Will a mini split increase home value

[Damein White]

I’m thinking should i add mini split to my properties but will it increase my home value 

[Marcus Auerbach]

Okay, someone who does not know what a mini-split system is is giving you advice. That's just great. Can't tell you if it is going to reflect in a higher appraisal, but: 
AC is a tenant feature and will increase your rent and your reliability.

I hate window units with passion. Nothing screams neglect more than window units. For a little more money you can buy a mobile AC, which looks like a dehumidifier. We usually cut a permanent dryer vent in the wall and use that to exhaust it to the outside (instead of hanging a hose out the window, yikes again).

If you don't have forced air in a property (meaning if you have hot water radiators) a mini-split system is one of the most cost-effective ways to cool a house. You get most of the benefits from a central AC without the insane talks of installing ductwork in an old house. They are not very popular in my market (Milwaukee) either, but for no obvious reasons. A couple hours north in rural Wisconsin they are the most popular system, especially for lake homes and cabins.

Appraisals are always +/- 10%. I know that from my rental properties, many of them are close to identical, we rehab to a uniform standard and it always amuses me to get appraisals back. The problem with a refi appraisal is there is no purchase price the appraiser can target, so they will always be more conservative and aim low.

Bottom line: I would absolutely invest in a mini-split systems. But not for the appraiser. if it saves you the next 2 turn overs you already break even and you probably get get a little higher rent.