Solar Water Heater

At 70% heating capacity, the solar water heater works fairly well.  It just take longer time for the hot water to reach the shower head.  The water pressure is also low as it just gravity feed.  My boys are getting used to it as they still forget and tried to switch on the electric heater.  I will see how much electricity we will save using solar.  Only two bathrooms.  I am quite happy that my dream of saving the earth or least reducing my carbon footprint has another dimension other than my green car.