Completed Sigma solar systems (solar : collectors and boilers)
m² Sigma collector surface area
Total content in tonnes of Sigma mounted boilers
m² of collecting surface and 20000 litres in boiler, per year
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The solar water heater is an appliance that can be affected by the significant drop in temperature due to bad weather. The greatest risk for the water heater to be damaged is if it does not have the necessary...
Find the best solar water heater system in 5 steps.