Horizontal decorative radiator with a timeless design

The age of radiators being hidden came to a definite end with the arrival of the Planar Slim ECO. You’ll actually want to highlight this radiator. The bi-colour design with a completely smooth front and flush black upper grille and side panels gives the radiator an unrivalled look. Its high-quality finish offers you an attractive and warm radiator for years on end. Use it in combination with the Vertex Slim to create a light and spacious feel throughout your home.

Why opt for a Stelrad Planar Slim ECO radiator?

• Horizontal radiator
• Decorative, unique design
• Thin, smooth front with recessed panels
• Available in colour

Discover the Stelrad Planar Slim ECO here in 3D

››› Planar Slim ECO

Click and hold the left mouse button, then drag to rotate the radiator. Scroll to zoom in or out.

How does the ECO technology work?

• Why opt for the ECO radiator?

• The benefit of radiant heat

• ECO radiator: serial flow

Download high resolution images (zip-format)

Image gallery

Click here to view the images of the Stelrad Planar Slim ECO

Choose your colour

Warmth is essential for creating a cosy home. As is an interior that you feel good in. With Stelrad you can now opt for colourful warmth.

NT110 Papyrus white	NT120 Pearl white	NT130 Champagne	NT140 Beige	NT160 Pebble grey	NT170 Quartz grey	NT180 Soft black
ML110 Dove grey	ML120 Titanium grey	ML134 Blue grey	ML140 Granite	ML150 Cappuccino	ML160 Terra brown	ML170 Graphite black
SN110 Cream white	SN120 Cream	SN130 Mocca	SN140 Bordeaux	SN150 Sepia	SN160 Pale blue	SN170 Black
A1004 Golden yellow	A2003 Pastel orange	A3002 Carmine red	A5002 Ultramarine blue	A6018 Yellow green	A7001 Silver grey	A7011 Iron grey
A7016 Antracite grey	A7030 Stone grey	A7035 Light grey	A8017 Chocolate brown	A9003 Signal white	A9005 Jet black	A9010 Pure white

The above colour palette can be further expanded with a multitude of RAL colours. The colours depicted are indicative only.

Accessories

Stelrad Eclipse thermostatic insert

Permanent air vent ECO – S-Vent DUO™

Mounting key for permanent air vent

Valve opener with venting hose for T2150

Towel bar – Slim ECO

Towel bar – Chrome (also order T1165)

Chrome magnetic towel rail

Renovation kit ECO

Stelrad thermostatic head

Double connection fitting – Straight, without drain-off facility

Double connection fitting – Straight, with drain-off facility

Double connection fitting – Angled, without drain-off facility

Double connection fitting – Angled, with drain-off facility

Drain nipple

Technical details

The age of radiators being hidden came to a definite end with the arrival of the Planar Slim ECO.

You’ll actually want to highlight this radiator. The bi-colour design with a completely smooth front and recessed black upper grille and side panels gives the radiator an unrivalled look.

Its high-quality finish offers you an attractive and warm radiator for years on end. Use it in combination with the Vertex Slim to create a light and spacious feel throughout your home.

• Specification text
• Type overview
• Heat Output & Dimensions
• Connection possibilities
• Lugs
• Installation

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• Product:	decorative horizontal low-temperature valve radiator with serial flow technology, both a centre and lateral bottom connection and a preset valve insert, which can be fitted on the left or right side of the radiator
• Finishing:	completely smooth design with a jointless front and recessed black upper grille and side panels
• Pre-installed:	preset Heimeier 4368 valve insert, ECO air vent and blind plugs
• Valve insert:	The integrated adjustable valve insert is factory-fit on the right side of the radiator, CEN certified, tested in accordance with EN215 and compatible with thermostatic heads M30 x 1,5 mm. The valve insert can also be fitted on the left of the ECO radiator. The thermostatic valve insert is factory-set in relation to the size of the radiator. This presetting ensures optimum throughput in the radiator. Factory setting for two-pipe systems, also suitable for one-pipe systems (as long as the valve insert is adjusted to position 8).
• Also supplied:	design thermostatic head, valve insert spindle extension, wall brackets, saddle clips, screws, plugs and installation instructions
• Connections:	2 x ¾” male Eurocone centre connection and 2 x ½” female lateral bottom connection
• Lugs:	2 pairs of mounting lugs up to 1.600 mm and 3 pairs from 1.800 mm
• Packaging:	Every radiator is sturdily packaged with protective foam-filled bags, in high-quality cardboard and wrapped in plastic. The radiator’s characteristics are shown on the label: type – height – length.
• Warranty:	10 years, as long as the installation instructions have been followed and Stelrad’s warranty conditions have been met.
• Paint process:	All radiators are degreased, phosphated, cataphoretically primed and powder-coated in Stelrad SN170 black as standard.
• Colours front panel:	Stelrad white 9016 + 35 different Stelrad colours and about 200 RAL-colours are possible
• Colour side panels and upper grille:	SN170 black
• Max. operating pressure:	10 bar (tested to 13 bar)
• Max. operating temperature:	110 °C
• Conformity:	in accordance with EN442
• Types:	21 | 22
• Heights:	545 | 645 mm
• Lengths:	670 | 870 | 1.070 | 1.270 | 1.470 | 1.670 | 1.870 | 2.070 mm
• Depths:	96 | 119 mm
• Download:

Height		Type 21	Type 22
(mm)
545	W	1.024	1.304
	kg	29,31	32,73
	l	5,8	5,83
	m²	4,31	6,33
	n	1,2966	1,2908
645	W	1.184	1.498
	kg	34,8	38,8
	l	6,80	6,90
	m²	5,24	7,74
	n	1,3069	1,2999

Calculation Factor per meter length radiator at 75/65/20 °C in accordance with EN442
Characteristic equation: ф = K_M x ΔTⁿ

Height (mm)	545			645
Type	21	22		21	22
670	614	782		710	899
870	819	1.043		947	1.198
1.070	1.024	1.304		1.184	1.498
1.270	1.229	1.565		1.421	1.798
1.470	1.434	1.826		1.658	2.097
1.670	1.638	2.086		1.894	2.397
1.870	1.843	2.347		2.131	2.696
2.070	2.048	2.608		2.368	2.996

Download the Heat calculator
Download the Correction Factors

Connection possibilities

TYPE 21-22

Important notice: The green ECO air vent is essential for the proper working of the radiator and cannot be replaced by a traditional air vent as the radiator will keep on heating.

Length 1070-1670	Length 1870-2070
TYPE 21-22

Installation

TYPE 21 (SHORT)	TYPE 21 (LONG)	TYPE 22 (SHORT)	TYPE 22 (LONG)

Connection dimensions

TYPE 21-22
L = Length of the radiator

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