PDF Catalog

Duct Heaters

WATTCO™ duct heaters come in various sizes and dimensions to fit any compartment. There are three types of duct heaters available: open coil, tubular or finned tubular heating elements that are either flanged or inserted in the duct. Air duct heaters are primarily used in air flowing ventilation systems and comfort-heating applications while process duct heaters are mainly used for industrial process heating applications (ovens that require re-circulated air or forced circulation). WATTCO™ designs and configures your electric heating element according to your specifications. Our team is dedicated to research and development, using the latest technologies while striving to meet every customer’s needs by manufacturing high quality industrial heating products. Since 1969, WATTCO™ has expertise in developing and manufacturing electrical heating elements that make Wattco duct heaters, the most easily adaptable industrial heating solution for most non-pressurized, air-heating systems.

A broad range of custom-built electric duct industrial heaters with capacities up to 1000kW is available upon request. WATTCO™ heaters can be used for applications with the following voltages: • 347 volts/1 phase • 600 volts/1 phase • 600 volts/3 phases • 208/240 volts/1 phase • 208 volts/3 phases WATTCO™ duct heaters have the international, American recognized, Canadian Standards Association (CSA us) label, which set the standards for the electric heating industry. Duct heaters can include proper built-in safety devices to extend the service life of the heater. Get a quote on a duct heater today. WATTCO also manufactures other industrial heating products such as infrared heaters, control panels, immersion heaters and more. Click here to view all of our products

TERMINAL HOUSINGS

Coiled duct heater

duct heater finned

Duct Heater Slip into Duct

Tubular duct heater

X section tubular duct heater

Specifications Applications Features & Benefits Literature & Downloads

Finned Tubular Elements vs. Unfinned tubular elements

Finned tubular elements	Unfinned Tubular elements
The most common design	Available for approved special orders only
Include the highest wattage/cross section duct area	Increase corrosion resistance High humidity environments Corrosive chemical contaminants in the air stream
Energy saver	Protect from electrical shock
Made of a steel tube with a corrugated steel fin wrapped around it and brazed together	Made of steel or stainless steel tube
Maximize the heat transfer surface of the element	Can be installed close to a register or grill
Provide lower operating temperature	N/A
Designed for low maintenance	Designed for low maintenance

KEY FEATURES	BENEFITS
16-gauge satin coat steel. Exclusive modular construction with stock frame components used with 2” verticaland horizontal dimensional increments for faster delivery; Single and three-phase tensions; Stainless steel supports; Field replaceable heating elements, if required; ¼” (6 mm) inside diameter thermophile; 3 ½ ” (90 mm) thick insulation; General purpose terminal enclosure; Primary linear cutout: 160ºF (71ºC) 277/600 VAC 25/10 AMP non-inductive Secondary linear cutout: Manual reset with back-up magnetic contactor on units of 300V, 30 kW and less. 225ºF (107ºC) 277/600 VAC 25/10 AMP non-inductive Special sizes, wattages, and materials available upon request; Built stainless steel frames available upon request; American and Canadian Standards Associations (CSA, CSA us & UL) certified.	Versatile Corrosion and oxidation resistant Easy to maintain Easy to install Durable Compatible with local power supplies Built for safety Maximal dielectric strength and heat transfer Minimal heat loss Maintained wiring cooler Clean heat Easy service Minimal downtime

KEY FEATURES

BENEFITS

16-gauge satin coat steel.
Exclusive modular construction with stock frame components used with 2” verticaland horizontal dimensional increments for faster delivery;
Single and three-phase tensions;
Stainless steel supports;
Field replaceable heating elements, if required;
¼” (6 mm) inside diameter thermophile;
3 ½ ” (90 mm) thick insulation;
General purpose terminal enclosure;
Primary linear cutout:
- 160ºF (71ºC)
- 277/600 VAC
- 25/10 AMP non-inductive
Secondary linear cutout:
- Manual reset with back-up magnetic contactor on units of 300V, 30 kW and less.
- 225ºF (107ºC)
- 277/600 VAC
- 25/10 AMP non-inductive
Special sizes, wattages, and materials available upon request;
Built stainless steel frames available upon request;
American and Canadian Standards Associations (CSA, CSA us & UL) certified.

Versatile
Corrosion and oxidation resistant
Easy to maintain
Easy to install
Durable
Compatible with local power supplies
Built for safety
Maximal dielectric strength and heat transfer
Minimal heat loss
Maintained wiring cooler
Clean heat
Easy service
Minimal downtime

Latest blogs

Flange Heaters for Waste Oil Applications

News
Nov 6 2019

Less waste = more revenue. Waste is a major industrial expense, it results in getting less use out of high-cost products as well as increasing disposal costs. Wasteful processes drive up the costs of operation, reducing your bottom line. Oil, for ins...

Low-Density Heaters For Bitumen Processing

News
Oct 31 2019

The density of a heater refers to the wattage per square inch (W/in2). The lower the density, the lower the wattage per in2. Heavy oils require a lower watt density for proper heating. Bitumen processing is especially reliant on low-density heaters. ...

Advantages of Preheating Crude Oil With Electric Flanged Heaters

News
Oct 4 2019

Crude oil refining is one of the most complex chemical processes in the petrochemical industry. As such, it requires sophisticated equipment for accuracy and efficiency. Oil is a diverse substance that we use for everything from vehicle fuel to roofi...

Over-The-Side Heaters for Industrial Chemical Heating

News
Sep 27 2019

Over-the-side (OTS) heaters are the most popular type of industrial heater. They can directly address the core challenges of chemical heating: Uniform Heat Distribution Accurate Temperature Safety Simplicity 1. Uniform Heat Distribution Uniformity in...

Immersion Heater Products & Design Considerations

News
Sep 19 2019

“As slow as molasses in January” is a classic Americanism. It references the agonizing slowness found in government, management, and even molasses. Many industries rely on the flow of viscous fluids. The proper application of immersion heating dr...

Electric Boiler Heaters for Power Generation

News
Aug 12 2019

There are several different heaters in the power generation industry. Electric heaters play an important role, offering reliability and performance. In steam power generation facilities, electric boiler heaters play a pivotal role. How Electric Boile...

The Importance of ASME Vessels in Boiler Heater Safety

News
Jul 31 2019

The ASME Boiler & Pressure Vessel Code (BPVC) is the set of codes and standards to increase the safety of boiler & pressure vessels. The code regulates standards for the construction and design of boilers and pressure vessels. Created and mai...

Application of Circulation Heaters in Power Generation Facilities

News
Jul 9 2019

Electric circulation heaters are versatile, dependable hardware. In the power generation industry, they play an important role in a number of essential processes. Circulation heaters can be found in all types of power generation including: Coal Natur...

What Are The Different Types of Control Panels?

News
Jul 2 2019

The control panel is the brain of a heating system. It controls and regulates operations for optimal performance. To get the best results, you need to pair the right brain with the right system. This guide explains the different types of control pane...

COME VISIT US AS THE 2019 OGA SHOW IN KUALA LUMPUR CONVENTION CENTRE – MALAYSIA – HALL 4-5 BOOTH 4806

News
Jun 13 2019

Advantages of Electric Immersion Heaters in Chemical Manufacturing

News
Jun 7 2019

The chemical manufacturing industry has unique challenges in the production, storage, and transportation of materials. Corrosion, costs, and controls effect quality and efficiency. Electric immersion heaters are the best heating solution for the chem...

Electric Heaters For The Foodservice Industry

News
Jun 5 2019

The foodservice industry relies on heating for food preparation, presentation, and sanitation. In this article, we examine the heating equipment in Foodservice and the advantages of electric power. The Roles of Electric Heating in the Foodservice Ind...

Benefits of Immersion Heating for Industrial Tank & Reservoir Heaters

News
May 6 2019

Tank and reservoir heating is an essential task in many industrial processes. It maintains mediums in a usable state, allows for preheating, prevents freezing, and avoids loss or damage to the product. Today, we’re looking at some of the core benef...

Immersion Heaters for Process Fluids

News
Apr 14 2019

Process fluids are found in every major industry, and process fluid heating is an essential task for each of these. Electric immersion heaters are the ideal solution for heating industrial process fluids. This article offers a review of common...

Hot Oil Heating vs Steam Boiler Systems for Tank Heating

News
Mar 25 2019

There is a big increase in demand for electric circulation heaters. Yet, for tank heaters, steam boilers are still more commonly used than hot oil systems. Is steam heating better, or is the industry slow to adapt? This article compares thermal fluid...

Selecting Immersion Heaters for Curing Cement

News
Mar 22 2019

Cement is essential to infrastructure. As far back as 700 BC, people were building kilns to prepare cement for homes, flooring, and cisterns. Today, we still use cement heavily in the construction industry. But our heating technology is far more soph...

Retrofitting Equipment With Electric Immersion Heaters: A Guide

News
Mar 11 2019

Electric power is in high demand for industrial heating. It’s more efficient and cost-effective than fossil fuel heaters. When buying new immersion heaters, companies are turning to electric. But if systems and processes are already in place, repla...

Tank Heating Considerations for Bitumen Applications

News
Mar 6 2019

Bitumen is a naturally occurring product that forms the basis of most modern infrastructure. From the walls of Babylon to today’s roads and highways, our society relies heavily on bitumen. For most uses, bitumen needs to be transformed f...

Heat treating	Air drying operations	Air handling equipment
Forced air comfort heating	Core drying	Fan coils
Booster air heater	Air pre-heating	Terminal reheating
Multizone reheating	Heat pump auxiliary systems	Return air heating
Resistor load banks	Annealing

Our Products

Duct Heaters

Finned Tubular Elements vs. Unfinned tubular elements

Duct Heater Applications

Latest blogs

Flange Heaters for Waste Oil Applications

Low-Density Heaters For Bitumen Processing

Advantages of Preheating Crude Oil With Electric Flanged Heaters

Over-The-Side Heaters for Industrial Chemical Heating

Immersion Heater Products & Design Considerations

Electric Boiler Heaters for Power Generation

The Importance of ASME Vessels in Boiler Heater Safety

Application of Circulation Heaters in Power Generation Facilities

What Are The Different Types of Control Panels?

COME VISIT US AS THE 2019 OGA SHOW IN KUALA LUMPUR CONVENTION CENTRE – MALAYSIA – HALL 4-5 BOOTH 4806

Advantages of Electric Immersion Heaters in Chemical Manufacturing

Electric Heaters For The Foodservice Industry

Benefits of Immersion Heating for Industrial Tank & Reservoir Heaters

Immersion Heaters for Process Fluids

Hot Oil Heating vs Steam Boiler Systems for Tank Heating

Selecting Immersion Heaters for Curing Cement

Retrofitting Equipment With Electric Immersion Heaters: A Guide

Tank Heating Considerations for Bitumen Applications

Common Industries that Wattco works with

Chemical

Oil and Gas

Food

Defense

HVAC

Pharmaceutical

Case Studies View All

Wattco News View All

Most Popular Blogs View All

Downloads