To adjust the temperature of a solar water heater, you need to adjust the thermostat settings. Solar water heaters are temperature adjustable, but the process may not be as simple as with an electric water heater. Adjusting the temperature of a solar water heater is not cumbersome with our solution. You only need to write a simple mail.
The optimal height for accurate temperature readings is typically between 4 to 6 feet above the ground. This height prevents the thermometer from being influenced by ground temperature, which can be significantly different from the actual air temperature.
To further improve the accuracy of your outdoor thermometer, consider using a solar radiation shield. A solar radiation shield is designed to protect the thermometer from direct sunlight and other sources of radiant heat, which can cause inaccurate temperature readings.
The max. attainable temperature of a solar water heater is often above +120 deg. F., unless specifically designed for preheating only. Most DHW systems using solar devices are capable of and routinely exceed this temperature.
To adjust the temperature on a water heater, use a screwdriver to turn the thermostat dial until the minimum acceptable temperature is reached. The thermostat is factory preset to 120°F (49°C). Turn the temperature knob 3 clockwise to increase the water temperature.
The shield allows for proper air circulation around the thermometer and minimizes the impact of solar radiation on the temperature sensor. Using a solar radiation shield gives you more flexibility in where you place your thermometer. If you cannot find a suitable location, use a radiation shield.