Commercial Package Dual Fuel

Mainline offers a range of efficient, dependable and cost-efficient heating and cooling product options, so businesses can optimize their working environment as well as their budgets. From easy-service features to advanced technologies, our Commercial products deliver durable, long-lasting performance to get the job done.



  • 1 Phase Models
  • Meets 81% AFUE Standard
  • Dual Fuel
  • Scroll® Compressor
  • X-13 Motor
  • Nominal Size: 2 - 4 ton

Mainline Warranty

Click below to protect your product with a dependable warranty from Mainline.

Frequently Asked Questions

Quickly and easily find answers on common topics including locating a serial number, purchasing a Mainline warranty, home load calculations and more.

Mainline is the Best Choice

Mainline offers dependable, high-efficient, smart products to keep your entire home constantly comfortable, no matter the temperature or season. Click below to learn more about Mainline furnaces, air conditioners, heat pumps, air handlers, and coils.

Get in Touch

Contact Us