Gas-Fired Duct Furnaces
Gas-Fired Duct Furnace Manufacturers
Modine
Featured Gas-Fired Duct Furnaces
Modine - Gas-Fired Indoor Power Vented Duct Furnace
Modine's Model DFP Gas-Fired Indoor Power Vented Duct Furnace is designed to provide efficient heating solutions for commercial and industrial applications. Ideal for installations requiring horizontal vent systems or located in spaces with negative pressure, this unit ensures reliable performance and adaptability.
Features
Thermal Efficiency
Achieves 81% thermal efficiency, optimizing energy consumption for cost-effective heating.
Construction
Features a 20-gauge aluminized steel cabinet, ensuring durability and resistance to corrosion.
Gas Operation
Compatible with both natural and propane gas, offering flexibility based on fuel availability.
Venting Options
Equipped with a factory-installed power venter and capable of withstanding up to 3.0″ W.C. external static pressure, suitable for various venting configurations.
Control System
Includes a 115V control step-down transformer with 24V gas controls, facilitating easy integration with existing systems.
Specifications
Input Capacity
Available in sizes ranging from 75,000 to 400,000 Btu/Hr, catering to diverse heating requirements.
Airflow Capacity
Supports airflow ranging from 556 to 14,500 CFM, accommodating various ductwork and space configurations.
Dimensions
Compact design with dimensions suitable for both vertical and horizontal installations. Specific measurements can be obtained from the product manual.
Certifications
ETL certified for use in the US and Canada, ensuring compliance with safety and performance standards.
Control Options
Available with two-stage or electronic modulation controls, enhancing temperature regulation and energy efficiency.
Safety Features
Offers high and low gas pressure switches, timed freeze protection, and a supply air fire stat to ensure safe operation.
Installation Accessories
Provides adjustable differential air flow proving systems, fan delay timers, and both left and right side access options for flexible installation.
Warranty
Documents
Modine - Indoor Separated Combustion Duct Furnace
Modine's indoor separated combustion duct furnaces are engineered for buildings with hostile atmospheric conditions (high humidity/negative pressure). Featuring 81% thermal efficiency and stainless steel components, these units draw combustion air from outside while integrating with building ductwork.
Features
Hostile Environment Design
409 stainless steel heat exchanger, burner, and drip pan resist corrosion in high-humidity areas .
Efficient Combustion
External air intake eliminates off-cycle vent losses and ensures clean combustion .
Safety Systems
Single-stage intermittent pilot with continuous retry ignition and high-limit controls .
Specifications
Certifications
ETL certified (US/Canada) with 3.0″ W.C. static pressure rating .
Venting
Horizontal/vertical 2-pipe or concentric venting options .
Controls
24V gas controls with terminal board for thermostat/BMS integration .
Warranty
Documents
Modine - Indoor Gravity-Vented Duct Furnace
Modine's gravity-vented duct furnaces provide efficient heating for commercial spaces where power venting isn't practical, utilizing natural draft venting with 80% thermal efficiency.
Features
Simple Venting
Vertical flue requires no electrical venter.
Durable Construction
Aluminized heat exchanger with 10-year warranty.
Specifications
Input Range
40,000-400,000 BTU/hr natural gas models.
Airflow
Up to 8,000 CFM with 0.5″ w.g. static.
Warranty
Documents
Modine - Outdoor Power Exhausted Duct Furnace
The PDF Series is a gas-fired duct furnace specifically engineered for outdoor installations, featuring a power exhaust system that ensures reliable combustion in negative pressure environments.
Features
All-Weather Housing
NEMA 3R rated enclosure with corrosion-resistant coating.
Dual Venting Options
Standard power vent or optional separated combustion (PDF-SC models).
High Efficiency
80% AFUE rating with 10:1 turndown modulating burner.
Specifications
Capacity
75,000-400,000 BTU/hr inputs (natural gas/propane).
Airflow
1,500-12,000 CFM with 0.5″ w.g. external static.
Construction
16ga aluminized steel cabinet with 409 stainless heat exchanger.
Warranty
Documents
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