Field Controls Draft Inducer Motors & Vent Parts

Field Controls Draft Inducer Motors & Vent Parts: Trusted Performance Since 1927

When a heating system struggles to vent properly, the consequences go beyond comfort — they affect safety. Field Controls has spent nearly a century solving exactly these kinds of problems. Founded in 1927, Field Controls invented the barometric draft control and is the world's leading supplier of draft controls, draft regulators, and vent dampers. That heritage is baked into every draft inducer motor and vent part the company produces.

What Field Controls Draft Inducers Do

Field Draft Inducers solve the drafting problems caused by short chimneys, undersized vent pipes, and negative building pressures. A draft inducer is a fan located inside the furnace near the heat exchanger. When the furnace begins a heating cycle, the draft inducer turns on 30 to 60 seconds before the burners are lit and continues to run throughout each heating cycle — clearing out any combustion gases that might be lingering in the heat exchanger from the previous cycle. After the burners ignite, the draft inducer continues to run in order to provide the burners with a constant source of oxygen.

This sequencing is critical for both efficiency and safety, making the quality and reliability of the inducer motor a top priority for HVAC professionals and homeowners alike.

The DI Series: A Range Built for Every Application

Field Controls offers a well-structured lineup of draft inducer motors and vent parts across their DI series, scaled to match different pipe sizes and heating appliance capacities.

• DI-1 — Designed for 3–6 inch pipe, compatible with oil or gas-fired furnaces, water heaters, and boilers. Rated at 115V AC / 60 Hz, 0.43 amp, 33 watts, and 1550 RPM.
• DI-2 — Designed for use with 5–8 inch vent or chimney pipe, built to solve drafting issues in furnaces, water heaters, and similar appliances.
• DI-3 — A larger unit at 12-9/16" x 10-1/8" x 9", rated for 8–12 inch pipe at 115V AC / 60 Hz, 3.9 amps, 186 watts, and 1725 RPM.

All DI series inducers include thermal protection and carry ETL certification for both the U.S. and Canada.

Control Kits and DI Paks for Complete System Integration

Field Controls doesn't just supply the motor — they provide a complete venting ecosystem. Draft inducers are designed for easy installation in a wide variety of applications, including oil or gas-fired furnaces, water heaters, and boilers. For venting single or multiple appliances, a control kit is used. DI Paks are available for 24-volt and millivolt applications and include all controls necessary. This means contractors can source the inducer motor, controls, and associated vent hardware from a single trusted manufacturer — reducing compatibility guesswork and simplifying installation.

Why HVAC Professionals Specify Field Controls

Field Controls is the preferred choice for HVAC needs, offering a history of excellence since 1927, with over 95 years dedicated to building quality products, continual innovation, and top-notch customer satisfaction in combustion, venting, and air purification. Their customers include original equipment manufacturers of HVAC appliances, along with over 6,000 of the top wholesale distributors throughout the U.S. who supply thousands of HVAC contractors that specify Field Controls products.

Whether you're replacing a failed inducer motor on an aging boiler or upgrading a venting system for better performance, Field Controls' DI series provides proven, code-compliant solutions engineered for the rigors of daily heating system operation.