GAS /
CTW
Indirect Gas-Fired Heating / Duct Heater

The CTW Unit: A Compact, High-Performance Duct Heater Solution

A compact heating solution for lower-capacity ventilation systems, delivering reliable performance and easy integration into space-constrained environments.

Features

Compact Performance, Maximum Flexibility

Airflow

440 to 9,876 CFM

Net capacity

48 to 320 MBH

Temperature Rise

30 to 100°F

Maximum Supply Air Temperature

Max. 120°F

Installation manual

Performance Designed for Smaller-Capacity Installations

Provides stable and efficient heating for applications requiring lower output. Helps maintain precise temperature control in compact systems.

Modular and Responsive Design

A multi-tube heat exchanger with individual burners ensures rapid temperature rise. Enables efficient modulation and precise adjustment based on demand.

Simple and Versatile Integration

Its compact format makes installation easier in space-constrained environments. Compatible with a variety of ventilation system configurations.
Additional Information
  • Indirect gas-fired duct heater
  • Heating capacity from 48 to 320 MBH
  • Airflow from 440 to 9,876 CFM
  • Temperature rise from 30°F to 100°F
  • Maximum supply air temperature of 120°F
  • Multi-tube heat exchanger with individual burners
  • 2-pass (CTU) or 4-pass (CTW) heat exchanger configuration
  • 304L stainless steel heat exchanger
  • Modulating system up to 32.5:1
  • 0–10 V modulation for precise control
  • Operates on natural gas or propane
  • Indoor or outdoor installation
  • Integration into air handling units and ventilation systems
  • Compact design for space-constrained installations
  • Fast and responsive performance thanks to multiple burners
  • Certified to North American standards (UL)

An Efficient Solution for Targeted Applications

The CTW Unit offers an optimal balance of compactness, performance, and flexibility. It is ideally suited to the specific needs of ventilation systems that require a reliable, efficient, and easy-to-integrate heating solution.

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