OSO Tank-on-Tank - Stainless Steel - OPTIMA GEOCOIL OGC - 225/65L

The OSO Optima GeoCoil is a high quality tank-on-tank hot water solution combining a 225L DHW cylinder with an integrated 65L buffer tank. Purpose built for both air and ground source heat pumps, it delivers exceptional efficiency while being perfect for compact installations.

Manufactured from premium duplex stainless steel, the Optima GeoCoil offers outstanding corrosion resistance and longevity. The high-performance GeoCoil heat exchanger ensures rapid and efficient heat transfer, even at low flow temperatures, making it ideal for modern renewable heating systems.

The integrated 65L buffer tank is ideal for properties wanting additional heating control and the 225L DHW cylinder ensures a reliable supply of hot water for small households. The tank-on-tank design minimises footprint and simplifies installation without compromising performance.