Prefect Atlantic EnergyLock fluid-filled radiators

750 – 2000 Watt ‘EnergyLock’ fluid-filled radiators

Key features

  • Thermofluid technology providing long-lasting and soft heat
  • IP24 Rated
  • No controls, ideal for use with Prefect Irus and the ecostat2 range of products
  • Slim design
  • Easy installation
  • Silent operation
  • 5-year warranty

The Prefect range of fluid-filled radiators has been designed to work alongside Prefect control equipment.

Elegant design, robust manufacturing and outstanding performance makes it an ideal choice for luxury student accommodation.

Accessio radiators incorporate Prefects patented EnergyLock - giving Energy Managers access to the unique control features of the Irus central control and Ecostat2 local control systems. Savings of up to 25% have been attained compared with mechanical convectors. Providers of student accommodation now have the choice of an alternative heater style and performance profile.

This modern, silent radiator includes innovative thermofluid technology that gives a quick but gentle warmth and a healthy heat diffusion that doesn’t dry the air. Accessio has been compared with the comfort of a central heating system, maintaining longer-lasting heat even after power to the radiator has been turned off.

EnergyLock-Accessio is available in 750W, 1000W, 1250W, 1500W and 2000W outputs, but measurements, due to the compact design, are only 575mm tall and 128mm deep with varying widths of 490mm (750W) to 973mm (2000W). The range has an appropriate heater for any application.

Installation is as easy as securing the simple ‘H’ design mounting bracket to the wall with four screws, lifting the unit onto the supports and locking it securely in place. For future redecoration the unit is simply unlocked and tilted forward to gain access to the wall behind.

EnergyLock-Accessio is fully compliant with Lot20 and is ErP regulation ready. The ErP  (Energy-related Products) directive encourages manufacturers, and/or importers, to offer products designed to reduce their overall impact on the environment, including the resources consumed during manufacture and disposal.

Find out more about Accessio radiators.


Model Wattage Height (mm) Width (mm)  Depth (mm)
Awaiting code 300 575 410 127
Awaiting code 500 575 410 127
PRE-AH573213 750 575 490 127
PRE-AH573214 1000 575 490 127
PRE-AH573215 1250 575 651 127
PRE-AH573216 1500 575 732 127
PRE-AH573217 2000 575 973 127


Compliance with LOT20

Lot 20 is EU Ecodesign legislation for electric heating.  Effective from January 2018, all installations must comply with this minimum efficiency standard. The focus is on removing poorly controlled heaters from the market and replacing them with controls for temperature, timer, presence and open window detection amongst others.

The important part to understand of this legislation, is that heaters fitted with basic controls will no longer be permissible, but that doesn’t mean the control unit has to be integrated.

The Prefect Irus central control system and ecostat 2 range of controls are supplied with a bespoke slave heater. This option provides control through an impressive range of features. The specifications required under EU law are far exceeded and these master controls, fitted separately from the panel.

Our unique, patented, Energy Lock is supplied with the controller and simply slips into a slot on the heater making it operable.

Find out more about LOT20.


Product Information