Installing a mini split system yourself in the US can deliver substantial...

https://www.scribd.com/document/1013318156/Why-HVAC-Quotes-Are-So-High-A-Practical-Guide-for-DIY-Friendly-Homeowners-123814

Installing a mini split system yourself in the US can deliver substantial benefits—but it’s not for everyone. Here’s the real story: **Cost Savings:** DIY installation cuts out pricey labor charges that often run $1,000 or more