Accuheat® Quartz In-Line Gas Heaters

Accuheat Quartz In-Line Gas Heaters


As sophistication and demand for process purity increases throughout industries, equipment manufacturers must pave new paths, to provide the tools needed to reach the next technology node. IMTEC understands and demonstrates this core value throughout its product lines. With growing demand for heated high purity gasses such as heating nitrogen gas.


Accuheat® Quartz In-Line Gas Heater Brochure
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With technology and know how gained from over two decades of manufacturing quartz inline fluid heaters. IMTEC has designed the Accuheat G-Series to be extremely robust, efficient, and pure. With quartz being the sole material to come in contact with gasses being heated you can be sure that there are no particle adders or contaminates.

Extremely reliable, heavy gauge heater elements are affixed to the outer diameter of each quartz tube along with over temperature sensors, creating a truly robust design. The Accuheat G-Series are available in many sizes (single or dual tube) and wattages, contact us for more details.

Accuheat Quartz In-Line Gas Heaters


Ultra high purity gas heating is a challenge. Metals can break down and/or shed particulate, while other materials are inefficient at heat transfer. Imtec has solved this challenge using a unique tube-in-tube design that provides for excellent heat transfer in a ultra-pure, non-metallic flow path. The tube-in-tube design creates a .060” wide flow path that creates intimate contact between the gasses and heated surfaces. This makes a dramatic improvement in efficiency when compared to other designs.

Accuheat Quartz In-Line Gas Heaters Double-Wall Tube

High Flow Rates

The G-series heaters are available in single or dual tube configurations allowing for a wide range of temperature/flow applications. A dual tube configuration allows for high flows, almost a doubling of a single tube configuration.

Flexible Control

Gas heating applications can vary dramatically making the control tricky. The Accuheat G-series offer the ability to monitor/control heater element temp, which can be useful for low flow, intermittent applications.

Key Product Features

  • All quartz gas flow path, metal free path
  • Double quartz tube construction for efficient heat transfer
  • FM-4910 Compliant PVDF Housing
  • Power modulator protects against no-flow conditions
  • RTD provided for monitoring internal gas temperature
  • Over-Temperature thermocouple attached to heater element provided for redundant protection
  • Over-Temperature snap switch trips if heater is out of control
  • Power modulator monitors element temp to reduce excess heat inside housing

Compatible Gases

Accuheat in-line gas heater are designed for heating a wide range of gases.

  • Ammonia (NH3)
  • Helium (He)
  • Argon (Ar)
  • Hydrogen (H2)
  • Arsine (AsH3)
  • Hydrogen Bromide (HBr)
  • Boron Trichloride (BCl3)
  • Hydrogen Chloride (HCl)
  • Carbon Dioxide (CO2)
  • Nitrogen Heater (N2)
  • Carbon Monoxide (CO)
  • Chlorine (Cl2)
  • Nitrous Oxide (N2O)
  • Oxygen (O2)
  • Disilane (Si2H6)
  • Sulfur Dioxide (SO2)
  • Methylsilane (SiH3CH3)
  • And more…


Accuheat Quartz In-line Gas Heater
G3500 & G7000
Single Tube - 3.0 KW @ 208V or 4.0 KW @ 240V
Dual Tube - 6.0 KW @ 208V or 8.0 KW @ 240V
*Wattage's dependent on voltages, 208 & 240 VAC available.
Max. Heater Element Operating Temp
Max. Gas Temp
Flow Dependent
Over-Temperature Sensors
(1) J-Type T/C, (1) Thermostatic Snap Switch
Heater Temperature Sensors
(2) J-Type Thermocouples
Connection Type
1/2-in Flared Stem with Carbon Filled Nut
Power Cord
10 Foot PFA Conduit
G3500 (31.0x6.5x5.0"H) G7000 (31.0x9.0x5.0"H)