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Hệ thống sưởi sàn nhà

Floor heating system hot water heat pump – The optimal utility for your home

Economical solution with floor heating

Since ancient times, people know how to take advantage of available materials such as firewood, coal … burn heat and take advantage of that heat to heat the house. The heat is conducted under the floor to warm the floor and radiate heat up to make the house always kept warm and safe.

Hệ thống sưởi sàn nhà
Floor heating system utility for the home

Today, the price of fossil fuels increases, people are always looking for new renewable energy sources to meet the needs of daily life. Floor heating and cooling using a hot water heat pump is an innovative solution, evenly distributing heat to ensure comfortable temperatures for users. Environmentally friendly, energy saving, and cost effective for the family. Therefore, floor heating systems using hot water heat pumps are trusted by many people, prioritizing installation.

So how does a floor heating system with a hot water heat pump work, how is it beneficial?

Floor heating is a modern feature and is essential for the house in the cold winter, especially for families using brick or stone floors. The floor heating system warms the house to create ideal living conditions with warm air without wasting space for installation. In addition, in Vietnam, with the humid air season, the floor heating system will be very effective, keeping your floor always dry, clean, and limiting uncomfortable and slippery mold. What is better than when your floor is always warm, clean. Floor heating uses the liquid method of flowing in pipes to heat the floor.


  • By using liquid instead of air. The performance of the system is greatly increased. Less energy is required than blowing hot air through a duct.

  • Does not burn oxygen; Do not accumulate dirt, mold and bacteria that affect the air quality in the room. Along with that, it helps to keep the floor warm and dry. Makes the floor surface more comfortable and comfortable.

  • The heat is slowly raised, through the zone divider, heats the water then transferred to the floor. Therefore, the body will easily adapt to the heating system, bringing the most comfortable, natural user experience. Because the heat slowly heats up, the time to keep the water in the heater is very long, and the heat is kept in the room for a long time even when the heating system is turned off.

  • Quiet operation, does not cause engine noise or water flow movement under the floor. Ensuring a quiet space for daily activities.

  • Heating partition can be set. Easily divide different heating zones for control. Turn on heating in used spaces. And turn off heating in the spaces you don’t need. Significant savings in energy costs.

  • There is a thermostat to ensure proper temperature regulation for each heating space. The temperature of this heating system can be up to 60ºC.

  • Long service life, absolute safety, a heat pump can be used up to 50 years. The entire water pipeline is fixed under the floor if it is not subjected to a strong impact on the floor, there is definitely no need to repair or replace the system. Minimize the phenomenon of short, fire, explosion, water leakage during operation.

  • Installable with all projects, from apartments, villas to big projects such as hotels, resorts, …


Although it has many advantages over other heating solutions to the floor, it is the most expensive solution to install with high technical requirements.

But if a hot water heat pump heating system is used, a heat pump and a zone divider will be required. Installation requires expertise and high technology to accurately calculate water volume, size, mounting / splitting distance,…. So it will take longer to construct than other systems. Especially suitable for new construction projects because when installing this floor heating system will raise the foundation level to 4-5 cm.

Structure of heating system by hot water heat pump

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Floor heating uses hot water heat pumps

A complete heated floor heating system usually consists of 4 main components: hot water heat pump, hot water tank, circulating pump, floor temperature sensor, control panel, automatic mixing valve system and the water pipes go underground to the main collection pipe.

The heat pump will be responsible for heating water, providing a hot water source for the heating system. Here, based on the heat exchange between water and gas, the water will be heated to a temperature of about 55 degrees C in the storage tank and moved down the pipes.

The central divider is seen as a hot water divider with multiple pairs of hot / cold water pipes. Hot water when passing here will be divided equally to the hot water pipes. Before transferring water to the pipes of different floors / areas, it is necessary to go through the inspector and regulate heat and pressure, ensure the water intake is even and stable. In addition to connecting to the zone splitter to transport water sources, they are also the places that connect to the central controller, which controls the entire operation of the system, and automatically turns the system off if the heat gets too high.

The branch controller is evenly divided in different floors / zones with the number of pairs of hot / cold water pipes depending on the number of zones on a floor. Each pair of water pipes will be responsible for supplying and circulating hot water for a pole using.

The water pipes that have been spread evenly under the floor (below is the backing pad to help insulate and fix the water pipes) will receive hot water from the zone divider. Heat from water will be transmitted through the heat pipe, warming the floor, the human body and furniture. It provides a source of natural warmth, safe, user-friendly and environmental.

One end of the water pipe is connected to the hot water head. The other end of the tube is connected to the cold pipe to transfer the water source in the mainfold, multimix back to the mainfold and back to the heat pump to heat the water.

With the principle of transporting and heating circulating water. The water is always heated and circulated evenly across the floors with a constant temperature

What should be paid attention to when installing a heating system?

Floor size

The size of the floor has a direct effect on the amount of heat released when using the heating system. The larger the area to be heated, the higher the maximum heat output of the system, the larger the room, the higher the heat loss. If the heated area is smaller than the overall area of ​​the floor or room (<80%) then it is difficult for the heating system to generate enough heat to supply the heating system.

Floor material

Solid and solid materials such as bricks and stone have good thermal conductivity so that the heating temperature can be up to 29ºC increasing heating production. Soft materials such as wood, laminate, and linoleum have a relatively poor thermal conductivity with a maximum heating temperature of 27ºC. The higher the floor temperature, the greater the radiated heat, so you should choose a flooring material that is suitable for the house and compatible with the heating system to achieve the best effect.


The heat radiated to the floor surface can be significantly increased if you use the insulation under the heating system. Heating insulation panels come in a variety of thicknesses providing different degrees of insulation. If you do not want to change the finish of the floor or cannot change the size of the heated floor area, then enhancing overall insulation is a good way to reduce heat loss and achieve heat dissipation. lower. Adding cavity walls, roofs and adding floor insulation are all good ways to retain heat and will reduce the heat requirements of any heating system.

Moisture in mortar and flooring

Hệ thống sưởi sàn nhà sử dụng bơm nhiệt nước nóng
Floor heating installation using a hot water heat pump

The screed should be allowed to dry for at least 4 to 6 weeks prior to the heating operation. Since the system is being used for the first time, the mixing valve must be set to the minimum setting in order for the moisture in the grout to dry. The temperature should be increased by two degrees per day until the temperature reaches 45°C.

Use a minimum of 65mm of screed over the insulation for concrete floors or wooden suspended floors. Alternatively, a liquid mortar layer or a 50mm fiber mortar can be used for screed floors.

Care must be taken to protect the pipes while installing the screed. The floor heating system works well with almost any floor type; tiles, carpet (use a carpet with a resistance of less than 0.15m2K / W), laminate flooring, plastic, etc. The floor coverings and adhesive should be suitable for the temperature that the floor heating system will provide; the maximum temperature they need to withstand is 40°C. Carpets and liners together should not exceed the heat resistance of 16-20°C,

Flooring must have a humidity lower than 7% before they are installed, the thickness should not exceed 25mm.

How to calculate the amount of heat needed for home use

You can calculate the amount of heat needed for your apartment to choose the right heat pump. The most common type of mounting consists of a standard pipe diameter of 16mm and a standard spacing between pipes of around 200mm.

Maximum heat output for underfloor heating is 100W / m² for concrete floors and 70W / m² for laminate floors.

For example, if you need to find a heater for wooden floors 6m x 5m (30m²), you only need to calculate: 30 (m²) x 70 (m²) = 2100w or 2.1kW

Building a home is an investment in the future, often for generations. Therefore, in addition to aesthetics it must also satisfy the best economic and living conditions. The installation of water and heating is one of the factors that, although invisible, is very important to the comfort of your family. Well designed and made from high quality materials, floor heating will contribute to the beauty of your home and life.

You need to design floor heating, need more information about design advice, choose the optimal plan, or contact us. DICTECH will advise you in detail to give the best plan, the lowest investment cost, and achieve the highest efficiency.


Add: no 252 Le Trong Tan, Thanh Xuan, Ha Noi.

Hotline: 0939.73.6699 or 0964.394.360

Website: http://dictech.vn