Stainless Steel, Electric, and Flat Panel Radiators
Want to use steel, panel, and electric radiators to heat your apartment unit, residential space, and office but you are not sure of type, capacity, brand, price, and specifications that suit your purpose? Read on to find the answers to all your questions on price, technical specifications, and the best steel, panel, and electric radiators on the market.
Radiators have long been used for heating apartments, offices, stores, or schools, where heat is distributed via convection (read more on electric radiators in the following).
After heating, the air surrounding the radiator rises and is replaced by colder air. This continuous cycle gradually heats the whole environment.
The water in a radiator is heated in the central boiler room via a boiler and burner. The hot water is then pumped to different parts of the building and exchanges its heat with the environment via radiators.
Stainless Steel, Electric and Flat Panel Radiators are best to be placed in locations that do not require exact temperature and humidity adjustments, as they can only heat the environment and lack the power to adjust ambient temperature or humidity. Further, they reduce the relative humidity of the room (although note that nowadays a thermostatic valve on a radiator makes it possible to adjust ambient temperature).
Note: the accumulation of warm air under the ceiling means using radiators is only suitable if the floor-ceiling height does not exceed 3 meters. For higher ceilings, blowing heating devices (e.g. fan coils, splits, air washers, etc.) are recommended.
Steel radiators are manufactured as a seamless block, meaning no fins can be added or removed after manufacture. However, aluminum radiators mostly provide such an option.
The fin thickness in a steel radiator is 4.5 cm. Each square meter of the surface of a steel radiator produces about 440 kcal of heat per hour (under normal conditions and a temperature difference of 60℃ between the ambient air and hot radiator water).
To properly determine the number of fins required for your steel radiators at each part of the building, consult with the technicians of Damatajhiz Co. by providing the dimensions and location of the desired place.
For the climate of Tehran and given no excess penetration of cold air and only a single wall exposed to the exterior cold air, the middle levels of a building approximately require 85 kcal of heat per square meter. This value is 95 kcal for the floor above the parking lot and 120 kcal for the top floors. For each additional wall in contact with cold exterior air, 20% is added to the above values.
Based on the above measures, you can estimate the heating required for each part of your building by multiplying the used area of your place with the provided unit values.
After that, you can divide the obtained heating figure by the heat generated by each radiator fin in order to determine the required fin count (the heat generated by each fin is given in the table of technical specs for the corresponding radiator model).
Again, remember that using thermostatic valves for controlling the ambient temperature in winter saves up to 30% of energy.
The production process of steel radiators: The production process does not demand advanced technical knowledge and comprises conventional metalwork operations such as plate works (cutting, pressing, forming), welding (ERW or oxy-acetylene), coating, and quality control. A steel plate is the main material used in this process. The manufacturer or client determines whether to use the common gray coating or ivory color.
Types of Steel Radiators
- The panel steel radiators are made of two pressed iron sheets of 2.1 mm and warm water flows between the two sheets. Panel radiators are produced in two forms: single panel convector and double (double in width) panel convector radiators.
- The sectional steel radiators are made of iron sheets of 25.1 mm and in different sizes. Radiators of 200×600, 200×500, and 200×300 mm are normally of that type. The number 200 mm shows the width of the radiator fins and the numbers 600, 500, and 300 show the distance between the lower and upper axis in mm. the thermal surface of the 200×600 mm steel radiators equals 0.31 square meters and the thermal surface of 200×500 mm ones equals 0.26 square meters and the thermal surface of the 200×300 steel radiators equals 0.18 square meters. The radiator fins are usually connected by welds and/or by clockwise and counterclockwise gears (the thickness of each steel radiator fin is 4.5 cm).
- Sectional steel radiators can create a proper thermal surface in a relatively small space because they are produced in sectional form.
Advantages and disadvantages of panel radiator: Panel radiators are mostly made of steel and are nowadays commonly used in most European countries, such that using panel radiators, supplied in steel radiator group, is increasing due to their more elegance and attractiveness and more reasonable price compared to other steel radiators.
Some of the properties and advantages of panel radiators are listed in the following :
- Installable from any side
- Integrated installation and good sealing
- Elegance and harmony with most interior decoration designs
- More uniform heating of the environment compared to sectional radiators
- Uniform and extensive radiation level and naturally, more radiant heating compared to sectional radiators (the higher the ratio of the radiant heating to the convection heat, the more desirable it will be for the human body physiologically).
The panel radiators also include disadvantages and weaknesses as follows
- Due to the steel used in these radiators, they might oxidize or have leaks compared to the aluminum radiators, especially in long term periods of time
- In case the panel radiators are damaged or have leaks, they cannot be fixed economically (and the whole panel needs to be replaced).
- The thermal capacity of the radiator cannot be increased or decreased in the panel (in such cases, the thermal capacity can be increased by adding piping to the inlet and outlet pipes and using extra radiator panels).
Selecting Panel and Steel Radiators
With regard to the dimensions of the installation place and the calculation of the thermal dissipation of the desired space, you can select the number of radiator fins you need according to the shape, dimensions, and heating rate of each radiator model and, in the case of panel radiators, according to the required heat, the type and length of the respective radiator panel are selected using the technical specifications table for that model.
Points on Selecting Panel and Steel Radiators
- As usual, the emphasis is on calculating the exact thermal load of the building by software and also verifying the calculation results by a facility engineer. By doing this, your total cost will be reduced overall.
- It is necessary to place the radiators on the cold borders of the building (under windows and near the external walls of the building).
- Today, due to heavy fuel costs on one hand, as well as the phenomenon of global warming, on the other hand, the use of radiator thermostatic valves instead of ordinary valves for radiators is a compulsion or a completely clever and economical choice, and greatly reduces the cost of gas bills and also increases the overall lifetime of boiler rooms and home packages.
- The use of automatic bleed valves for radiators makes it easy to bleed the radiator, in addition, reduces the risk of water leakages from the radiator to furniture.
- Constant and timely bleeding is one of the most important principles of maintaining heating equipment. Note the proper bleeding of the heating system should be done carefully every year in the first half of the cold season when the water circulation pump has been switched off.
Selecting the Stainless Steel, Electric, and Flat Panel Radiators Installation Place
- In winter, the room is constantly heated by the radiator, but the room temperature does not go up and stays the same. The reason is that a greater proportion of the generated heat is being lost.
- Heat loss occurs in two ways. Heat loss due to the room walls, such as ceilings, floors, surrounding walls, and windows, etc. Heat loss due to cold air influx from the window seams.
- In other words, heat loss occurs, whether we want it or not. Of course, heat loss can be reduced by using double-glazed UPVC windows and thermostatic radiator valves, but it cannot be completely eliminated.
- The height of steel radiator sections after installation on the corresponding base is 6 cm more than the height of each fin, so when estimating the height required for the installation of steel and panel radiators, in order to avoid windows, this should be carefully considered.
- The use of electric radiators for desired heat supply because of their very high reliability and low sound has made them one of the most popular consumer choices for supplemental heating systems of buildings.
- An electric radiator, known as an oil radiator, has the general shape of the radiator piping and is filled with oil instead of water. Heating elements are placed in the radiator to warm the oil and move it in the radiator fins, and the heating of the radiator fins warms the environment. The oil in this device is a heat carrier and permanent and it never needs to be replaced.
- The oil heating elements are placed inside the electric radiator, and the oil is warmed up by the convection system, the hot oil goes to the top and the cold oil is transferred to the bottom of the radiator, and this cycle continues continuously. The heat capacity of the oil causes more energy to be absorbed in a smaller volume (relative to water). Certainly, electric radiators compared to gas heaters have more safety and, of course, higher electricity costs, and it is therefore recommended to be widely used in small to medium-sized bedrooms, because usually gas heaters, and in particular those without chimneys should not be used in bedrooms for safety reasons.
- Electric radiators mainly have 5 to 15 fins and power consumption of 900 to 2000 watts. Also, electric radiators usually have automatic thermostats and two thermal modes (low and high), and some models have a fan to accelerate the distribution of hot air.
- Electric radiators are suitable for optimal and continuous heating in small to medium-sized environments and are safer due to the lack of direct contact with the element or exothermic agents (in addition, some electric radiators have towel dryers)
- Another advantage of all-electric radiators is the wheels that are mounted on them for easy movement.
Method of Selecting Electric Radiators
- An electric radiator of 5 to 7 fins is suitable for a room of 6 to 8 square meters with a ceiling height of about 2.8 meters.
- An electric radiator of 7 to 9 fins is suitable for 8 to 10 square meters with a ceiling height of about 2.8 meters.
- An electric radiator of 9 to 11 fins is suitable for 10 to 12 square meters with a ceiling height of about 2.8 meters.
- An electric radiator of 11 to 13 fins is suitable for a room of 12 to 15 square meters with a ceiling height of about 2.8 meters.
After all, if you had more questions to decide for buying different types of Steel radiators, panel radiators and electric radiators, you can contact to DamaTajhiz company and ask your questions from sales consultant of heating equipment department through this internal numbers: 107 - 108 - 121 – 122
Placing an Order and Warranties for Stainless Steel, Electric, and Flat Panel Radiators
- Offering the best price guarantee for all products, the prices for Stainless Steel, Electric and Flat Panel Radiators presented by DamaTajhiz are up-to-date and discount-included (see Best Price Guarantee at DamaTajhiz.com).
- At DamaTajhiz.com, we provide all the information you need, as well as guaranteed unbeatable prices, for several models of Stainless Steel, Electric, and Flat Panel Radiators from reliable manufacturers, with original warranties, to bring you the thrill of an ideal, intelligent purchase.
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