heat pumps, China heat pumps, water source heat pumps, air source heat pumps

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• History of Water Heaters

  1. High-power Gas Water Heater
  It is the first generation but has several shortages. Firstly, the temperature and pressure of output water will be affected easily by climate, so the water temperature is instable and can hardly be regulated. Secondly, its burning consumes a huge amount of energy and exhausts much poisonous waste gas. In addition, its lifespan is short.
  2. High-power Electric Water Heater
  This kind of water heater mainly has two disadvantages. The first one is resulted from the high energy consumption. There is a large possibility of electric leakage, which may harm users, and insufficient water storage. What's more, the water temperature is so high that it will make the tank insideseriously scaled and reduce the service life of itself.
  3. Solar energy water heater
  Theoretically, this is the most energy-efficient water heater. However, in the rainy or cloudy days or the winter of the north, the solar energy water heater must be operated with the assist of an extra electric power. This extra power system serves as a huge electric water heater which hides serious security issues. Because of the open-type system of the solar energy water heater, the pressure of hot water completely depends on altitude difference. As a result, the degree of comfort is not good enough. In addition, the vacuum tubes, which are commonly used by general the solar energy water heater, are quite frangible, and the maintenance of it will bother you too much.
  4. Air Source Heat Pump Water Heater
  The price of air source heat pump water heater is high, but it is multifunctional. Aimed at the existing situation, we know that this product can transfer the heat from the air into the water tank. Then it heats the water and exhausts the cooling air, which lose a quantity of energy, into the kitchen at the same time. When the air loses energy, its temperature will fall and a quantity of steam will condense. As a result, the humidity of the cooling air will be reduced. In a word, this product can be used as a multi-functional installation that combines the functions of central energy-saving heating, kitchen (toilet) cooling and local drying. The cost performance and usability of this product has been highly developed. It will offer customers the high-quality enjoyment of live.

• Heat Pump Application

  In HVAC applications, a heat pump is typically a vapor-compression refrigeration device that includes a reversing valve and optimized heat exchangers so that the direction of heat flow may be reversed. The reversing valve switches the direction of refrigerant through the cycle and therefore the heat pumps may deliver either heating or cooling to a building. In the cooler climates the default setting of the reversing valve is heating. The default setting in warmer climates is cooling. Because the two heat exchangers, the condenser and evaporator, must swap functions, they are optimized to perform adequately in both modes. As such, the efficiency of reversible heat pumps is typically slightly less than two separately optimized machines.

  In plumbing applications, heat pumps are sometimes used to heat or preheat water for swimming pools or domestic water heaters.

  In somewhat rare applications, both the heat extraction and addition capabilities can be useful, and typically results in very effective use of the input energy. For example, when an air cooling need can be matched to a water heating load, a single heat pump can serve two useful purposes. That is, a heat pump domestic water heater located in the living area of a home could cool the home, reducing or eliminating the need for additional air conditioning. This installation would be best-suited to a climate that is warm or hot most of the year. Unfortunately, these situations are rare because the demand profiles for heating and cooling are often significantly different.

• Air Source Heat Pumps Advantages

  1. Safety
  Air source heat pumps use the air, instead of the electric heating elements or gas, thus little gas will be revealed to the air and the accident of carbon monoxide poisoning or electric leakage will be avoided completely.
  2. Comfort
  Air source heat pumps can store a lot of heat, so its heating function can start at any time in a day. Better than the gas water heater, users can use hot water through different faucets at the same time. In a word, the air source heat pump water heater has a great capacity of hot water and keeps a stable water temperature.
  3. Economic
  Air source heat pumps also use electric energy. However, their consumption of electricity is just equivalent to a quarter of the electric water heater, when they heat the equal quantity of water. Therefore, the air source heat pump water heater can help the family cut down the expense. 
  4. Environment friendly
  The gas water heater heats up water by burning the combustible gas. When it works, it will exhaust a great deal of carbon dioxide and harmful waste gas, like sulphur dioxide and carbon monoxide etc., at the same time. The air source heat pumps water heater only transfers the heat from the ambient air to water. Thereby, it can completely prevent the emission and scarcely generate impact to the environment.