Termini™ 1000 120V

Interior heater

Termini™ 1000 is a compact interior heater that gives you increased comfort and less ice and fog on the windows.

Item no: 433101



  • Increased comfort – start your day in a warmer vehicle, with less ice and fog on the windows.
  • Improved safety – clear windows make you a better and safer driver. The police will take action against drivers whose vision is impaired by ice.
  • Smart heating – PTC technology effectively regulates the interior temperature, lowering energy consumption as the air inside the vehicle heats up.
  • Quality and design – sleek Nordic design combined with trademarked connectors and armored cables provide durability and style.

DEFA interior heater uses a PTC (PTC = Positive Temperature Coefficient) heating element which self adjusts the output power according to the inside temperature of the car.

A 20°C/68°F temperature increase will result in a 10% power reduction. As the interior temperature increases the power will gradually be reduced accordingly. The heater has automatic over-temperature protection. If the system stops, unplug the power for 20 minutes to allow the system to reset.

As a part of a WarmUp system, you can control the Termini 1000 interior heater via the DEFA app or the Futura control module. When not part of a WarmUp system, you can use the On/Off switch on the unit. The unit has one output setting: 1000W at -25°C. A PTC heating element reduces power output and consumption when the temperature reaches target levels.

Technical description

DEFA AS conforms to the requirements of both ISO 9001- 2008, ISO 14001:2004 and OHSAS 18001:2007. In addition, our engine heaters and cables conform to the requirements of ISO/TS 16949:2002.

The interior heater is approved by: UL std. No. 2021 CSA std. C22.2 No. 46.

Rated output/power
Temperature range of use
IP rating
Output at minus 25°C
Output at plus 25°C
Take-off power, max
-40°C / +50°C
EN60335-1, EN50408, EN55014-1 / 2, EN61000-3-2 / 3-3
0/1000 W
H/W/D: 182/138/36mm - 7.2/5.4/1.4in