A Hydronic Buffer Tank, also known as a horizontal stainless steel tank is a cylindrical storage vessel fabricated from corrosion-resistant stainless steel and designed to sit on its side rather than vertically. The horizontal orientation gives a low center of gravity and enhanced stability, making these tanks easy to install under height restrictions and ideal for ground-mounted installations. Common stainless steel grades such as 304 and 316L ensure strong corrosion resistance, hygienic surface quality, and compatibility with potable water or process liquid applications. With capacities tailored to household needs, these tanks support a reliable, clean water supply for daily use and integration with home heating technologies. The smooth stainless steel surface inhibits bacterial growth and preserves water quality, while insulated versions help reduce heat loss when used with hot water systems.