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 Skirting heaters MEU/S
 Basic heaters PEU/S
 Universal heaters GU / GL
 Low temp. heater TRLU
 Skirting heaters GIU/S
 Interior heaters TIU/S /TU
 Nursery heaters TIL / TL
 Bench heater TLK
 Trench heater TRL
 Marine heaters  T2RIB/FIB


Trench heater - TRL




Telco's trench heater type TRL is a practical alternative to underfloor heating, requiring no wall space and giving excellent heat output. The Trench is built into the floor and covered by a stylish grille. Trench units are ideally positioned in front of an expanse of glass such as conservatories, patio windows or public areas. the grilles are designed to be walked on and are the only part of the heating unit visible at floor level.

The heaters are made from aluminum and designed for external controls.  Two installation nipples permit further connection.


EL number






TRL 03

54 493 90

300 W

95 mm

550 mm

93 mm

Low-temperature trench heater

TRL 04

54 493 91

400 W

95 mm

800 mm

93 mm

with thermal cut-out.

TRL 05

54 493 92

500 W

95 mm

1000 mm

93 mm

For permanent installation , og external

TRL 06

54 493 93

600 W

95 mm

1200 mm

93 mm

adjustment      1/4    -    1/2      -    1/1

Floor brackets

54 492 44







Open or download technical document: TRL english.pdf

The heaters are manufactured from extruded aluminium sections. The complete heating element is also made from aluminium and incorporates a heating coil, insulation, cooling fins and connection lead in one unit. This is a tried and tested design that provides excellent heat distribution and a long lifetime.



Flow-through heater for permanent installation and external adjustment, with thermal cut-out.

230 V

Colour: natural aluminum

Splashproof and rustproof; can be used in wet rooms.

Connection: Right-hand side

Fitting to walls: Heaters must be fitted horizontally and are delivered with solid wall brackets.
Floor installation: Heaters can be fitted to the floor using floor brackets that need to be ordered separately

Max. surface temperature: 60°C


Installation distance requirements


Minimum distance to side wall:

2 cm

Minimum distance to floor:

5 cm

Minimum distance to grille above the heater:

15 cm


Telco Fabrikker AS  -  phone: (+47) 73 81 20 90  -  fax: (+47) 73 81 74 95  -  e-mail:  -  N-7580 Selbu - Norway