Radiator 22K 900 x 1800, output 4311W

Product detailed description

Steel radiator with side connection for central heating in family homes.

• Connections: 4 x 1/2“
• Test pressure: 1.3 MPa
• Operating pressure: 1.0 MPa
• Heating medium temperature: hot water up to 110 C
• Product: Stelrad Compact Softline
• Type: 11/20/21/22/33
• Height: 300 – 900 mm
• Length: 400 – 3000 mm
• Depth: 61/77/100/158 mm

The Compact Softline low-temperature radiator is made of fine cold-rolled sheet steel to EN442-1 quality, with side panels and a top grille, forming a compact unit with a vertical water channel spacing of 33.3 mm. The convector sheet is welded to the internal channels. Before painting, all radiators go through a multi-stage cleaning process, including iron phosphate phosphating and a demineralised rinse. A primer coat is then applied, followed by a powder coating in Stelrad white 9016. Each radiator is packed in cardboard with sturdy corner protectors and in protective film. All units have mounting brackets on the back. Quality is certified to EN ISO 9001. Thermal output is verified to EN 442. The design complies with BAGUV safety guidelines.

Frequently Asked Questions

• What output does this particular radiator have (900 x 1800 mm, type 22K)? This size and type version has a declared thermal output of 4311 W (according to EN 442, at the standard temperature drop) - when choosing the correct radiator size, base it on the calculated heat loss of the room in question.
• What does the type designation 22K mean? The number before "K" (e.g. 11, 20, 21, 22, 33) indicates the radiator's construction type - the number of radiator panels/plates and convector sheets in its makeup; a higher number means more layers and therefore higher output at the same external dimensions. A radiator without the letter "V" in the type has a side connection - the classic placement of connections on the sides of the radiator, suitable for standard side pipe routing.
• What is the maximum operating pressure and temperature? The radiator is designed for an operating pressure of up to 1.0 MPa and a heating water temperature of up to 110°C, with a test pressure of 1.3 MPa - typical domestic heating systems operate well below these values.
• What warranty does the radiator have? The manufacturer provides a 10-year warranty on tightness and thermal output from the date of manufacture, provided professional installation, correct maintenance and correct operation are observed - the warranty does not cover mechanical damage caused during transport, handling or improper installation.
• Must the installation be carried out by a professional? Yes, connecting the radiator to the heating system (single-pipe or two-pipe, with forced circulation) should be carried out by a heating engineer/installer, who will also ensure correct venting and balancing of the circuit.