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For customers

Are you planning to buy and install a convector yourself?

See some tips and advice to get started

The design of the convectors always respects the furnishings and appearance of the interior. You can choose from trench convectors (hidden in the floor, only the grille is visible), free-standing or wall-mounted. Convectors therefore do not burden the interior with their presence at all, on the contrary, they complement it appropriately - in the form of benches, you get extra seating or practical storage areas.

Trench convector – InFloor

BOKI trench convectors are the perfect solution for any building where both aesthetics and functionality are needed. Due to the installation in the floor, this type of convectors is most often used in combination with french windows or large glazed surfaces. An immense advantage of these convectors is the small amount of water in the heat exchanger (compared to conventional radiators), which ensures fast heating of the room. Their installation in the floor makes them an optimal source of heat circulation in the room.
See InFloor convectors

Free-standing convectors

BOKI free-standing convectors are the perfect solution for those who need to achieve high output. Thanks to their construction, the convectors are installed 10 cm above the floor, which ensures even greater air circulation and thus greater convectors output. Thanks to the low height, the convectors can be used in rooms with large glass surfaces as well as in rooms with protruding windows. Thanks to the unlimited colour options, they can fit perfectly into any interior.
See free-standing convectors

Basic parameters of convectors

Trench convectors are divided into two basic groups: without fans (natural convection) and with fans (forced convection). Fanless convectors operate on the principle of natural convection. In this case, the convector is heated by the flowing water, releasing heat which has the natural function of rising upwards. Convectors with fans work with forced convection. In this case, the air heated by the heat exchanger is blown into the room by the fan. Convectors can come in different dimensions, outputs or types of ducts. They are supplied together with a grille. This can be stainless steel, aluminium in different colours or wooden (beech, oak).

Dimensions of convector

Each convector is dimensionally defined by its width, length and height. The dimensions of each convector can be found in the "Dimensions and connections" section.

Dimensions of the body

Depending on the dimensions, the convector is equipped with a certain type of heat exchanger and fan. Hence its heat output, given in Watts. The heat output varies depending on the temperature gradient. This indicates the inlet water temperature / outlet water temperature / desired room temperature. The most commonly used temperature gradient is 75/65/20 °C.

Temperature gradient

The temperature gradient, expressed in degrees Celsius, consists of three parameters: inlet water temperature / outlet water temperature / desired room temperature. Depending on this temperature gradient, the performance of the convector is determined. The most commonly used temperature gradient is 75/65/20 °C. Is the temperature gradient not suitable for you? Use the conversion calculator on our website.

Type of duct

The ducts of the convectors can be made of different materials. The most common is double-sided galvanized sheet painted in RAL 9005 black. There is also brushed stainless steel sheet according to DIN 1.4301. For pool environments, stainless steel sheet according to DIN 1.4404 is used. The duct can also be supplied with a set for height adjustment of the convector. Another option is the installation of flanges for external air supply.

Type of grille

In terms of type, the grille can be

1. Roll-up (transverse)

the slats together with the spacer rings are strung on a spring

suitable for all slat materials and all types and sizes of convectors

2. Rigid (linear, longitudinal)

made of duralumin or stainless steel slats only

supplied together with the grid support

cannot be used for convectors with fans (F1S, F2C, F2V, F4C, F4V)

Questions and answers about choosing a convector

You may find the answers here

The BOKI convectors are ideal for installation under larger glazed window areas, under patio doors, or in conservatories and pool areas. The heaters are manufactured in a variety of standard lengths, but there is no problem to produce any length to suit the customer's requirements. The BOKI convectors are suitable for all types of interiors and can serve as a single or supplementary heat source. In addition, they are also a modern and reliable solution for heating the office spaces.

Convectors are primarily used for heating but they can also be used for cooling the rooms. However, these are only certain types of convectors - for additional cooling, you need a source of cooling water, which is possible, for example, with heat pumps.

A convector is optimally used at a medium water temperature of 70 °C (temperature gradient 75/65 °C) and above. At a lower temperature gradient, you must take into account a lower power output and use an adequately longer convector, especially a convector with a fan!

Yes, simply remove the walking grid (grille) from the convector and vacuum the heat exchanger with a brush attachment.