I am replacing my 20 year old Ruud furnace and AC Compressor. I am considering going with another Ruud UAPL Series
Ruud Achiever Series 14 SEER Premium Condensing Unit Featuring R-410A Refrigerant and a UGTA Series
Achiever 90 Plus Premium Downflow Gas Furnace. My contractor is reccomending I go with a "Bump Coil" in the furnace to boost my SEER to 15. Is that true? Is it a good idea? what are the possible reasons to consider not doing it? Is it worth the money? Any advice here would be appreciated.
FYI I live in Modesto CA I am on PG&E and my average KWHR rate is around .28 and I can be as high as .36 for the last week od so of my billing cycle based on their baseline. my house is 2600 sq feet and I added R30 blown in insulation on top of my existing batting that had an unknown Rvalue. I am planning to install a 5 ton unit.
Also my contractor is recomending I replace my ducts. They are in the crawl area, are 40 years old and have very little insulation on them. Is this a good idea or a scam? He says that I will get more efficient heating from oneside of my house to the other with out much varience in air temp (I have a one story ranch style and it is some distance from the furnace to the rooms on the other side of the house and they are much colder in the winter)