I am considering a furnace replacement (old Bryant furnace is about 15 years old), and I narrowed down my search to two Lennox models: el296v or sl280v. My considerations are:
o quiet operation (hence 2 stage, variable speed)
For the efficiency/cost, from the info that I gathered:
o el296v is more efficient than sl280v, but it's installation requires additional work (and cost);
o sl280v is easier to install because it's designed to directly replace older furnace models.
I am wondering if it is worth it to go with el296v and pay more for installation (and furnace) - I live in CA (Bay Area) and winter is not really cold, so will the efficiency savings really cover higher furnace/installation cost?
The one story house is about 1500ft, the suggested unit size is 3-3.5ton, AC unit being considered is XC14.
The current system is installed in the house, I am considering an option of moving it to the attic.