Examples of thermal characteristics of selected radiators.

The table shows these types of characteristics for Rettig-Ratec and Purmo radiators. Choosing radiators, outside the pre-determined heat demand, other requirements should also be taken into account, and especially … read on

Correction factors for the selection of Purmo heaters with other than nominal operating parameters of the central heating system.

An example is the data from the table for Purmo radiators. It follows from them, that heater … read on

Selection of heaters

The basis for selecting the surface of radiators for a heated room is the knowledge of the heat demand. When calculating thermal needs, attention should be paid to the method of laying heating risers in rooms. If these risers … read on

Other radiator designs.

Of the large number of different radiators, only slatted radiators will be presented. Slatted radiators (also called heating strips or radiators and plinths) they have the form of a skirting board placed against the walls … read on

Each floor heating system must be subject to technical and thermal tests. Their purpose is to establish the relationship between the heating capacity and the maximum temperature of the floor surface (ℑpmax) and the difference between the average temperature of the heating medium … read on

Heat transferred from a heating wall with a heat transfer coefficient of approximately 0,45 W/m2K for a room with a temperature of +20°C (at outdoor temperature te = -15°C), Marks: L – heating pipe spacing o … read on

Radiant heaters

This name can be used to describe heating elements that give off heat with a clear advantage of radiation over convection.. These are heating pipes placed near one of the partitions of heated rooms (most often theirs … read on

In addition to the presented simple solutions of convectors, so-called. fan climate coils (also called valves). They have a built-in fan that draws air from the outside or from the room, depending on the position of the damper … read on

There are a significant number of convector heaters. These also include Purmo type radiators, manufactured from steel sheet with a thickness of 1,25 mm and convection elements with a thickness 0,5 Mm. There are three types … read on

Convector heaters

A convector is called a housingd heat exchanger that gives off the majority of heat by convection. This exchanger is most often copper tubes, on which the so-called. Slats, i.e. properly shaped ribs, … read on