Are Air Ducts A Tax Credit Can I Take Any Kind Of A Tax Credit For My New Gas Furnace, Central Air Conditioner, And The Duct Work.?

Can I take any kind of a tax credit for my new gas furnace, central air conditioner, and the duct work.? - are air ducts a tax credit

The furnace is only 80% efficiency and cooling is estimated at 13 seer. I'm pretty sure I know the answer to this question, but I want to confirm, just to be safe. From what I have found the stove should be 95% and the air conditioning is an index devin 15 years. The other question is if the channel received credit in isolation? Any suggestion is welcome.