Advantages and Disadvantages: Which heating batteries are better to choose for a private house?
Not only the selection of the heating boiler affects a comfortable temperature in a private house, it is important where the coolant is accumulated and where the heat carrier accumulates. Assortment of modern radiators for heating of residential premises is huge.
How to choose: Heating Batteries for Private House
Permanent author Houzz. Construction journalist, “Engine”, Experimentator and practitioners. I love my cottage: invent, design, build, instill, deal with engineering systems. From time to time, the “country” hobby becomes source of income: cooperate with media profile, consult you to choose a house, a plot, helping representatives of construction companies to promote their projects and establish communication through social networks
There is all another: the composition of the premises, and the microclimate, and the operation mode. How to find a balance between productivity and efficiency of heating batteries? What radiators are better for a private house and apartment?
About gas boilers and boiler house equipment We talked in previous publications. But no less important is the question of how to choose heating radiators for a private house. Vintage cast iron batteries will really give the feeling of home comfort. Minus that they will warm the room only by the end of the weekend, when it is necessary to return to the city. And the batteries of convector type. on the contrary: heat will be allowed quickly, but also quickly cooled.
Making a bet on water warm floors, you risk getting the effect of hot beach sand, but at the same time you fall to sleep in a cold room.
Deciding which radiators to choose for the heating of a private house, the owners of large areas usually want both, both, and the third. For example, warm floors in the ground floor rooms, radiators in the attic, in-country convectors in rooms with large glazing surfaces. But different types of devices have different heat transfer, adjustment capabilities, require different coolant temperature. “Make friends” with boiler equipment. the task for professionals.
In this article we will tell you that it is desirable to know about the batteries of the homeowner.
- There is usually a furnace or fireplace in the country house. This is not only an important element in the interior, but also an assistant heating system that allows you to quickly provide a comfortable mode in the room.
- In local heating systems (country house). low pressure of the coolant, excluded hydrowards and a danger of pouring neighbors from below.
What is my ultimate Home Storage Battery. Is it better than a Powerwall or Givenergy?
- If the apartment maintains a constant room temperature, then the possibility of separate automatic adjustment is important in a spacious country house. in order not to warm up empty rooms.
- In the country house, air humidity is always higher than in the apartment on the middle floor. Sharp temperature differences (arrived. included heating at full power) lead to the formation of condensate.
Battery, Radiator or Convector of this question, then confusion arises. Clause clarity. Battery is source name for the heaters of different types. Familiar to us since childhood cast iron battery, as well as modern steel, aluminum and bimetallic. all radiators. Under the definition of “convector”, the devices of different types are hidden: direct heating electroconvectors (those that are included in the outlet), gas and actual battery convectors. The latter are used in water heating systems.
What is better for a country house: radiators or convectors? All types of heating devices have their advantages: otherwise, good modern solutions would have crowded bad and outdated. Because all the devices peacefully get along the heating equipment market. Radiators are distinguished by high inertia convectors (slowly heated and cool it for a long time), large volume of coolant, relatively low heat transfer, but most importantly. the method of heat transfer.
Heating method: radiation or convectionkack method heating better? For evenly heated and dried from the autumn of the city apartment, where room temperature is constantly maintained, this question is not so fundamental as for a country house, which in winter is used on occasion to occasion. only for Sunday recreation.
Heating devices convection type (convectors) quickly heat air. And he in turn transfers heat to enclosing structures. Radiator, like a brick oven, radiates heat into the surrounding space, heating walls and furnishings. Next to the hot radiator battery you will be warm and cozy, and the air will be dry and awesome cool. But to warm the room with cast-iron radiators or a massive brick stove, the system will have to be drawing in the morning, and even better. give the keys to the neighbors and ask them to start the protest from the evening. to your arrival.
Included at full power convector in a matter of hours warms air in a small room. But in the room will be stuffy, and tropical temperature and humidity will be installed under the ceiling. You will have to open windows, with the walls, floors and objects of the situation will still remain cold and wet.
And in fact, and in another case, in two or three days, a comfortable temperature regime will be installed in the house. But you don’t need it if you arrived at the weekend.
In the country house, it is important to combine convection and radial heating. First, modern radiators thanks to the complex configuration of fins all the “few convectors”. Secondly, increase the heat transfer of the radiator due to convection and to ensure quick heating can be used using heat-reflecting screens.
one. Cast iron sectional. not for Dacides you are in the house of the departures, the cast iron is not for you. Such radiators have low heat transfer and large coolant. Where better they are suitable for a country house of permanent residence. Old good cast iron retro radiators are already perceived as an interior accessory. And, by the way, it is not bad to cope with our main task. the premises with high ceilings are well warmed.
Steel, aluminum and bimetallic radiators wished today steel and aluminum radiators, as well as less democratic priced bimetallic heaters (copper or steel pipes enclosed in an aluminum heat exchanger) are characterized by higher heat transfer and require smaller coolant volumes.
By design, steel radiators can be tubular, panel (the most democratic, which are produced from stamped sheets), or sectional (when the same type of battery elements are collected in the ranks). The remaining types of radiators (cast iron, aluminum, bimetallic) are usually sectional.
Myths about heating radiators
In order to promote one or another products, three common non-residents were invented about the heating devices made from various materials:
- heat transfer of aluminum radiators is significantly higher than steel and cast-iron;
- Cast iron radiators are massive, so long heat and cooled, allegedly store heat;
- In the network of central heating there are hydroudars and pressure that only bimetallic heaters are withstanding.
Note. Here are the main well-established myths, we will tell about others in the process of describing radiators.
Compared to ferrous metals. steel and cast iron. aluminum carries out heat much better. I confirm the numbers: the coefficient of thermal conductivity λ aluminum products. 209 W / (M ° C), steel. 47 W / (m ° C), cast-iron. only 42 W / (M ° C). In what snag: heating devices are not made of pure aluminum, but the alloy of the AK12 group. silumin, where 11-13% of silicon and other impurities are listed above in the table.
The purpose of the additive of silicon is to increase the strength and corrosion resistance of the alloy. Physical properties of silumin others, thermal conductivity noticeably below. 168 W / (M ° C). Given the thickness of the walls of the batteries 4-5 mm, the difference in the heat transfer of aluminum and iron devices in practice is invisible. Put in the room 2 of such radiator the same power. you will not be able to determine which it works more efficiently.
Best Heat Explorer. Copper. Plate Plinthic Heaters and Copper Aluminum Water Convectors are made of it.
Stumbling Stone. Copper Prices. On the right photo depicted the heater “Theme” worth 70. E., Dimensions. 400 x 400 x 90 mm, heat flux. only 430 W.
The following factors strongly affect the transfer of thermal energy from any metal battery:
Reference. The difference between the average temperature of the coolant and the heated room is called the temperature pressure (DT). The value is suitable subsequently, when calculating the power of the instruments.
- When heating / cooled, the massiveness of the cast iron does not play roles, since its heat capacity is 9 times lower than the water being inside (0.54 kJ / kg ° C against 4.18 kJ / kg ° C). So the cast-iron battery will cool at the same time with the coolant, no longer. Silumin and steel are faster, because there is a much smaller volume of water.
- Hydraulic blows inside centralized heat supply networks simply does not happen. Maximum pressure in working mode. 10 bar, test. 12 bar. Modern aluminum devices calmly withstand such pressure.
Where to buy heating radiators for a private house
In specialized stores you will find a wide range of heating radiators, and not to lose a lot of time in the store, decide on the choice of the house.
Stores with heating equipment are available in every more or less large settlement, so there will be no problems with the acquisition. But before buying heating radiators for a private house, you need to decide on the equipment brand. We recommend purchasing products of European manufacturers. Batteries from European brands may seem expensive, but the quality will be at the height. As for domestic producers, they do not really seek to conquer the market.
Heating radiators for the private house of Chinese production also have the right to exist. But here you need to carefully analyze the characteristics and reviews. The thing is that the Chinese love to overestimate the numbers and save on materials. As a result, Chinese analogues are less hardy. But consumers are bribed their low cost. We recommend purchasing better, reliable and durable European heating batteries.
Bimetallic heating equipment
Bimetallic batteries without embellish Best heating radiators for apartments. Their feature in combining the benefits of 2 metals, namely steel and aluminum. Steel channels for which the coolant is moving, resistant to corrosion, transmit heat to aluminum panels, characterized by high heat transfer. Thanks to this design, bimetallic batteries:
- Different with high strength, even strong hydrowoods, which even rarely, are maintained, but are found in centralized heating systems.
- Can be used in any capacity of the coolant and do not lose in heat transfer or strength of strength at low pH water.
- Characterized by long exploitation. You can use such a battery for more than 20 years.
- Keep a comfortable temperature regime with a small amount of coolant.
Bimetal heating devices have a higher cost, however, more suitable for apartments
The disadvantages of bimetallic batteries can be attributed:
- High relative to other types of cost.
- Low probability of collectors. Tubes in radiators are narrow because of what the blockage can occur, which is easily solved by cleaning.
- Vulnerability to high oxygen concentration in water. Under such conditions, steel is oxidized, which can lead to the emergence of corrosion, but any device is not protected from such.
The high cost of bimetallic batteries is fully justified by excellent operational data and pays off a long service life.
Types of heating radiators
Several types of heating radiators are distinguished: cast iron, aluminum, bimetallic and vacuum.
Cast iron for brick, stone, wooden buildings
Cast iron batteries. Universal radiators for heating of brick, stone, global and wooden houses. They are almost always installed in multi-storey buildings and are often used in the private sector due to the low price and the most impressive durability. 50-100 years. High resource is achieved due to slow motion corrosion and thick walls.
Cast iron heating radiator with decorative forging. He not only heats the house, but also decorates him.
Cast iron batteries have large internal sections. Therefore, the flow of water in them is not complicated by mechanical impurities, rust falling precipitated. The coolant does not require filtering and frequent air booming.
With reference to the private sector and modern heating trends, cast iron radiators have one drawback. They are distinguished by high thermal inertia, heated for a long time, so they are difficult to use in thermal regulation systems.
- Corrugated shape with ribbon ribs that can cause child injuries. You can warn them with a protective grid, screen.
- Significant weight and load on the foundation, complexity with transportation and demanding quality.
Conclusions: Pig-iron batteries. a traditional choice for water heating systems. They are durable, reliable and inert. Perfect for traditional brick houses, the heating of which works in standard mode. They can be put into systems, of which the liquid is periodically merged, or in which there is an open expansion tank. When thermor regulation, it is necessary to take into account that the heating system with cast-iron radiators must be “screwed” or add power in advance.
Modern batteries that differ from cast-iron precursors weighing and low thermal inertia.
Have an attractive appearance, a simple flat form, due to which rarely cause injuries.
But the main advantage. aluminum batteries have a high heat transfer ratio, which allows their surface to quickly heat the air.
Aluminum radiators are economical in all respects. Their weight is less cast-iron batteries 4 times (1-1.6 kg in one section of aluminum against 5-7 kg in one section of cast iron). The inner cavity places 2.5 liters of coolant (for comparison. up to 10 liters are placed in cast iron batteries). Heat time. 6 times faster cast iron structures. The only absence of savings is in the price of aluminum. They cost 2-3 times more expensive.
Disadvantages of aluminum heaters:
- Service life is less pig-iron and amounts to 15-20 years. Reducing the service life associated with corrosion of aluminum and thin battery walls. Fight with a disadvantage can be controlled by the quality of the coolant, which is quite possible in the systems of autonomous heating of a private house. The heating system must be completely closed, the distilled liquid is poured inside.
- In the process of corrosion inside aluminum batteries, hydrogen is formed. It becomes caused by gas plugs. Which in turn initiates the appearance of cracks and leaks. Fight with this disadvantage of installing valves. They must work automatically.
Conclusions: Aluminum batteries can be installed in the heating system of a private residential building with a closed expansion tank subject to the control of the composition and quality of the coolant. In the heating system it is necessary to pour a special fluid, install automatic bugs. These batteries are ideal for thermostat.
Bimetallic batteries are one of the last expensive developments, which appeared as an alternative to rapidly corrosive aluminum batteries. Bimetallic designs Squares of two metals. steel core and aluminum case. Such a combination allows you to improve corrosion resistance (steel is subject to corrosion less aluminum) and maintain high heat transfer due to the aluminum surface.
Bimetallic heating radiator installed on the wall. The device consists of several sections.
Bimetallic heaters are ideal for private houses with any walls. Due to the low weight, they are installed inside heavy brick buildings and hang on the walls of light carcases. The only disadvantage of bimetallic batteries is their high price.
Latest well-advertised heating batteries with reduced fluid pressure inside. It is positioned as a highly efficient design that quickly gives the heat and welcomes the space. However, vacuum batteries are heating devices with unprovered efficiency. They have. many negative reviews and high selling price.
Convector radiators heating
Converter radiators differ from other types of radiators by air heating. For example, sectional aluminum radiators heat the ambient air, because of which it rises up, while the bottom remains at the bottom. Convector batteries consist of plates, between the edges of which are undergoing aircraft. Air circulates over these channels, heats up and mixed with cold, evenly warming medium. Circulation is constant, because even a large number of partitions and furniture items will not be an obstacle to heating the room.
As the advantages of convectable radiators, you can allocate what they are:
- Resistant to the formation of rust and deposits, since they are produced from corrosion-resistant materials, such as copper.
- Economically spend the coolant.
- Quickly heated.
- Any rooms quickly warm up, including high ceilings.
- Simple in montage.
- Look aesthetic.
- Ergonomic, little weigh.
- Safe because the heat exchanger is entirely closed by the case.
Also in dignity you can record the ability to hide the radiator for the box. The only minus can be called a high cost model, which is fully justified by the characteristics.
Choosing heating radiators for a private house, which is better and suitable specifically for your case, pay attention to the power of the models. Calculate the desired indicator is simple: so if the ceiling height is 3 m in the room, there is one window and one door, then for heating it 1 kV. M. 100 W must. If there are external walls, you should add 30% for each. If there are 2 walls and 2 windows, 30% should be added.
Tip: For the most simple calculation of the required number of sections, you can use the formula: K = S (100 / R), where k. number of sections, r. heat transfer sections, s. Square of the room.
note! Whatever quality and expensive batteries you do not bought, they will not work well if you misinterpret them.
Look at the video in which it tells how to choose a suitable heating radiator.
Properly installed heating system. regardless of type. no one dozen years will work if you comply with all measures and warnings specified in the instruction manual. But the main step is a thoughtful choice of radiators, taking into account the size and type of room, the heat supply system and product characteristics. Warranty is better consulted with sellers in the store.