The HT068 is a two-door reach-in chamber model and a part of our HT line of heated incubator/oven chambers.


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The HT068 is a two-door heated oven/incubator chamber model from Darwin Chambers.

The HT series was introduced in 2003 as the first commercially manufactured large capacity heated incubator. The HT series incubators are presently in use by research companies around the world. The advantages of these incubators are listed below.

Why Choose the HT Series Incubator/Oven

This superior heated incubator/oven does not employ cooling to maintain temperature. Without cooling components, the HT series is the most efficient and reliable series we sell.

Superior Efficiency

The unit uses roughly 1/4 the electricity of our compressor driven models and roughly 1/8 the electricity of some of our competitor's models.

Options Available

  • Chart Recorders
  • Data Loggers

Widely Proven, Non-Proprietary Controllers

Standard controllers for the HT series are manufactured by Fuji Electric and are ideal for heated incubators. Unlike many proprietary controllers, this controller is commercially available and proven in tens of thousands of installations. Standard functions include: autotuning, fuzzy logic, PID control, programmable alarms, calibration capability, ramp/soak, offset capability, etc. A
touchscreen control interface is optional. Other controller manufacturers are also supported (Watlow, Allen Bradley etc.)

Services and Warranties

We offer 24 hour technical support throughout the lifetime of your chamber. In addition to our standard warranties, we also offer extended warranties for cooling components, parts and labor. We also provide qualifications, validations and preventive maintenance services at an additional cost. Please ask for a quote.

Additional information

Cabinet Construction

Standard model features powder-coated door, front, and sides. Interior has 304 stainless steel on door liner, top, bottom, back and sides. 2" O.D access port with access port cover and insulation plug located on side wall of the chamber.


Positive magnetic seal, reversible.


Entire cabinet structure and doors insulated using 2″ polyurethane foam.


Wire shelves (3 per door) stainless steel shelves included. Shelves capable of supporting up to 150 lbs of evenly distributed weight. Full height shelf support pilasters, with double oblong holes on 1/2" centers. Pilasters made of the same material as cabinet interior. Stainless steel shelf clips to be included for each shelf.

Cooling System

Top mounted, thermoelectric cooling system. Peltier based technology is solid state, highly efficient, reliable, and provides minimal vibration. Semi-Redundant cooling capability. Cooling surfaces act as dehumidifying modules at 25°C/60%RH and 30°C/65%RH

Humidity Control

NIST traceable 0.8% Rotronic humidity sensor w/cert. Solid state controlled, ultrasonic humidifier with ceramic/titanium disk for long life.

Electrical Characteristics

Unit completely pre-wired at factory, and ready for final connection to a 120V/60Hz/1/15a phase – 15 amp dedicated circuit.