Mainline Home Energy Services is your number one resource for living in a safer, healthier, more comfortable environment.


The 18k wall unit in the living room in on a single-zone outdoor unit. The 9, 9, 7 and 7 are connected to a multi-zone 36K outdoor unit (pictured under pressure test to check for leaks.) We then vacuumed to remove any moisture and then started it up! All systems go, and we have a happy customer!