For villas without central heating, which heating method is the most affordable?

Personally recommend floor heating! The common terminal forms of heating in winter mainly include floor heating, central air conditioning and radiator, and the three heating methods have their own advantages and disadvantages. Through the comparative analysis of these three heating methods in many aspects, this paper further expounds their respective characteristics. First, the advantages and disadvantages of floor heating analysis The principle of floor heating is a heating method that radiates heat through the heat body on the floor, so it can also be called floor radiant heat. Its advantages are: 1. Floor heating is a kind of bottom-up gradient heat dissipation, which is beneficial to human health and meets the comfort requirements of "cold head and hot feet"; 2. Heat dissipation through the floor does not occupy plane space, and also meets the aesthetic requirements; 3. This bottom-up gradient heat dissipation is different from the heating principle of central air conditioning and radiator, which meets the requirements of energy saving. In the above heating terminal form, for the same heat source, under the same building conditions and the same heat source conditions, the radiant heat of electric heating floor can save 20-30% of the cost compared with the charged radiator; 4. Because there is no directly exposed heating device, the safety is higher and there is no noise. The disadvantage of floor heating is that it requires high decoration and cannot destroy the floor. For example, there are certain restrictions on nailing on the floor. Second, the advantages and disadvantages of central air conditioning heating analysis The heating principle of central air conditioning is to achieve the purpose of heating through the hot air heating form of dynamic wind. Compared with the other two heating methods, its biggest advantage is that it can realize both hot air heating and cold air cooling, which is the so-called integration of refrigeration and heating. But at the same time, air conditioning heating also has some shortcomings, mainly because air conditioning heating directly blows out hot air through mechanical power. Compared with the other two heating methods, it not only makes the indoor air dry, which is not conducive to human health, but also makes the indoor temperature higher in the upper space and lower in the lower space from top to bottom, which does not meet the comfort requirements of "cold head and hot feet", and this thermal cycle will seriously affect energy saving. In addition, the central air conditioner occupies a large space, makes a lot of noise, and has a high cost, so does the normal use cost. Third, the advantages and disadvantages of radiator heating analysis The heating principle of radiator is a heating method that realizes convective heat dissipation through indoor air circulation. The advantage of this heating method is that it uses the cold and hot circulation of air, and the cold and hot air realizes natural convection in indoor space, so it is more comfortable, noiseless and relatively low in cost than the mechanical power air circulation method used in air conditioning. Its main disadvantages are that the top-down heat convection heating mode is adopted, the hot gas gradient is unreasonable, which does not meet the comfort requirements of "cold head and hot feet", and it also wastes resources and does not save energy, just like air conditioning heating; On the other hand, radiator heating needs to occupy the plane position, which also affects the appearance. Four. Comparison of heating methods and performance Comparison of heating methods and performance Table Comfort, energy saving and aesthetics of heating methods Price noise

Floor heating is the best, the best, the best, the medium and the least.

Radiator heating is generally the worst and least.

Generally speaking, floor heating mode should be the development direction of heating system in the future commercial housing market. With consumers' recognition of floor heating methods, more and more developers will adopt floor radiant heat, and relevant government departments will undoubtedly support the environmental protection and energy saving of floor heating. V. Analysis of floor heating forms At present, there are two forms of floor radiant heating: one is water-heating floor radiant heating with buried water coils, and the other is electric floor radiant heating with buried heating cables. The water heating mode has the advantages of ordinary floor heating mode, but compared with the electric heating mode, it is not easy to control the temperature of each room because the radiant heat of the water heating floor adjusts the temperature through the amount of water, and the effect is not good and energy is not saved. In addition, the radiant heat of the water heating floor also has some daily hidden dangers. For example, once the heating equipment fails, it is easy to make the water in the water pipe freeze and expand, leading to the freezing crack of the water pipe; In terms of engineering construction, the construction method of electric heating is also better than water heating.

The radiant heat of electric floor effectively avoids the shortcomings of radiant heat of water heating floor, and has the advantages of low engineering difficulty, safety and reliability, rapid and direct adjustment of room temperature and more energy saving. In addition, if there is local damage, the radiant heat of the electric heating floor can be accurately located by the detection system, and then repaired, without causing large-scale damage to the ground. Therefore, for the first set of houses in the above two forms, floor heating can be used, and for the second set of houses that are often vacant at ordinary times, such as suburban villas, it is best to use electric heating floor to dissipate heat. Because the radiant heat of the electric heating floor can directly control the temperature of each room and adjust it quickly, this is especially important for the second residence. At the same time, the second residence may be vacant for a long time, and a more reliable, safer and more energy-saving electric floor heating method is more suitable for the application of the second residence. In short, the radiant heat of electric heating floor will gradually occupy the market. The following questions and answers about floor heating knowledge are listed for your reference. 1. What are the advantages and disadvantages of floor heating compared with radiator? First, advantages: 1, high comfort. The hot air is from bottom to top, and the feet are warm and the head is cold; 2, does not occupy the room area, and can save limited space for smaller houses. Second, the disadvantages: 1, large thermal inertia, slow heating and cooling, not suitable for office workers' families and intermittent heating places; 2. It is inconvenient to maintain. If the pipeline leaks for some reason, it is not easy to find it. If you want to maintain it, you must pull apart the ground covering material and concrete; 3. The floor should be raised about 10CM, and the lower floors should not be installed. Second, where is the floor heating suitable for installation? Suitable for families with old people and children at home, and families with people at home all the time, the floor should not be too low; Not suitable for office places, not suitable for office workers' families (that is, no one is at home during the day and only one person is at home at night) and other intermittent heating places. 3. Which is more energy efficient, floor heating or radiator? This has a lot to do with whether the building is an energy-saving building, whether the whole building is heated, whether it is long-term heating or intermittent heating, and whether the ground is covered with floors or tiles. Under the same conditions, under the long-term heating condition of the whole building, floor heating may save a little energy; If there is no heating upstairs and downstairs, radiator heating should save some energy, especially for intermittent heating, radiator can save energy significantly; If floor heating is installed, it is best to lay tiles, which saves energy by 30-60% compared with laying floors. Therefore, friends who like to spread wooden floors had better install radiators. 4. What are the types of floor heating? 1, divided into electric floor heating and liquid circulation system according to heat medium; 2. According to the construction technology, it can be divided into dry floor heating and wet floor heating. What we usually call floor heating refers to the wet circulation system. 5. What floor heating pipe should I choose? Generally speaking, all qualified products produced according to the current national pipe standards can be safely used as heating pipes in circulating water systems. Such as aluminum-plastic composite pipe (XPAP), heat-resistant polyethylene (PE-RT), cross-linked polyethylene (PE-X) and polybutylene (PB). PE-X and PE-RT pipes are the most widely used, and plastic pipes can be divided into ordinary plastic pipes and oxygen-blocking plastic pipes. The best is XPAP aluminum-plastic composite pipe, which is pressure-resistant, high-temperature-resistant, oxygen-impermeable, flexible and has a long service life. It is the best floor heating pipe, but the price is high, which is not affordable for all families. Secondly, it is best to use oxygen barrier tubes. Both aluminum-plastic pipes and oxygen blocking pipes ensure that oxygen will not penetrate into the hydraulic power of the system, protecting valves, metal joints, boilers, circulating pumps, heat exchangers, etc. Avoid corrosion, cause sludge in the system, and prolong the service life of the floor heating system. 6. What is the structure of floor heating? At present, the commonly used basic forms are: from bottom to top, floor slab, insulation board, aluminum foil reflective film, barbed wire, floor heating pipe (fixed with cards), pea stone concrete filling layer, isolation layer (wet room), leveling layer, floor surface layer (ceramic tile, laminated floor, solid wood composite floor, etc. 7. When is the best construction time for floor heating? The construction time of floor heating is generally divided into three steps. Step 1, install a main pipe and a water separator after wall reconstruction, and carry out hydropower reconstruction after the wall is pressed to be qualified; Step 2: After the renovation of all the decoration foundations is completed, all the work that needs to be dug and punched is completed, the bathroom is waterproof and closed, and the floor heating can be laid after confirming that it is watertight. After completion, the pressure test is qualified, and the floor heating pipeline is maintained; The third step is to install the wall-hung boiler, which is the main equipment of heat source. After the decoration is finished, the curing period of bean stone concrete has passed, and the tiles at the installation position of the wall-hung boiler have been pasted or the wall surface has been painted. 8. What floor covering materials are available for floor heating? The main materials that can be used as the surface layer are: ceramic tile, laminated wood floor, solid wood composite floor and heat-resistant solid wood floor, and materials with thermal resistance less than 0.05m2 k/w should be adopted. In terms of thermal resistance, ceramic tile and marble are the best (thermal resistance is only 0.02 ㎡ k/w), and wood floor is the worst (thermal resistance is 0. 1 ㎡ k/w). Under the same heating conditions, the heat dissipation of ceramic tile floor is 30%-60% higher than that of wood floor. It can be seen that the use of ceramic tiles as the surface layer can significantly save energy. Generally, solid wood floors are not used in the laying of floor heating rooms. One is that the heat can't be dissipated, and the other is that it is easy to change color after long-term high-temperature baking. Note that when laying the ground covering material, it is not allowed to punch nails on the ground, lay wooden ridges, and do not lay heat-insulating and moisture-proof films under it, otherwise the heat will not be dissipated. 9. What does the general floor heating quotation include? Generally, the quotation of floor heating only includes: insulation board, aluminum foil reflective film, barbed wire, floor heating pipe and installation fee, excluding bean stone concrete filling (bean stone concrete shall be constructed by qualified civil construction parties according to national requirements), excluding auxiliary materials such as water mixing center, water separator and its supervisor in the direction of heat source, insulation sleeve, etc. (It is best not to let the floor heating company include these equipment and auxiliary materials in the overall quotation of floor heating per square meter, so as to avoid cutting corners. The installation cost of main equipment is extra. X. What should I pay attention to in floor heating design? 1. Which pipe laying method is better? The best folding type, with the water inlet pipe and return pipe laid at intervals, makes the indoor temperature field more uniform. This method is generally used in a large area; You can only use parallel type (S type) in narrow space, because it will cause uneven hot and cold. 2. How thick is the suitable pipe for floor heating pipe? Generally, it is recommended to choose 1620 or 12 16 pipes for central heating system, but each designed loop should not be too long, preferably not more than 80m. It is recommended to choose 12 16 pipeline for independent heating system. If 1620 pipeline is selected, the laying spacing of the pipeline should be increased. According to national standards, the maximum length of each round trip shall not exceed 120m. 3. What is the most suitable spacing between floor heating pipes? Generally between 15-30cm. According to the thickness and design heat load of the floor heating pipeline, the pipeline spacing is calculated. The spacing between floor heating pipes should not be designed as dense as possible, especially in different rooms, because the ground temperature should not be too high, and the ground temperature in places where people often stay (such as restaurants, study rooms and bedrooms) should not exceed 28℃, otherwise it will easily cause venous vascular diseases in people's calves. There have been profound lessons in Europe before.