What is a common method of insulation for hot water cylinders?

Fiberglass or foam insulation jackets are a common method of insulation for hot water cylinders due to their effectiveness in reducing heat loss. These materials have low thermal conductivity, meaning they do not easily allow heat to pass through, which helps maintain the temperature of the water inside the cylinder. This insulation not only improves energy efficiency but also can reduce energy costs by keeping the water hotter for longer periods.

Additionally, fiberglass and foam insulation are lightweight and easy to apply, making them practical options for installation on various sizes and types of hot water cylinders. This insulation method effectively complies with energy efficiency regulations and standards, ensuring that hot water systems operate economically while minimizing heat escape.