Replace Old Furnace and window AC with new HVAC???

[Kraig Krueger]

I am purchasing a 1970's SFH locally in Minnesota as a long term rental that has new siding, windows, roof, and a new kitchen, but has a Lennox furnace from 1999, and a window AC unit on the main level. Both are still in working condition. The main level is about 1100 square feet, and it has a 1,000 square foot un-finished basement.

I'm trying to decide if I should replace the furnace right away and add central air, or if I should just get a tenant in and replace it once there is a problem?  Most of the other "big ticket" items are new in the house. This will be our third single family rental.  I appreciate your thoughts!

Kraig

[Joe Splitrock]

Originally posted by @Kraig Krueger:

I am purchasing a 1970's SFH locally in Minnesota as a long term rental that has new siding, windows, roof, and a new kitchen, but has a Lennox furnace from 1999, and a window AC unit on the main level. Both are still in working condition. The main level is about 1100 square feet, and it has a 1,000 square foot un-finished basement.

I'm trying to decide if I should replace the furnace right away and add central air, or if I should just get a tenant in and replace it once there is a problem?  Most of the other "big ticket" items are new in the house. This will be our third single family rental.  I appreciate your thoughts!

Kraig

 My parents live in the twin cities and they have gone most of the summer without even turning their central air conditioner on. That leads me to believe the window unit may be sufficient to cool the property. I would not assume that a 1999 furnace needs to be replaced. I have furnaces from the 1980's in my properties. I had a central air conditioner that lasted 40 years, which people claim is impossible for central cooling units. Have the furnace cleaned and inspected and see if the window unit can cool the property before rushing to replace anything. That being said, if you do replace the furnace, that is the most cost effective time to add central air.