24 years ago. I always felt that the furnace/AC did not do a good even job for all upstairs rooms(too hot in Summer/too cold in Winter in some rooms even when thermostat showed stable temps). I guess this could have been due to the age of the systems themselves as well as due to the non-efficiency.
I would like to eliminate/reduce that issue this time. So I am going with a 96% 80K BTU 2-stage variable speed furnace (Trane S9V2) for the heat side. For the AC I got quotes for both single stage and 2-stage 3-ton 16-SEER ACs (Trane XR15 vs XL17) for about 2K difference. is it worth the big price difference for the 2-stage AC? Will the 2-stage version improve my cool side issues during Summer or is the single stage good enough? If there is not going to be a lot of difference, I would rather save my money there.
Let me know your thoughts.
A question which requires further exploration is whether your original system is undersized? That will require a full "Manual J" calculation. It could be undersizing which is creating your heating/ cooling problem.
Statistics: Posted by Valuethinker — Tue Apr 30, 2024 6:12 am — Replies 12 — Views 1050