Make-Up Air Systems
Modine’s offers an array of indoor and outdoor heating and ventilating equipment including direct and indirect gas-fired gravity-vented, power-vented, and separated combustion make-up air units. Available in various configurations, the units can satisfy a building’s heating, make-up air, cooling, or ventilating requirements.
Modine’s direct gas-fired make-up air units provide an energy-efficient and cost-effective solution for delivering tempered 100% outside air to commercial or industrial spaces. Designed for indoor or outdoor installation, models MCV (single-speed) and MVV (variable-speed) are ideal for maintaining proper building pressure, air quality, and temperature control.
Modine’s indoor power-vented make-up air systems utilize an integral power exhauster for efficient horizontal or vertical venting, minimizing vent losses and improving building energy efficiency. Ideal for typical indoor environments, they offer high static pressure capabilities and a wide range of airflow options, ranging from 750 to 14,500 CFM.
Modine’s indoor indirect-fired separated combustion systems are designed for buildings with hostile atmospheric conditions, drawing 100% fresh outside air for combustion. Perfect for dusty, humid, or dirty environments, they feature fully gasketed doors to protect internal components and help eliminate off-cycle heat loss, making them a top choice for harsh conditions. With 80% thermal efficiency, multiple model sizes (100,000–1,200,000 BTU/hr), and customizable configurations, these systems are engineered to meet your unique heating and make-up air needs.

Modine’s outdoor power-vented gas-fired system units deliver dependable, high-performance heating for demanding commercial and industrial HVAC applications. These duct furnace and blower combinations are available in multiple configurations—including HBP, HDP, HCP, and HPP models—to support everything from recirculating heating to 100% outside air make-up air systems, with or without integrated cooling.