TESY Buffer Tank Heat Pump Buffer Tank 80L | 4-Port Wall-Hung Insulated

TESY Buffer Tank Heat Pump Buffer Tank 80L | 4-Port is a compact buffer vessel designed to improve stability and efficiency in heat pump and multi-source heating systems. It helps maintain steadier temperatures and provides reliable hydraulic separation, making it a strong fit for both domestic and light commercial installations.

With four ports (2 inlets, 2 outlets) and G1 ½” metal connections, it’s built for straightforward integration and good flow rates across a range of renewable heating set-ups, including heat pumps, biomass, and solar. It also includes two thermo sensor pockets to support accurate temperature monitoring and system optimisation.

To help minimise heat loss, the tank uses INSUTECH insulation (32mm high-density) and is finished with a clean white metal jacket. An integrated mounting plate supports vertical wall installation, and there’s the option to add an electric heating element for extra versatility.

Key features

• 80L buffer tank capacity: supports stable system temperatures and smoother operation
• 4-port configuration (2 in, 2 out): practical connections for common heat pump layouts
• G1 ½” metal connections: designed for strong flow performance
• Suitable for renewable systems: compatible with heat pumps, biomass, and solar
• Two thermo sensor pockets: supports monitoring and optimisation
• INSUTECH insulation (32mm): helps reduce heat loss and improve efficiency
• Vertical wall installation: integrated mounting plate for space-saving fitting
• Safety vent opening: air vent located on the top
• Optional upgrades: anti-condensation insulation and electric heating element

Specifications

• Capacity: 82 litres
• Connections: 4 ports (2 inlets, 2 outlets)
• Connection type/size: G1 ½” metal connections
• Rated pressure: 6 bar
• Maximum operational temperature: 95°C
• Energy class: C
• Insulation: 32mm high-density (INSUTECH technology)
• Heat losses (ΔT 45K): 53.8 W
• Dimensions: 470mm diameter
• Net weight: 23kg
• Finish: white metal jacket
• Mounting: vertical wall installation (integrated mounting plate)

Installation & compliance

This item must be installed by a qualified heating professional and specified correctly for your system design and heat pump requirements. Always follow the manufacturer’s installation instructions and ensure all fittings, valves, and safety components are selected to suit the system.