TUTCO DUCT
E-Series Round Duct Heaters
TUTCO E-Series Round Duct Heaters (EPH), which offer the widest range of KW options in the marketplace, are ideal for use with heat pumps, air conditioners, or other forced air HVAC systems. Our round Series Duct Heaters are pre-wired with customer specified integrated control boxes and available in both single phase and three phase solutions up to 480V. They are controlled by contactors, relays, sequencers or solid state devices. These are available in 6″, 8″, 10″ and 12″ diameters.
All TUTCO Round Series Duct Heaters are UL 1996 Listed with UL and ETL for US and Canada.
Standard 2-Week Lead Times
Check out the new features and Standard 2-Week Lead Times that are now available on all E-Series Duct Heaters through the new TUTCO Customer Portal.
TUTCO combines flexible heater design with responsive manufacturing and engineering support. Standard commercial duct heaters are available with a two-week lead time, with expedited manufacturing options for projects requiring faster turnaround. Through the TUTCO customer portal, customers can request quotes, review pricing, and manage orders. TUTCO's engineering team can also assist with heater sizing, airflow requirements, electrical configurations, and custom designs. Whether specifying heaters for a new HVAC installation, replacing existing equipment, or integrating electric heating into an OEM system, TUTCO provides the product flexibility and support to meet project requirements.
Applications
TUTCO E-Series VAV heaters are designed for commercial HVAC systems requiring flexible electric heating configurations, including:
- Single-duct VAV terminal unit reheat
- Multi-zone commercial HVAC systems
- Supplemental and auxiliary heating
- Primary electric duct heating
- Space heating and temperature control
- Air reheating and recirculation
Designed for Installation Flexibility
The E-Series heater's Flip-Able design simplifies specification, ordering, and installation. Its symmetrical construction allows a single heater configuration to accommodate four mounting positions, reducing the need for multiple heater designs. This flexibility is particularly valuable in commercial HVAC installations where duct orientation, available space, and terminal placement can vary.
Key design advantages include:
- Four mounting positions: One heater can be rotated to accommodate different installation requirements.
- Symmetrical construction: Eliminates the need for separate left- and right-hand heater configurations.
- Simplified specification: One heater design accommodates multiple installation requirements.
- Flexible mounting options: Available in slip-in, flanged, and custom configurations.
- Reduced installation complexity: Helps minimize field modifications and installation delays.
Engineered for Reliable Electric Heating
TUTCO E-Series Electric Duct Heaters utilize open-coil resistance heating elements designed to transfer heat directly to the air moving through the duct system. The open-coil design provides effective heat transfer while maintaining low resistance to airflow. The heaters are available with 80/20 nickel-chromium resistance wire, stainless steel terminals, and optional derated coils to accommodate specific performance and operating requirements. A wide range of electrical configurations and custom staging options allows E-Series heaters to be matched to the heating capacity, airflow, and control requirements of the HVAC system.
Available Configurations and Options
TUTCO offers a variety of electrical, mechanical, and control options to accommodate project specifications.
Additional configurations and custom options are available to meet specific HVAC system requirements.
| Category | Available Options |
| Supply Voltage | 120-600V |
| Electrical Phase | Single-Phase or Three-Phase |
| Heating Control | Staging Options |
| Mounting | Slip-in, Flanged, or Custom Designs |
| Control Box | Standard, Recessed, or Offset Configurations |
| Electrical Components | Disconnecting Contactors, Stainless Steel Terminals |
| Keating Elements | 80/20 Nickel-Chromium Resistance Wire, Derated Coils |
| Construction | Stainless Steel Construction, Vapor Barrier, Gasketed Cover |
| Temperature Control | Compatible Room Thermostat |
Frequently Asked Questions
E-Series Round Duct Heaters are available in single- and three-phase configurations and can be supplied with customer-specified integrated controls. Depending on the application, heaters can be controlled using contactors, relays, sequencers, or solid-state devices. Additional options include custom staging, disconnecting contactors, derated coils, gasketed covers, stainless steel construction, and compatible room thermostats.
No. The E-Series Round Duct Heater is designed to operate with airflow in either direction, so there is no need to specify right- or left-hand airflow when ordering. This provides greater installation flexibility and can simplify heater selection for HVAC contractors and system designers.
Yes. TUTCO E-Series Round Duct Heaters are approved for zero-clearance installation with properly rated flexible duct. Flex duct rated for 250°F (121°C) can be mounted directly to the heater, eliminating the need for an additional transition or section of metal ductwork.
Yes. E-Series Round Duct Heaters are well suited for use with heat pumps and can provide supplemental or auxiliary electric heat when additional heating capacity is required. They can also be integrated with air conditioners and other forced-air HVAC systems.
A round electric duct heater is installed directly into round HVAC ductwork to heat air as it passes through the system. TUTCO E-Series Round Duct Heaters can provide primary, secondary, auxiliary, or supplemental heat and can also be used for reheating and recirculating air in commercial and residential HVAC systems.
