winter season in our country is unpredictable.The temperature is kept near zero, then lowered to 30-40 ° below zero.Naturally, every resident faces the challenge of heating their homes.And if not very low temperatures comfortable environment still manages to maintain with the help of insulated windows and walls, when severe frosts little old radiators are no longer able to cope with heating.Of course, there is the option of an oil cooler, but why pay extra money for electricity if it is possible to establish new, more powerful battery.
- main types of radiators
- Bimetallic radiators Aluminium radiators
- Cast iron radiators Steel radiators
- How to calculate the number of radiators
- When buying every detail
- Tips for the transition from oneradiators on other
- How to replace radiators
main types of radiators
In today's market there are four kinds of radiators for central heating:
Let's start from the beginning.
Bimetallic radiators Bimetallic radiators
are more complex design.They immediately joined the two metals, hence the prefix "bi".Bimetallic battery is a steel body, which circulates coolant.It is covered with an external aluminum layer having a ribbed surface.With this in one device managed to combine a very high heat, which have aluminum radiators, and the strength of steel devices.In addition, these batteries have a long life, as the steel in contact with the coolant, has a very high resistance to corrosion.
Another undoubted advantage of bimetallic radiators is considered an opportunity to increase capacity by adding additional sections, which saves on the battery in the rooms small size, setting 3-4 section.
Aluminium radiators Aluminium radiators
immediately after his appearance began to enjoy wide popularity, hitting the consumer by its compactness and functionality compared to the massive cast-iron batteries.But then all switched to their use across some shortcomings, which we describe below.
Radiators of aluminum collected from several heating elements connected to each other nipples and section equipped with rubber seals designed to prevent leakage.This actually works, but only as long as the system is used as the coolant water.If the tube is filled with antifreeze, it quickly brings pads into disrepair, especially if they are rubber.The quality of the water, too, should be carefully monitored.Its pH-level should not exceed 7-8.Unfortunately, in our systems to exercise such control is virtually impossible.
Installation of aluminum radiators is required to take care of the air duct, otherwise they would very quickly cease to function.Do not tolerate such batteries and neighborhood with pipes made of any other metal, their interaction leads to corrosion and destruction of the structural elements.In addition, aluminum radiators should be installed only by professionals, because the slightest non-compliance can result in technology costly rework.
But of course there are the battery of aluminum and undeniable merits.Few radiators can compete with them in the level of heat loss, none of them was heated at the same space velocity.In addition, the compactness and light weight make it possible to transport them to any distance without any problems.
Cast iron radiators
I would like to call the cast iron radiators are already past the home heating, but this is impossible to do, and probably in the future from them more soon abandoned.The durability of these devices proved time and at the state of our heating systems and as a coolant their resistance to corrosion and destruction overshadows all the flaws, bringing iron battery in the first place.In addition, they do not require any special care.Putting these radiators, a person can forget about problems with heating for many years.That is why the iron sections still are not only used in older homes, but also installed in modern buildings.
Of course, the disadvantages are quite significant.This limited design options (though recently there have been foreign artistic models to perfectly fit them into the interior, but the price they respectively) and high inertia, so you can not quickly get a comfortable temperature.Although sometimes the last factor serves more pluses than minuses.By the way, unsightly iron battery can be hidden behind the beautiful grille.In today's market there are a lot of variety of lattices that are suitable for any style of interior.
Steel radiators Steel radiators
divided into panels and breakout.Consisting of several fragments (sectional) a bit like iron, but have higher operating resource and increased resistance to pressure surges network as separate sections interconnected by spot welding, is durable.Steel batteries are able to withstand up to 16 bar, but since they are made of thin metal (wall thickness less than 1.5 mm), these radiators can be easily damaged when pressure surges or any external influences.
Panel steel resistant to damage the battery, durable, well give off heat, but do not build up.Therefore, when changing the climate in the room will not be able to increase the heating power, except replacing radiators.
How to calculate the number of radiators
Before proceeding to purchase the necessary equipment to replace the radiator, you need to calculate the required amount to maintain a comfortable room temperature.To achieve the best performance battery installed under each window so that they simultaneously played the role of a kind of "air curtain" air heating, cooling from the glass, warm stream rising from the radiator to the ceiling.In addition, it will prevent condensation on the windows.
calculation is based on the size of the heated space.To begin with is the total area of the room, then the total amount needed for the heating of homes sections is calculated by the following formula:
S_komnaty * 100W / ΔT;
where S_komnaty - room area,
ΔT - heat one section.This information can be obtained from the specifications indicated on the packaging equipment.
According to this formula is the number of radiators for rooms with a ceiling height of less than 3 m. If the height exceeds this value, instead of 100 W to insert a value of 40 * h, where h - height ceilings.
When calculating the need to take into account the layout of the room.If it is a corner, you need to add a few extra sections.For very harsh winters better to increase the calculated value by 20-30%.If the batteries are closely located in a niche under the window and have little or no space for air circulation, that number should be increased by 10-15%.
When buying every detail
Before buying verify the pressure in the heating system and possibly the composition of the coolant.Residents of private homes it will not be difficult, but the happy owners of apartments will have to contact the housing office or RG.
The store not be shy to ask questions, because for the proper functioning of the heating system, every detail is important.Any consultant of the department will be able to give you the necessary information about the features of the installation or the possibility of adjusting the heat, not to mention the technical characteristics such as strength, the minimum period of operation, the pressure, as well as the warranty provided.
Tips for the transition from one to the other radiators
There are times when the choice is limited to the technical properties of a functioning heating system.If you have already installed cast-iron radiators, the likely quality of the coolant does not differ perfection.In this case you should forget the whimsical steel and aluminum radiators, cast iron or bimetallic only model.Although if the replacement is done around the house with the consent of all the tenants, then why not.
If the temperature of the coolant throughout the season is poor, it is necessary to put a cast-iron batteries, which due to its high inertia and high mass transfer heat well.In the reverse situation, when the whole winter to touch the radiator is not possible, use a bimetal section, they are not as superheated air as iron.
How to replace radiators
first replacement radiators must be agreed with the relevant authorities.Here you can order a payment or check your power.By the way, the calculation of the required number of radiators and their power is better to entrust the professionals, because as soon as they are able to take into account all the nuances of your room and make educated plan.This will avoid a lot of problems in the coordination of the project.
Then you need to prepare everything you need to install radiators:
- brackets for attaching them;
- cranes Majewski;
- ball valves;
- flax fiber;
- spanners and wrenches;
- sealant Silicone better.
Install radiator is not very complicated.You must first prepare the new batteries.Set them plug-plug, cranes Majewski and all the necessary fittings.To prevent leakage before connecting joints need to wrap the linen fiber (hemp) and cover with silicone sealant.
Now you can drain the coolant from the heating system, of course, after turning off the radiators of the total riser.Even after it is fused, in old batteries remains some amount.Therefore, caution should be disconnected and better prepare immediately rags for wiping the water off the floor.Next, set the new radiators in the predetermined brackets and connect them with pipes through ball valves.
At this stage, you need to follow a few rules:
- radiators are installed horizontally and vertically, while the air is collected in the wrong places.
- Minimum distance from the battery to the floor and to the wall surface - 50 mm.
- The same distance should be up to the sill to provide free air circulation.
- If you plan to install reflective insulation behind the radiator, you need to acquire arms for fixing the greater length.
But the work is not yet finished.It is possible that with the beginning of the heating season will show up small leaks that can easily be eliminated by tightening the connections.Another problem that will have to face - the presence of air in the new radiator.Here and come to the aid of cranes Majewski, so neglect their installation is not necessary in any case.With them, you can quickly bleed all the air pockets in the sections.
importantly, remember that the correct installation of the radiator ensures the quality of your space heating in the winter, so if you are in doubt about their abilities, it is better to consult a specialized firm.