Voomi Supply carries commercial HVAC equipment for buildings, warehouses, and industrial facilities, including packaged gas/electric units, wall-mount package AC units, electric heat kits, portable evaporative coolers, and refrigeration condensing units, from brands like Daikin, Goodman, Carrier, Bosch, Copeland, and Bohn. Shop in-stock equipment with detailed technical specifications on every listing and US-based support to help size the right system for your building.
Commercial HVAC equipment covers a wider range of formats than residential systems, sized and configured for buildings, warehouses, and specialty spaces.
| Type | How it's used | Best for |
|---|---|---|
| Packaged gas/electric | Self-contained rooftop or ground-level unit combining heating and cooling | Retail, office, and light commercial buildings |
| Wall-mount package units | Compact self-contained cooling or heat pump unit mounted through a wall | Motels, classrooms, and additions without ductwork |
| Electric heat kits | Add-on heating elements installed inside an air handler or package unit | All-electric buildings or supplemental heat |
| Portable evaporative coolers | Cools large open spaces using water evaporation rather than refrigerant | Warehouses, manufacturing floors, and outdoor events |
| Refrigeration condensing units | Provides mechanical cooling for walk-in coolers, freezers, and refrigerated cases | Restaurants, grocery, and cold storage |
Commercial AC sizing depends on square footage, ceiling height, occupancy, and heat-generating equipment inside the space, not square footage alone. A rough starting point:
| Building size | Typical cooling capacity |
|---|---|
| Up to 1,500 sq ft | 3 to 4 tons |
| 1,500 to 3,000 sq ft | 4 to 6 tons |
| 3,000 to 5,000 sq ft | 6 to 10 tons |
| Warehouse / open floor plan | Often sized by portable evaporative cooling in CFM and square-foot coverage rather than tonnage |
A proper load calculation from a licensed HVAC contractor accounts for insulation, window area, and internal heat loads, and should always be used for final sizing.
Portable evaporative coolers lower air temperature by passing warm, dry air through water-saturated pads, which is far less expensive to run than refrigerant-based cooling but works best in low-humidity climates with good ventilation. Units like the Portacool Apex 6500 can cover thousands of square feet in a warehouse or manufacturing floor, moving large volumes of air (measured in CFM) rather than cooling a sealed, conditioned space the way refrigerant-based AC does.
Start with a load calculation based on square footage, ceiling height, insulation, window area, and internal heat sources like kitchen equipment or server rooms, not square footage alone. A licensed HVAC contractor can confirm the right tonnage and unit type for your building.
A packaged unit combines heating and cooling components in a single outdoor cabinet, while a split system separates the indoor air handler from the outdoor condenser. Packaged units are common on light commercial buildings with rooftop installation.
Yes, in low-humidity climates with adequate ventilation. Evaporative coolers move large volumes of air and cool it through water evaporation, which works well for open industrial spaces but is less effective in humid regions or fully sealed buildings.
Light commercial equipment often runs on standard 208/230V single-phase power, similar to residential systems, while larger commercial heating and refrigeration equipment frequently requires 460V three-phase service. Always confirm your building's electrical service before ordering.
Common refrigerants include R404A, R134A, and R22, though R22 is being phased out and is increasingly hard to source. Always match a replacement condensing unit to the refrigerant already in your system, or plan for a full retrofit if switching refrigerants.
Costs vary widely by capacity and type, from around $1,500 for an electric heat kit add-on to $5,000 to $8,000 or more for a multi-ton packaged system or refrigeration condensing unit. Installation, electrical work, and ductwork are typically additional.
Electrical connections, refrigerant charging, and gas line work require a licensed HVAC contractor and typically a permit. Most commercial equipment is also heavy enough to require rigging or a crane for rooftop placement, which is outside the scope of a DIY install.