Comparison different types of water heaters of 150L (rounded prices) Calculation over 10 years and with two adults
Ordinary electric water heater
Purchase price € 500 + annual consumption € 720 x 10 years = € 7700
Electric boiler with Smart function 20% less energy consumption
Purchase price € 650 + annual consumption € 580 x 10 years = € 6450
Solar water heater with back-up resistance for the gray days
Purchase price € 2500 + annual consumption € 100 x 10 years = € 3500
* Prices of quality water heaters
Conclusion: a solar water heater is about € 2000 more expensive, but you save about € 500 in energy costs annually, a solar water heater is paid back in 4 years!
Extra tip: you can connect your dishwasher and / or washing machine directly to your solar water heater, so these appliances also consume less energy!
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