shmilydo

General solar hot water with water in the daytime sun warms up one day at least 30 degrees, again, on the same day without water must have a sunny day, 50-60 degrees, even if later on a cloudy day, or night, also should have 40 degrees temperature above, can generally bathing, besides is the emperor bright, unless the continuous cloudy, number of electric heating little. If not, it should be used for insulation, the seller or the manufacturer checked. Look below the solar water heater and working principle of the conditions of use:
A: Solar water heater basically is to rely on daytime trap the sun's ray of light, the light into heat energy to heat the water tank, solar water heater tank have heat preservation function, so at night can use hot water for people. 2: can absorb the moonlight and star of solar, I have never seen nor heard after several years, may have, but not now, because it's there for the sun energy is too small, be ignored don't remember. 3: wet snow used? Now the solar energy water heater with automatic sheung shui, basic water level shows, automatic manual heating function of the microcomputer control apparatus, so it was a electric water heater (the sun used the sun heating, didn't the sun can choose electric heating), just make up water shortage brings disadvantages wet snow without temperature control instrument function (except the solar energy water heater.
4: Solar collectors shell is not very hot? No, water heater with the principle of vacuum tube thermos similar (different is it not only insulation also finish the work light energy converts to heat energy), and we use the thermos outfit hot water but it was cold in the enclosure, such ability adiabatic, its heat insulation barrels is the same, just not in vacuum heat preservation, but a polyurethane foam insulation (thermos heat preservation effect than even better).
5: winter used? solar panel part of winter and summer, FenYin shine, so the solar energy water heater in winter the water clear also is very hot. These are the answer to your question above, original, a word a word to hit, rather than simply copy paste, ha ha, the hope can help you.