TUTCO DUCT
E-Series VAV Electric Duct Heaters
TUTCO E-Series VAV Flip-Able Electric Duct Heaters are designed for single-duct Variable Air Volume (VAV) HVAC systems, providing flexible installation, reliable electric heating, and a wide range of configuration options. Engineered with a symmetrical design, these heaters eliminate the need for separate left- and right-hand models and can be installed in four different mounting positions. E-Series VAV heaters can be installed as stand-alone electric duct heaters or integrated directly with VAV terminal units. Each heater includes a radiant safety diffuser screen that can be positioned on either side to accommodate inlet airflow orientation. UL and ETL listings support multiple installation configurations within 20 inches of the VAV valve. With lower standard heating element watt density, greater duct-to-heat coverage, and expanded kilowatt options, TUTCO E-Series VAV heaters offer a versatile solution for commercial HVAC heating and reheat applications.

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 VAV 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 VAV terminal placement can vary.
Key design advantages include:
- Four mounting positions: One heater can be rotated to accommodate different installation requirements.
- Symmetrical construction: Eliminates separate right- and left-hand heater configurations.
- Flexible VAV integration: Suitable for stand-alone installation or direct mounting to single-duct VAV systems.
- Repositionable radiant safety diffuser: Can be installed on either side of the heater based on inlet airflow orientation. Close-coupled installation: UL and ETL listed for multiple applications within 20 inches of the VAV valve.
- Expanded heating options: A wider selection of high- and low-kilowatt configurations across available heater sizes.
Engineered for Reliable Electric Heating
TUTCO E-Series VAV Duct Heaters combine flexible mechanical design with heating element configurations developed for commercial HVAC applications. Lower standard heater wire watt density and increased duct-to-heat coverage help distribute heating capacity across the duct opening. A broad range of kilowatt ratings provides flexibility when matching electric heating capacity to airflow and zone requirements. Single- and three-phase configurations, multiple supply voltages, and available staging options allow the heater to be specified for a wide range of VAV reheat and supplemental heating applications.
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
The radiant safety diffuser screen is designed for installations where the heater is positioned close to the VAV valve. Because the heater's Flip-Able design accommodates different airflow orientations, the diffuser screen can be mounted on either side of the heater depending on the inlet air position.
Yes. TUTCO's Flip-Able design allows one E-Series VAV heater to accommodate four different mounting positions. The symmetrical design eliminates the need to specify separate left- and right-hand heaters and allows the heater to be rotated to accommodate the layout of the HVAC system.
TUTCO E-Series VAV duct heaters are UL and ETL listed for multiple uses within 20 inches of the VAV valve. This allows the heater to be integrated closely with the VAV system while helping simplify installation where available duct space is limited.
A standard duct heater is installed within HVAC ductwork to heat moving air, while a VAV duct heater is specifically designed to work with a Variable Air Volume system. TUTCO E-Series VAV heaters can be used as stand-alone duct heaters or mounted directly to a single-duct VAV valve system, providing additional flexibility for commercial HVAC installations.
A VAV duct heater provides electric heat within a Variable Air Volume (VAV) HVAC system. It is commonly used to provide supplemental or reheat capacity as airflow to an individual zone changes based on heating and cooling demand.







