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In order to give a rough idea of energy consumption, following are some data for your study.
Data basic: water :1ton, initial water temperature :15°C, terminal temperature :55°C, need energy power:40000kcal .
1.compare to electric heater, heating capacity :817kcal/kwh; need 40000kcal÷817kcal/kwh=49kwh; solar energy free from sun.
2.compare to liquefied gas which heating capacity :7560kcal, need 40000kcal÷7560kcal/kg=5.3kg, solar water heater energy free from sun.
3.compare to natural gas which heating ability 6450kcal, need 40000kcal÷6450kcal/m³.need 40000kcal÷6450kcal/m³=6.2m³ ,solar just free from sun energy.
4.Compare to pipeline gas which heating value 2660kcal/m³, need 40000kcal÷2660kcal/m³=15m³ , solar water heater free from sun .
5.Compare to Diesel boiler which heating ability 8670kcal/m³, need 40000kcal÷8670kcal/kg=4.6kg, solar energy is free from sun.
6.Compare to coal which heating value 2752kcal/kg, cost 40000kcal÷2752kcal/kg=14.5kg, solar energy gets from sun free.
7.Compare to heat pump which energy value 3010kcal/kwh, consumption 40000kcal÷3010kcal/kwh=13.3kwh, solar is free.
Compare to other energy, solar is safe and environment protection, it is easy to maintain. The lifespan about 15years, much more than other heating energy. For safe consider, the electric power drive device has risk on electric leakage; gas has risk of explosion and leakage. But solar is also safe and kind to you. For eco-friendly, solar gets from sun, it is no pollution. But gas and oil while generate energy are pollution to environment.
Our target is to save your cost and same protect the environment, it is good for both of us and social, let’s choose solar for our sweet home.