Submersible Heaters | McMaster-Carr

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404 Products

Selecting an Immersion Heater

Screw-Plug Immersion Heaters for Water

Install these heaters into threaded container openings or pipe couplings to quickly and efficiently heat liquid through direct contact.

Compact Screw-Plug Immersion Heaters for Water

Rapidly heat water in small containers to prevent freezing or generate steam.

Sanitary Screw-Plug Immersion Heaters for Water

Heat water through direct contact in sanitary areas such as food, cosmetic, and pharmaceutical plants.

Flange-Mount Immersion Heaters for Water

Bolt the flange to a matching flange welded on a container wall.

Drop-In Immersion Heaters for Water

Often used for temporary heating in sinks and pails, these heaters have a circular base that sits at the bottom of containers. Remove them from the container after heating its contents.

Floating Immersion Heaters for Water

Often used for freeze protection in outdoor containers, these heaters float on the water’s surface and automatically keep the temperature between 45° and 65° F.

Hanging Immersion Heaters for Water

Sized to fit drums, these heaters have a bracket to hook on the side of drums and in bung openings.

Bolt-On Immersion Heaters with Overheat
Protection for Chemical Solutions

A replaceable fuse cuts off power if the heating element reaches 190° F to prevent burnout and premature failure. Bolt the flange to the top of containers.

Hanging Immersion Heaters for Chemical Solutions

Hook these heaters on the side of small drums and pails.

Screw-Plug Immersion
Heaters for Chemical Solutions

Install these heaters into threaded container openings or pipe couplings to quickly and efficiently heat liquid through direct contact. The heating element is Incoloy for excellent resistance to harsh chemicals.

Compact Screw-Plug Immersion
Heaters for Chemical Solutions

Use these heaters to efficiently heat chemicals in small containers—they’re sized to fit in compact openings that are 1 NPT or smaller.

Bend-and-Stay Immersion Heaters with
Through-Wall Fittings for Chemical Solutions

Form these heaters into any shape and install them through container walls with the attached bulkhead fittings.

Screw-Plug Immersion Heaters for Oil and Coolant

These heaters install through threaded container openings or pipe couplings.

Compact Screw-Plug Immersion
Heaters for Oil and Coolant

Heat oil or coolant inside small containers to reduce the viscosity of the liquid and improve flow.

Hanging Immersion Heaters for Coolant

Use the attached bracket to hook these heaters on the side of drums and in bung openings.

Bend-and-Stay Heaters for
Ducts, Ovens, and Dryers

Form these flexible heaters into any shape to mount them through brackets, collars, and holes. They are also known as tubular heaters.

Flow-Through Heaters for Water

Also known as circulation heaters, these install directly into pipelines.

Flow-Through Heaters for Chemical Solutions

Also known as circulation heaters, these install directly into pipelines.

Flow-Through Heaters for Coolant

Also known as circulation heaters, these install directly into pipelines.

Flow-Through Heaters for Air

Tackle high-temperature drying, shrink-wrapping, and plastic welding jobs with your everyday compressed air supply.

Thermocouple Probe Transmitters

Hazardous Location Threaded Thermocouple
Probe Transmitters for Liquids and Gases

Safely measure the temperature of liquids and gases wherever flammable gases, dust, and fibers are present. These transmitters convert readings to analog signals and send them to devices such as remote displays and programmable logic controllers (PLCs).

Threaded Thermocouple Probe
Transmitters for Liquids and Gases

Send temperature readings from tanks, containers, and pipes to devices such as remote displays and programmable logic controllers (PLCs) without the need for a separate thermocouple transmitter. Made of either stainless steel or nickel, the probe resists corroding in liquids and gases.

Threaded Thermocouple Probe Transmitters
with Thermowell for Liquids and Gases

As the probe on these transmitters measures temperature, the included thermowell shields it from vibration, impacts, and shock. These transmitters convert readings to analog signals and send them to remote displays, programmable logic controllers (PLCs), and other devices.