Heat pump Kahawa
Heat pump Kahawa is a leading brand in the heat pump industry with outstanding quality and technology manufactured for the Japanese and exported to the EU and ASEAN markets. Heat pump Kahawa is a central water heater that replaces direct-fired water heaters that are both energy-consuming and unsafe. The Kahawa water heater will provide a large amount of hot water for many uses and is safe, energy-saving and convenient. Heat pumps are installed on the attic or roof of villas, castles or roofs of hotel buildings. Kahawa Vietnam is the representative of the company in Vietnam, importing genuine products in original packaging, with full import certificates to introduce products, distribute and sell and after-sales in the Vietnamese market. Comparing using a heat pump with using a water heater for a villa with 5 bathrooms (bathrooms) when using a water heater heated by direct electric resistance, 5 water heaters will be needed (each tank has an electric capacity of 2.5 KW x 5 tanks = 12 KW of electricity when in use + 5 switches, 5 atomats, electric cables + installation labor). When using a heat pump (total hot water), only 1 heat pump is needed installed on the roof with an electric capacity of 1.2 KW when using a heat pump, the electric capacity is much less than using a water heater and is safe (because the heat pump operates indirectly like an air conditioner), in terms of convenience when using a heat pump, hot water is always available and provides a large amount of hot water to meet all usage needs.
So using a heat pump - heat pump to heat saves electricity and is much safer and more convenient than using a direct electric resistance water heater.


Kahawa heat pump
Heat pump structure
Heat pump consists of 4 main components: compressor, expansion valve, evaporator and condenser.
Evaporator: Absorbs heat from the environment (has thick and double fins for high heat exchange efficiency and is coated with anti-corrosion and rust-resistant layer in acidic and salty environments)
Compressor: Compresses refrigerant (gas) to increase temperature and pressure (Copeland and Panasonic compressors)
Condenser: Transfers heat from refrigerant to water.
Expansion valve: Reduces refrigerant pressure before returning to the evaporator.
–The heat pump is imported in its entirety with full import certificate
-The tank is made of steel coated with antibacterial heat-retaining enamel to withstand pressure (enamel layer ensures heat retention and antibacterial)
-The middle layer of polyurethane heat-retaining insulation is 50mm thick
-The shell is made of electrostatically painted steel (Safe for equipment and users)
-The hot water tank has a built-in backup resistor that automatically turns on to disinfect the system when maintaining the heat exchanger or when the heat exchanger has a problem, hot water still runs
-The heat exchanger is made of electrostatically painted steel, safe to withstand outdoor weather
-The double heat exchanger is coated with anti-corrosion and anti-rust coating for salty or acidic environments
-The circulation pump is Wilo-Germany, runs smoothly and durably
-Panasonic compressor from Japan
-High heating coefficient, high COP, heats water quickly
-The production system is on a modern technological line Japan guarantees EU export standards
-Central water heater Heatpump Kahawa is a smart choice for everyone and every family.

Video comparing the structure of Kahawa heat pump with other brands of heat pump
Heat pump operating principle
Heat pump is also known as "central water heater" is a machine that uses the principle of thermodynamics, using a small amount of energy to operate the system, taking heat from the environment, transporting heat from the environment, the air is heated indirectly through the gas medium to heat the water in a cycle, including 4 cycles (the operating principle is similar to the operating principle of the air conditioner)
-Evaporation stage (the heat carrier absorbs the temperature of the ambient air and heats up, evaporates into a warm gaseous heat carrier, the air loses heat and condenses into water on the evaporator.
-Compressor heats up the heat carrier, the heat carrier increases rapidly when a compressor force is applied to it.
- Condensation stage (the heat carrier when leaving the compressor is heated to 100 degrees Celsius, enters the condenser, where it transfers heat to the water to heat it to the required temperature of 55 to 65 degrees Celsius, and is led to the insulation tank to keep heat
-Expansion valve (after the heat carrier transfers heat to the hot water, it continues to pass through the expansion valve to form a closed cycle.
Therefore, the heat pump water heater is the optimal solution to save energy for the hot water needs of families or production facilities in hot and humid climates, such as Vietnam.
Heat pump application in family life
Applying heat pump machines to projects of apartment buildings, villas, castles, hotels, with a team of engineers and experts with rich experience to calculate and provide the most optimal clean water and hot water solution for the project and bring convenience with a large amount of hot water always available and safe without worrying about electric shock, saving electricity compared to using direct resistance water heaters (calculating the amount of clean water and hot water supplied to the equipment to ensure enough pressure and flow for optimal safe use...

Video review of actual clean water and hot water systems for families
Heat pump application for hotels
Heat pump hot water solution for family hotels is much more economical in terms of investment costs and electricity costs. Using heat pump heat pump brings safety and continuous hot water supply and large amount of hot water to meet the needs of use and safety. When using a heat pump with low power, it heats up quickly (large and large heat generation efficiency, energy saving) compared to using a direct Mai So water heater, it is not safe and the large power capacity costs a lot of electricity, the installation cost is high (large power cable materials because of the large power capacity, the cost of installing many water heaters is a lot of work, a lot of materials, a lot of investment costs and a lot of electricity)
Comparing when using a heat pump with a water heater, a 60-room hotel with 60 toilets (bathrooms) when using a direct Mai So electric resistance heating water heater will need 60 water heaters (each heater has an electric capacity of 2.5 KW x 60 heaters = 150 KW when in use + 60 switches, 60 atomats, power cables for 60 water heaters). When using a heat pump (total hot water), you only need to use 1 heat pump installed on the roof with an electrical capacity of 4-6 KW. When using a heat pump, the electrical capacity is much less than using a water heater and is safe (because the heat pump operates indirectly like an air conditioner). In terms of convenience, when using a heat pump, hot water is always available and a large amount of hot water is supplied to meet all usage needs.
Thus, using a heat pump hot water solution saves investment costs in materials, installation labor, saves energy and is safe and meets the need for a large amount of hot water and is safe and convenient.
Total hot water solution for hotels
Comprehensive optimal solution when combining the source clean water treatment system (source filter) with the total hot water system for villa, castle and hotel projects:
Video of central water heater for hotels
Please contact an experienced engineer for advice Hotline/ Zalo: 0907 688 569
See more:
- Website : https://kahawa.vn/
- Fanpage : https://www.facebook.com/kahawa.vn/
- Tiktok : https://www.tiktok.com/@kahawavietnam…
- Youtube : KAHAWA VIETNAM – YouTube
