The most commonly asked questions about Air Source Heat Pumps

1. What are air source heat pumps (ASHP)?

A. Air Source Heat Pumps use basic thermodynamic principles to convert latent/sensible heat (contained within the ambient air) into heat energy that can be used to provide heating and hot water. In this respect the device can be classified as a renewable energy source because the heat in the ambient air is replenished by the sun.

2. How do air source heat pumps work?

Take refrigerant as the medium, the refrigerant can be vaporized at -40℃low temperature. Therefore, there is temperature difference with outside air. refrigerant absorbs the temperature from outside air, compressed by compressor heating, turn into the high temperature high-pressure gas, exchange heat via the heat exchanger with water, to release pressure via the expansion valve , back to the low-temperature low-pressure liquefied state, through a continuous cycle of refrigerant.

3. What is different about Detian air source heat pumps?
A. Air source heat pumps generally fall into three categories:
1) Units that have been designed specifically for heating only.
2) Units that were originally designed for air conditioning (cooling), but have been modified to provide heating.
3) Units that were originally designed for both cooling and heating with cooling the main function.
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Detian air source heat pumps falls into all the three categories, having been designed specifically for heating homes. The unit is available in five sizes ranging from 6.5kW-15.5kW.

4. Does heat pump products need electricity?
There must be electricity used for compressor and fan normal working.
Air source heat pump water heater's characteristics.
1) without environmental impact, available all year round;
2) the energy saving effect is prominent, and the payback period is short;
3) 3environmentally friendly products, without any pollution;
4) longevity, low operating costs;
5) Run safe, unattended operation;
6) the modular design, easy to install.

5. The advantages of heat pump water heaters compared with the boiler?
High thermal efficiency: air source heat pump water heater thermal
1)efficiency more than 300% for annual average, while the thermal efficiency of the boiler does not exceed 100%.2, low operating costs: compared with oil, gas boiler, 70% of the energy for annual average, and increasing fuel prices.
2) low running costs have become increasingly prominent.
3) No combustion emissions, environmental protection.
4) Unattended safe operation: compared to fuel boilers, running absolutely safe, and automatic control, no staff on duty may be savings staff costs.
5) Module installation, easy to add devices, multiple units installation in parallel mode, when the water consumption increases, add equipment at any time.

6. What are the disadvantages of the heat pump water heater compared with the boiler?
1) More time to heat: air source heat pump take the refrigerant as the medium, the use of compressor compression heating, compared with the boiler direct heating mode, the speed is relatively slow.
2)  One-time investment: compared with fuel, gas boiler, when water consumption is greater than 10 tons, one-time investment is greater than the boiler, the more water needed, the more costs to invest.
3) Heating water temperature is limited to: heat pump water temperature at 60 ° C (water source heat pump up to 80 ° C), air source heat pump water heater could not produce more than 80 ℃ high temperature water or steam.

More information please visit our website: 1. What are air source heat pumps