Variable speed technology changed efficiency capabilities while solving minor duct issues. The air handler or furnace with a variable speed motor makes the split system able to achieve the desired SEER rating. 14 seer units can have a regular furnace or air handler, however any SEER greater then 14 needs the varible speed motor.

combo unit
package unit

A variable-frequency drive is adjustable-speed and it's torque is controled by varying input frequency.


Our Main Site

Click Me


See our tips, articles, coupons, etc.


Email 24/7 | call 8-5

HVAC help Main Page

Custom-Air Help Desk

Your HVAC source

HVAC troubleshooting

Save $ on that service call!

A clean filtration system? More important then you think!

There are many important parts involved with heating, cooling & air conditioning your home. None much more important then your filter! It can raise your utility bill, lower the life expectancy of the equipment and leave you with no heat on a cold winter night. Left unchecked it clogs and wreaks havoc on your system. 75% of all phone calls we get are clogged filter related. Fortunately for our customers, we walk them through the issue most of the time right over the phone. We have an android phone app that you can download, it will remind you on your cell phone to check your filter. You can get the app HERE!!!