Hello esteemed building experts!
Our single-family house has a combined storage tank (750 liters (200 gallons)), of which 200 liters (53 gallons) are allocated to the domestic hot water tank. The energy sources include a wood stove, an electric heating element, and a solar system. The storage tank is used for both the radiators and the domestic hot water.
The 200-liter (53-gallon) hot water section of the combined storage tank is continuously refilled with fresh water. Is significant limescale buildup to be expected in this area? This could at least interfere with the heat exchange between the two storage sections.
To prevent limescale formation, the solar system and the electric heating element only heat the water up to a maximum of 70 degrees Celsius (158°F), which is supposed to help... however, the wood stove can reach 90 degrees Celsius (194°F) or higher.
Question: Is it sensible or necessary to also limit the heating temperature of the stove to a maximum of 70 degrees Celsius (158°F)? Does this really help with preventing limescale? Could someone give me basic guidance on how to maintain a combined storage tank?
Our single-family house has a combined storage tank (750 liters (200 gallons)), of which 200 liters (53 gallons) are allocated to the domestic hot water tank. The energy sources include a wood stove, an electric heating element, and a solar system. The storage tank is used for both the radiators and the domestic hot water.
The 200-liter (53-gallon) hot water section of the combined storage tank is continuously refilled with fresh water. Is significant limescale buildup to be expected in this area? This could at least interfere with the heat exchange between the two storage sections.
To prevent limescale formation, the solar system and the electric heating element only heat the water up to a maximum of 70 degrees Celsius (158°F), which is supposed to help... however, the wood stove can reach 90 degrees Celsius (194°F) or higher.
Question: Is it sensible or necessary to also limit the heating temperature of the stove to a maximum of 70 degrees Celsius (158°F)? Does this really help with preventing limescale? Could someone give me basic guidance on how to maintain a combined storage tank?
B
bastian-14 Dec 2014 14:46This is quite a complex topic with arguments on both sides. If the temperature is raised from 70 to 90 degrees Celsius (158 to 194 degrees Fahrenheit), more energy will be required. Additionally, the system takes much longer to reach boiling point. This process also leads to increased scale buildup.
Reducing the temperature prevents this.
Reducing the temperature prevents this.