Helping Engineers, Contractors, and Facility Owners Find the Right HVAC Equipment Since 1994
Unit Heaters, Electric Heaters & Convectors
for Iowa, Nebraska & Western Illinois
Efficient Heating Solutions for Commercial & Industrial Buildings
From warehouses and manufacturing facilities to schools, offices, and retail spaces, reliable supplemental heating is essential for maintaining comfort and protecting buildings during cold weather. Whether you're heating a large open space, a vestibule, or an individual room, VHF Sales offers a complete line of commercial heating equipment designed for dependable performance and energy-efficient operation.
VHF Sales proudly represents Sterling HVAC and QMark, providing gas-fired, hydronic, steam, and electric heating solutions throughout Iowa, Nebraska, Western Illinois, South Dakota, and Wisconsin.
Commercial Heating Solutions
Our product offering includes a wide variety of commercial heating equipment, including:
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Gas-Fired Unit Heaters
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Electric Unit Heaters
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Hydronic Unit Heaters
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Steam Unit Heaters
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Electric Cabinet Heaters
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Wall & Ceiling Unit Heaters
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Baseboard Heaters
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Cabinet Unit Heaters
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Convectors
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Architectural Electric Heating
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Infrared Heaters
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Freeze Protection Heaters
Whether you need primary building heat or supplemental heating for specific areas, our team can help you select the right solution.
Sterling HVAC
Sterling HVAC has manufactured commercial heating equipment for more than a century and offers a complete line of unit heaters for commercial and industrial applications. Their products are engineered for durability, efficiency, and dependable performance in demanding environments.
Available Equipment
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Gas-Fired Unit Heaters
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Separated Combustion Unit Heaters
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Power-Vented Unit Heaters
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Hydronic Unit Heaters
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Steam Unit Heaters
Why Choose Sterling HVAC?
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Wide range of heating capacities
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Gas, hot water, and steam heating options
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Horizontal and vertical air discharge configurations
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Rugged cabinet construction for commercial and industrial environments
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Designed for warehouses, manufacturing plants, garages, maintenance facilities, agricultural buildings, and commercial spaces
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Factory-installed control options available
QMark
QMark is a leading manufacturer of commercial electric heating products, offering dependable solutions for nearly every electric heating application. Their product line includes unit heaters, convectors, cabinet heaters, and architectural heating products designed for schools, offices, healthcare facilities, retail buildings, and industrial spaces.
Available Equipment
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Convector Heaters
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Electric Unit Heaters
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Wall & Ceiling Unit Heaters
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Cabinet Unit Heaters
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Baseboard Heaters
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Wall Convectors
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Fan-Forced Heaters
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Architectural Electric Heaters
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Specialty Electric Heating Products
Why Choose QMark?
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Extensive line of commercial electric heating solutions
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Products for recessed, surface-mounted, and suspended installations
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Models available for a wide range of commercial applications
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Durable construction designed for long service life
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Easy integration into new construction and retrofit projects
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Ideal for supplemental heating, perimeter heating, and freeze protection
Why Choose Unit Heaters & Convectors?
Commercial unit heaters and electric heating products provide flexible heating where traditional ducted HVAC systems may not be practical.
Benefits include:
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Fast, reliable space heating
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Individual zone control
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Flexible installation options
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Durable construction for demanding environments
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Low maintenance requirements
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Supplemental or primary heating capabilities
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Solutions for gas, hydronic, steam, or electric applications