Unit Heater Parts

Unit Heater Parts & Replacement Components

Shop unit heater parts and replacement components for commercial, industrial, garage and warehouse heating equipment. MasterBuilder Mercantile carries replacement parts for gas-fired unit heaters and commercial heating systems from leading HVAC manufacturers.

Our selection includes control boards, gas valves, motors, fan blades, power venters, pressure switches, igniters, flame sensors, limit switches, transformers and other components used to service and repair unit heaters.

Gas Unit Heater Replacement Parts

Gas-fired unit heaters use a combination of ignition, airflow, gas control and safety components to operate properly. When servicing an existing heater, replacement parts should be matched to the equipment manufacturer, model and original part number whenever possible.

Common unit heater replacement parts include:

• Control boards and ignition controls
• Gas valves and gas control components
• Blower and fan motors
• Fan blades and propellers
• Power venters and draft inducer assemblies
• Igniters and electrodes
• Flame sensors
• Pressure switches
• Limit and temperature switches
• Transformers, relays and electrical controls

Unit Heater Control Boards & Ignition Parts

Control boards and ignition components manage important operating functions within compatible gas unit heaters. Available replacement components include ignition control boards, ignition modules, igniters, electrodes, flame sensors and related electrical controls.

When replacing a control board or ignition component, verify the heater model and original manufacturer part number. Manufacturers may revise or supersede components over time, so a current replacement part may differ in appearance from the original while remaining the specified replacement.

Unit Heater Motors, Fans & Draft Inducers

Unit heater airflow components include blower motors, fan motors, fan blades, propellers, power venters and draft inducer assemblies. These components should be selected according to the heater model and manufacturer specifications to ensure the correct electrical requirements, rotation, mounting and performance.

For replacement motors and fan assemblies, verify the original part number and equipment model before ordering whenever possible.

Unit Heater Gas Valves, Pressure Switches & Safety Controls

Gas valves, pressure switches, limit switches and other safety controls are designed for specific heater operating requirements. These components play important roles in controlling fuel flow, monitoring operating conditions and maintaining the heater's designed sequence of operation.

Replacement controls should match the specified manufacturer part number or approved replacement for the unit heater being serviced.

Beacon Morris Unit Heater Parts

MasterBuilder Mercantile carries a broad selection of Beacon Morris replacement parts for commercial and garage unit heaters, including motors, fan blades, igniters, pressure switches, limit controls, control boards, gas valves and other service components.

Browse our complete Beacon Morris parts and heating equipment collection to find replacement components by model and part number.

Sterling HVAC Unit Heater Parts

Our Sterling HVAC selection includes replacement parts for Sterling unit heaters and commercial heating equipment, including control boards, motors, fan blades, power venters, igniters, pressure switches, safety controls and other service components.

Browse our complete Sterling HVAC unit heater parts collection to find replacement components by Sterling part number and heater model.

Finding the Correct Unit Heater Part

The most reliable way to identify a replacement unit heater part is to locate the equipment model and serial information along with the part number from the existing component whenever available.

Search by the manufacturer's part number or heater model rather than relying only on the appearance of the component. Parts that look similar may have different electrical ratings, dimensions, operating specifications or equipment compatibility.

If an original component has been discontinued or superseded, review the current manufacturer replacement information and product specifications before ordering.

Shop Unit Heater Parts Online

MasterBuilder Mercantile supplies unit heater parts and HVAC replacement components to contractors, service technicians, facilities and customers throughout Canada and the United States. Browse the collection above by manufacturer, part number or component type to find the replacement part required for your heating equipment.