Gas Package 3 - 25 Ton

Get budget-friendly performance from our gas package rooftop units in the 3-25 ton range engineered for light commercial comfort.

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Gas Package 3 - 25 Ton

These gas/electric rooftop package units combine electric cooling with gas heat in a single cabinet for commercial buildings. This category fits replacements and new installs across three chassis groups: 3 - 6 Ton (Small), 7.5 - 12.5 Ton (Medium), and 15 - 25 Ton (Large). Ideal for licensed contractors and property managers, they streamline rooftop changeouts for offices, retail, restaurants, and light industrial spaces.

Efficiency options include 13.4 and 14 SEER2 with AFUE 81 gas heat. Models use R-410A refrigerant and are available as downflow or convertible downflow/horizontal supply/return. Tonnages span 3, 4, 5, 6, 7.5, 8.5, 10, 12.5, 15, and 20 tons, with common heating outputs reaching 150,000 BTU. Many models support accessories such as economizers and smoke detectors for code compliance and ventilation needs.

Designed for light commercial duty, these package AC and gas heat systems provide reliable rooftop performance and value. Professional installation is required to meet code and ensure correct curb fit, flue venting, gas line sizing, electrical disconnects, condensate routing, and control wiring.

Top Brands for Gas Package 3 - 25 Ton

Daikin and Rheem lead this lineup with proven commercial rooftops known for durability, parts availability, and straightforward serviceability across small, medium, and large chassis selections.

Frequently Asked Questions

  • What tonnage range is available for these gas package rooftop units?

    Offerings span 3 to 25 tons across small, medium, and large chassis selections.

  • Are these systems compatible with downflow and horizontal duct configurations?

    Yes. Units are available as downflow or convertible downflow/horizontal. Verify model orientation and field-convertible panels.

  • What SEER2 efficiency options are offered in this category?

    You’ll find 13.4 SEER2 and 14 SEER2 options, varying by tonnage and model.

  • Do these units use R-410A refrigerant and what is the AFUE rating?

    Yes. They use R-410A refrigerant and feature AFUE 81 gas heat performance.

  • Which brands are available and how many models per brand?

    Daikin and Rheem are offered, with multiple models in each chassis size depending on current stock.

  • What are typical heating BTU outputs available in this category?

    Common outputs include ratings up to 150,000 BTU, depending on tonnage and burner configuration.

  • Are these gas/electric package units suitable for light commercial rooftop applications?

    Yes. They are engineered for offices, retail, restaurants, and similar light commercial buildings.

  • What installation considerations apply (flue, curb, gas line, electrical)?

    Plan for proper curb or adapter, crane placement, flue venting/clearances, gas line sizing, condensate routing, electrical service, and controls.

  • What power/voltage configurations are offered?

    Units are available in common commercial voltages, including 3-phase options by model. Always confirm nameplate requirements.

  • Can these replace older R-22 rooftop units and who should install?

    Yes, with correct sizing and curb/adapters. A licensed HVAC contractor must perform installation and startup.

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