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• January 8, 2024

Industrial Tank Heating Pads: Selection, Applications & Benefits

Industrial tanks often store liquids that need temperature control.

Cold weather can create problems. Some liquids may freeze. Others may become too thick. Some chemicals may also crystallize.

Industrial tank heating pads help maintain the required temperature inside a storage tank. They attach to the outside of the tank. The pads then transfer heat through the tank wall.

This heating method works for many industrial applications. It can support freeze protection, temperature maintenance, and process heating.

However, every tank has different requirements. Tank material, product type, tank size, temperature, insulation, and operating conditions all matter.

GSC Tanks supplies industrial storage tanks and tank heating solutions for a wide range of applications. Our team can help you identify the right heating approach for your tank and stored product.

What Are Industrial Tank Heating Pads?

Industrial tank heating pads are flexible heating elements.

They are installed on the outside of a storage tank. When powered, they produce heat. The heat then moves through the tank wall.

The stored liquid absorbs this heat.

As a result, the system can help maintain the desired product temperature.

Tank heating pads can support several needs, including:

• Freeze protection
• Temperature maintenance
• Process heating
• Viscosity control
• Crystallization prevention
• Improved product flow
• Cold-weather protection
• Temperature-sensitive storage

The right heating pad depends on the tank and its application.

For example, a polyethylene tank may need a different heating solution than a steel tank. The stored product also affects the heating requirements.

Therefore, proper selection is important.

How Do Industrial Tank Heating Pads Work?

Tank heating pads use electrical energy to produce heat.

First, the pad attaches to the tank surface. Next, electricity flows through the heating element. The element then generates heat.

The heat moves through the tank wall. It then warms the stored liquid.

A temperature controller can regulate this process.

For example, the controller can turn the heater on when the temperature drops. It can then turn the heater off when the desired temperature is reached.

This process helps maintain a more stable temperature.

The heating system may include:

• Heating pads
• Temperature sensors
• Thermostats
• RTDs
• Thermocouples
• Temperature controllers
• Limit switches
• Over-temperature protection
• Control panels

The exact setup depends on the application.

Why Do Industrial Tanks Need Heating?

Many industrial liquids behave differently at low temperatures.

Some liquids freeze. Others become thicker. Certain chemicals may form crystals.

These changes can create operating problems.

For example, a thick liquid may become difficult to pump. A crystallized chemical may block valves or piping. Frozen liquid can also damage equipment.

Tank heating can help reduce these risks.

Freeze Protection

Cold weather can affect outdoor storage tanks.

Water and other liquids can freeze when temperatures fall. This can create serious problems for industrial operations.

Heating pads can help maintain the product above its required minimum temperature.

However, the system must be sized correctly. The required heating capacity depends on the product, tank, weather, insulation, and other factors.

Temperature Maintenance

Some products need a specific storage temperature.

A temperature that is too low may affect product performance. A temperature that is too high can also create problems.

Heating pads can help maintain the required temperature range.

Temperature controls make this process more precise.

Viscosity Control

Temperature affects the viscosity of many liquids.

When some liquids become cold, they become thicker. As a result, pumping becomes harder.

This can slow down production.

Controlled heating can help maintain the temperature needed for easier product handling.

Crystallization Prevention

Some chemicals can crystallize at lower temperatures.

Crystals can make pumping and transfer more difficult. They can also create maintenance problems.

Maintaining the correct temperature can help prevent unwanted crystallization.

The required temperature depends on the chemical and its concentration.

Process Temperature Control

Some industrial processes require a specific product temperature.

In these cases, freeze protection may not be enough.

The heating system must maintain a controlled temperature. It may also need sensors and automatic controls.

What Types of Tanks Can Use Heating Pads?

Heating pads can work with different tank materials.

However, the heating system must match the tank material. It must also meet the tank manufacturer’s temperature limits.

Polyethylene Tanks

Polyethylene tanks are common in chemical storage.

They offer corrosion resistance for many applications. However, polyethylene has specific temperature limits.

Therefore, heating must remain within the tank’s approved operating range.

A properly designed system can help maintain the desired product temperature without damaging the tank.

Fiberglass and FRP Tanks

FRP tanks are used in many chemical and industrial applications.

FRP construction can vary by resin and design. Therefore, heating requirements can also vary.

The heating system should match the specific FRP tank.

Carbon Steel Tanks

Carbon steel tanks are common in industrial storage.

Steel has different thermal properties than plastic. Therefore, heating requirements can differ.

The tank size, product, temperature, and environment all affect the final heating design.

Stainless Steel Tanks

Stainless steel tanks are used in many demanding applications.

These include chemical processing, food and beverage, and other industrial processes.

Heating pads can support temperature maintenance when the system is correctly selected.

How to Choose Industrial Tank Heating Pads

Choosing a heating pad starts with the application.

Do not select a system based only on tank capacity.

Several factors need to be reviewed.

1. Check the Tank Material

Start with the tank material.

Is it polyethylene? FRP? Carbon steel? Stainless steel?

Each material has different thermal properties.

Each material also has different temperature limits.

Therefore, the heating system must match the tank construction.

2. Identify the Stored Product

Next, identify the liquid inside the tank.

Different liquids require different heating conditions.

Important information may include:

• Product name
• Concentration
• Specific gravity
• Specific heat
• Viscosity
• Freezing point
• Crystallization point
• Required storage temperature
• Maximum operating temperature

This information helps determine the heating requirements.

3. Determine the Required Temperature

Define the target temperature.

Also identify the lowest acceptable temperature.

For example, a freeze-protection system may have a low target temperature.

A process-heating system may require much more heat.

The two applications should not use the same assumptions.

4. Consider the Ambient Temperature

Outdoor tanks face changing weather.

Winter temperatures can increase heat loss. Wind can also affect heat loss.

Therefore, identify the lowest expected ambient temperature.

Also consider whether the tank is indoors or outdoors.

5. Consider Tank Size

Tank size affects heating requirements.

However, capacity alone does not determine the heating system.

Tank diameter and height also matter.

Tank shape and surface area can affect heat transfer.

6. Consider Insulation

Insulation can reduce heat loss.

It can help the tank hold heat for longer periods.

As a result, the heating system may operate less often.

The need for insulation depends on the application.

7. Check Electrical Requirements

The heating system needs the correct electrical supply.

Consider:

• Voltage
• Current
• Total power
• Number of heating pads
• Controllers
• Sensors
• Wiring
• Installation conditions

A qualified professional should verify the electrical installation.

How Many Heating Pads Does a Tank Need?

There is no single answer.

Every tank has different heating requirements.

The number of pads depends on several factors.

These include:

• Tank size
• Tank material
• Product type
• Product volume
• Starting temperature
• Target temperature
• Ambient temperature
• Insulation
• Required heat-up time
• Heating-pad output

A small tank may need only a limited heating area.

A large tank may need several pads.

Pad placement also matters.

Therefore, the heating system should be designed for the actual application.

Industrial Tank Heating Pads vs. Other Heating Methods

Heating pads are one option for industrial tank heating.

Other methods may also work.

The best option depends on the tank and process.

Heating Pads

Heating pads attach to the outside of the tank.

They provide direct surface heating.

Common advantages include:

• External installation
• Flexible placement
• Compact design
• No heating element inside the liquid
• Suitable for many tank applications
• Useful for freeze protection
• Useful for temperature maintenance

They can work with both plastic and metal tanks when properly selected.

Heat Tracing

Heat tracing uses heating cable or similar technology.

It can be useful for tanks and connected piping.

It can also help protect pipes from freezing.

However, installation depends on the equipment and application.

Immersion Heaters

Immersion heaters sit inside the stored liquid.

They provide direct heat transfer.

However, the heater must be compatible with the liquid.

The tank design must also support this type of heating.

Therefore, immersion heating is not suitable for every application.

Steam Coils and Heat-Transfer Systems

Large facilities may use steam or other heat-transfer systems.

These systems can work well where suitable utilities already exist.

However, they require more process infrastructure.

The right method depends on the facility and application.

Industrial Applications for Tank Heating Pads

Tank heating has applications across many industries.

Chemical Storage

Chemical storage often requires temperature control.

Some chemicals become more viscous at low temperatures.

Others may crystallize.

Heating can help maintain the required storage conditions.

The chemical must always be evaluated before selecting the heating system.

Food and Beverage

Food and beverage facilities may need controlled temperatures.

Heating can support certain storage and processing applications.

The system must meet the requirements of the specific process.

Mining

Mining operations often use outdoor tanks.

These tanks may store chemicals and process liquids.

Cold temperatures can affect product handling.

Tank heating can help maintain suitable operating conditions.

Power Generation

Power plants use many types of storage tanks.

Some stored liquids may need temperature control.

Heating can help maintain suitable storage and process conditions.

Pulp and Paper

Pulp and paper facilities use various process chemicals.

Some of these products can become difficult to handle when cold.

Heating can help maintain the required temperature.

Agriculture

Agricultural facilities may store fertilizers and chemicals.

Some products can be affected by cold weather.

Tank heating can help maintain suitable storage conditions.

Water and Wastewater Treatment

Water treatment facilities often store treatment chemicals.

Some chemicals need temperature control.

Heating can help protect these materials from cold-weather problems.

How Are Tank Heating Pads Installed?

Installation depends on the heating pad design.

It also depends on the tank material.

Some systems use adhesive backing.

Others use straps, hooks, buckles, or other mounting methods.

Possible installation methods include:

• Adhesive mounting
• Straps
• Hooks
• Buckles
• Mounting hardware
• Magnetic mounting on compatible metal surfaces

The heating pad should make good contact with the tank surface.

This helps improve heat transfer.

The tank surface should also be clean and suitable for the selected mounting method.

Electrical connections must be installed correctly.

Outdoor installations also need suitable environmental protection.

Temperature Control for Industrial Tank Heating

Temperature control is an important part of the system.

A heating pad alone may not provide precise temperature control.

Sensors can monitor the tank or product temperature.

The controller can then adjust the heating cycle.

Common temperature-control components include:

• Thermostats
• RTDs
• Thermocouples
• Temperature controllers
• Limit switches
• High-temperature protection
• Control panels
• Alarms

The right system depends on the required level of control.

A simple freeze-protection application may need less control than a process-heating application.

Do Tank Heating Pads Need Insulation?

Insulation can improve heating performance.

Without insulation, heat can escape from the tank.

This is especially important outdoors.

Cold air and wind can increase heat loss.

Insulation helps reduce this loss.

It can also help maintain a more stable product temperature.

Potential benefits include:

• Lower heat loss
• Better temperature stability
• More efficient heating
• Less frequent heater operation
• Better cold-weather performance

However, not every tank needs the same insulation.

The insulation should match the application.

Safety Considerations for Tank Heating

Tank heating requires careful planning.

The heating system must match the tank and product.

Follow Tank Temperature Limits

Never exceed the tank manufacturer’s temperature limit.

This is especially important for plastic tanks.

Excessive heat can damage the tank.

Check Chemical Compatibility

Always review the stored product.

Make sure the heating system is suitable for the application.

Also consider the product’s temperature limits.

Use Temperature Protection

Temperature controls can help prevent overheating.

Depending on the application, the system may need high-temperature protection.

Follow Electrical Requirements

Electrical equipment must be installed correctly.

Use components that match the operating environment.

Follow applicable electrical requirements and codes.

Consider Hazardous Areas

Some industrial facilities have classified hazardous locations.

Standard heating equipment may not be suitable for these areas.

If the tank is in a hazardous location, verify the equipment’s certification and suitability before installation.

Proper tank heating is only one part of safe tank operation. Facilities must also consider spill prevention and containment where applicable. The U.S. EPA provides guidance on secondary containment for bulk storage containers, including capacity and precipitation freeboard considerations. EPA guidance on secondary containment

Consider Empty-Tank Conditions

Heating requirements can change when the tank level changes.

Therefore, the heating system should be evaluated for normal operating conditions.

Follow the heater and tank manufacturer’s operating instructions.

Common Tank Heating Problems

Poor heating performance can have several causes.

Undersized Heating System

An undersized system may not maintain the target temperature.

This problem can become worse during cold weather.

Poor Insulation

Heat can escape quickly from an uninsulated tank.

The heater may then run continuously.

Incorrect Temperature Setting

An incorrect set point can affect product quality.

It can also increase energy use.

Poor Heating-Pad Placement

Uneven pad placement can cause uneven heating.

The heating area should match the tank and application.

Wrong Heating System

Not every heating pad works with every tank.

The tank material and product must be considered.

Poor Temperature Control

A suitable sensor and controller can improve temperature stability.

Without proper controls, the system may not provide the required performance.

Industrial Tank Heating Pad Selection Checklist

Before selecting a heating system, collect the following information.

Tank Information

• Tank material
• Tank capacity
• Tank diameter
• Tank height
• Tank shape
• Tank orientation
• Indoor or outdoor location

Product Information

• Product name
• Concentration
• Specific gravity
• Viscosity
• Freezing point
• Crystallization temperature
• Required storage temperature
• Maximum allowable temperature

Environmental Information

• Minimum ambient temperature
• Maximum ambient temperature
• Wind exposure
• Indoor or outdoor location
• Existing insulation

Heating Information

• Freeze protection or process heating
• Starting temperature
• Target temperature
• Required heat-up time
• Required temperature stability
• Heating-pad placement

Electrical Information

• Available voltage
• Available power
• Number of heating pads
• Temperature controls
• Sensors
• Alarms
• Hazardous-area requirements

Having this information ready can make the selection process easier.

Why Choose GSC Tanks?

Choosing the right heating solution starts with the tank.

It also starts with the stored product.

GSC Tanks supplies industrial storage tanks for many applications. These include chemical, food and beverage, power generation, mining, agriculture, pulp and paper, and water and wastewater applications.

The company works with several tank materials.

These include:

• Polyethylene
• Fiberglass and FRP
• Carbon steel
• Stainless steel
• Alloy
• Reinforced concrete

GSC Tanks also provides industrial tank heating solutions.

The right heating system depends on the complete application.

Therefore, our team can review your tank requirements and help identify a suitable solution.

When requesting a heating solution, provide as much information as possible.

Include the tank material, tank size, stored product, target temperature, ambient conditions, and insulation details.

This information helps create a more suitable heating approach.

Frequently Asked Questions

What are industrial tank heating pads?

Industrial tank heating pads are external heating elements.

They attach to the outside of a storage tank. They transfer heat through the tank wall and into the stored liquid.

What are tank heating pads used for?

They can help with several applications.

These include freeze protection, temperature maintenance, viscosity control, crystallization prevention, and process heating.

Can heating pads be used on polyethylene tanks?

Yes, heating systems can be designed for certain polyethylene tanks.

However, the heating temperature must stay within the tank’s approved limits.

Can heating pads be used on steel tanks?

Yes.

Heating pads can be used with many steel tanks.

The heating requirements depend on tank size, product, temperature, and operating conditions.

Can tank heating pads prevent freezing?

They can help provide freeze protection.

However, the system must be correctly sized for the tank and product.

Ambient conditions also affect the required heating capacity.

Do heating pads need a temperature controller?

A temperature controller can provide better control.

The exact control system depends on the application.

More demanding processes may require sensors, controllers, alarms, and over-temperature protection.

Do tank heating pads require insulation?

Not always.

However, insulation can reduce heat loss.

It can also improve temperature stability and heating efficiency.

How many heating pads does my tank need?

The answer depends on the application.

Tank size is only one factor.

Product type, tank material, target temperature, ambient temperature, insulation, and required heat-up time also matter.

Can heating pads be used for chemical tanks?

Yes.

They can support many chemical storage applications.

However, the chemical, concentration, tank material, and temperature requirements must be reviewed first.

Are heating pads suitable for hazardous areas?

Some heating systems are designed for specific hazardous environments.

However, not every heating pad is suitable.

Always verify the equipment certification and site requirements before installation.

Get an Industrial Tank Heating Solution

The right tank heating system can improve temperature control.

It can also help protect stored products from cold-weather problems.

However, proper selection is essential.

Tank material, product type, tank size, temperature, insulation, and environmental conditions all affect the system.

GSC Tanks can help you find the right industrial tank heating solution for your application.

Contact GSC Tanks to discuss your requirements.

Provide your tank details and heating requirements. Our team can then help you determine the right approach for your industrial storage application.

• Industrial tank heating pads
• Industrial tanks