Heat pump water heater

Heat Pump Water Heater

Top10 China presents the most energy efficient heat pump water heater on Chinese market.

  1. Scope

    Air source heat pump water heater

    Heating power below 10000W

  2. Selection criteria

    Air-source heat pump water heater is the new generation of hot water device after the development of gas water heaters, electrical water heaters and solar water heaters. The energy consumption of heat pump water heater is much lower than electric water heater and gas water heater.

    Air-source heat pump water heaters are new technology products with high energy efficient, Top10 presents consumers products with energy efficiency tier higher than 4.

    We do the compare of energy cost of a tier 4 heat pump water heater and a tier 1 gas water heater to heat 200kg water from 15 to 55 °C, the result is in the following table:

Type

COP

Heating efficiency

Electricity consumedkWh

Gas consumedm3

Cost of energy RMB

Heat pump water heater

3.90

 

2.4

 

1.2

Gas water heater

 

96%

 

1

2.05

Set the calorific value of gas is Kcal/m3, the gas price is 2.05 RMB/m3, the electricity price is 0.5RMB/KWh.

  1. Terms

    Electricity cost (10 years)The electricity cost of heat pump water heater in 10 years, according to the annual electricity consumption below. The electricity price is set at 0.5 RMB per KWh. Unit: RMB.

    Annual electricity consumption: Theelectricity consumed by the heat pump water heater within one year, setting the daily working time of heat pump water heater is 2 hours, unit: KWh.

    Heating capacityThe heat transferred from heat pump water heater to water in certain time, unit: W.

    Heating powerThe input power of heat pump water heater, unit: W.

    COP:The ratio of heating capacity to heating power, unit: W/W.

    Hot water supply capacityThe water supply capacity inunit time from 15°C to 55°C,unit: L/h.

    National energy efficiency gradeThe mandatory grading system for energy using products to disclose the energy performance to the consumers. Grade 5 is the minimum energy efficiency requirement for the market access and grade 1 is the best for the heat pump water heater.

     

Types

Heating ways

Energy efficiency grade  (COP)

1

2

3

4

5

Ordinary

Once heatingcirculation heating

4.60

4.40

4.10

3.90

3.70

Static heating

4.20

4.00

3.80

3.60

3.40

Low-temperature

Once heatingcirculation heating

3.80

3.60

3.40

3.20

3.00

 

4Reference

GB 29541-2013 Minimum allowable values of the energy efficiency and energy efficiency grades for heat pump water heaters

GB/T 23137-2008 Heat pump water heater for household and similar application

GB/T 21362-2008 Heat pump water heater for commercial & industrial and similar application

5Data source

China Energy Labeling Program (http://www.energylabel.gov.cn/)

www.etao.com

Manufacturers

  

   All the information presented at Top10 China comes from public available information sources. If you think you spot an error, please report to info@top10.cn.

   Producers and retailers are kindly asked to contact info@top10.cn about more products which meet the Top10 selection criteria.

2017/2