Intrebari Frecvente

  1. Can solar panels replace traditional heating, based on liquid fuels, gas or electricity?

A solar panel or a system of solar panels installed correctly can reduce up to 70% of the cost of heating buildings. Solar heating should be viewed not as an alternative to the traditional total heating, but as a system which ensures a considerable reduction in the cost of heating, especially in the situation existing buildings, whose degree of thermal insulation is reduced.

  1. Do i pay less for domestic water heating if I have a solar panel installed correctly?

Depends on the season. Summer, costs are reduced by almost 100%, reaching as domestic water heating to be free. Spring and autumn these costs are reduced by at least 60%. What makes a solar panel and its investment merits.

  1. How much water heats up a solar panel?

A solar panel with warming tank for domestic hot water heating, daily, an amount equivalent to the average capacity tank at a temperature of 60-65 ° C. In winter months, because the day is much shorter, The water temperature reaches between 15-45 ° C. In summer, sunny days, temperatures can reach over 90 ° C.

  1. Who can mount the solar panel i purchased?

The system is easily installed. Any plumber should know the law to water-cold water pipes in the proper installation of the house in case of solar panels with external tank. In the case of solar panels with boiler inside and contribution to heating is recommended to call the plumbers who have installed solar panels.

  1. Do solar panels work in winter?

YES! Panels are constructed of a right manner, that the exterior temperature does not affect the functioning solar installation. Such a solar panel that will warm water and winter and summer,spring and autumn, due to the absorption of solar radiation. But you must know that winter, the absorption of solar radiation is less, because the day takes fewer hours. However, you can calculate a system - by increasing surface absorption capacity, will lead to a temperature of water heated by the solar panels of 50-65 ° C and winter.

  1. Any type of solar panel works in winter?

NO. During winter installations must be provided with twin cooling circuits, the external circuit playing the role of anti-freezing solutions. There are solar panels for the construction work only during the summer, those with tubes vidate for March-October.

  1. How long does my investment pay out?

In the case of solar panels used exclusively for water an estimate of up to 5 years at most, usually 3-4 years, is decent. In the case of panels used as input to the heat largely depends on insulation of the building in which the solar heating system. Profitability is a solar panel on its long life: peste20 years with minimal maintenance costs.

  1. How much does maintenance of a solar system cost?

If the panel is installed correctly, no maintenance is required. If you panel that the construction works only in summer, water should be removed before the first frost. If you have a more complex system, you dont have to do anything until May. It is advisable though once a year to heat exchangers and grese the top of the tube with a special paste for maintenance.

  1. Panels have glass tubes. What happens if one breaks?

The system works without problems. Tube defects are replaced with another - the price is very low. Replacement is necessary in order not to affect the heating power of the solar panel.

  1. Is water heated on cloudy days?

Yes. When clouds or rain, tubes captures sunlight through the clouds, but with a much lower efficiency. In those days the water will be heated with electric current through the resistance of the solar panel or a water heater inside. Resistance is between 2 and 4 KW and does not involve a high power consumption.

  1. Where are solar panels mounted?

Solar panels are mounted on the roof, in the direction of south or southwest. The idea is that it must be towards the sun as much time as possible during the day. Do Not place it in shady places. Panels are mounted at an angle of about 45 °. The panels weight at least 30-70 kg without water tank and may not affect the structure of the roofs where there are installed. Their weight reaches a few tens of kilograms, depending on the model. Then take into account the volume of water in case of the external tank.

  1. Panels must be protected from freezing. How to proceed?

Solar panels devoted to constructions, their being used only in the summer months, it's enough to simply Clear the installation of water before first frost. In complex systems, which works in winter, solar circuit is used with glycol. The heat is transferred through a heat exchanger. In the days without much light and cold, the controller will set up so that at a minimum temperature is reached to activate the electric resistance to heat the water a few degrees. In the case of the external tank, insulation is required to ensure the minimum loss of temperature along the night.

  1. In case of high temperatures, a solar panel may catch fire?

No. There is no such danger.

  1. To what temperature will water be heated by a solar panel?
    Water temperature by solar heat can reach 120 ° C. Water temperature of the battery heat can reach up to 90 ° C. So domestic hot water can be supplied? at 75-85 ° C during the summer, and at 15-45 ° C during the winter. It's still good to limit the temperature of domestic hot water at 55 ° C to avoid deposits of limestone and also for reasons of safety in use. Limit is through the controller.
  1. Solar panels are only for housing or can be used more widely?

Solar systems work successfully in hotels, hospitals, schools, public institutions, business companies, etc.. It can be mounted on the block as a system for heating water for all residents as well as individual balcony or block wall. In this case you need to obtain a permission from the mayor.

  1. Can i warm a pool with a solar heating system?

Yes, in other countries the practice is to use solar panels to warm water pool. The procedure is one very simple and efficient.

  1. Does the place i live affect the efficiency of solar panel?

Yes. Our country is in B zone with sunlight. It is worth to invest into solar panels because of that. We are favored by the sun!

  1. What are the factors that can damage a solar panel?
    Ice from clouds. The factory ensures the durability of its solar tubes mounted at 45°hitted by ice. If one tube breaks it can be relaced imediately. The tubes are ansured during the waranty.