300L Multi-port Stainless Steel Buffer Tank for Heat Pump Heating System

Jun. 26, 2026

300L Multi-port Stainless Steel Buffer Tank for Heat Pump Heating System

Our newly launched 300L vertical buffer tank is specially designed for residential air source heat pump systems.

The inner liner is made of SUS304 food-grade stainless steel, which is anti-corrosion and long service life. The 50mm thick polyurethane foam insulation greatly reduces heat loss. Multiple reserved ports including circulation ports, temperature sensor port, cold water port and drain port make on-site piping much easier.

Core Advantages

Avoid frequent start-stop of the compressor and extend the service life of heat pump units.
Stabilize water temperature and improve the overall heating efficiency of the system.
Compact vertical structure saves space inside the equipment room.

This 300L model is one of the most popular specifications for villa underfloor heating projects in Europe, Australia and Southeast Asia. We support OEM customization for different port layouts and shell materials.

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300L Stainless Steel Buffer Tank Used in UK Villa Heat Pump Project

A two-story private villa in southern England upgraded its old boiler system to an air source heat pump heating system, and was equipped with our 300L vertical multi-port buffer tank.

The original system often caused the compressor to turn on and off repeatedly due to small water volume. After installing the 300L insulated SUS304 buffer tank, the water capacity increased significantly.

The thick polyurethane insulation keeps heat loss low. Multiple reserved ports made pipe connection quick and convenient for local installers.

Project ResultCompressor short cycling was completely eliminated. The heat pump runs more stably, and the total power consumption of the heating system was reduced by nearly 13%.

This 300L tank has become the most popular standard size for UK residential heat pump projects under the Boiler Upgrade Scheme subsidy program.

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Product Link：https://www.alibaba.com/product-detail/Air-Source-Heat-Pump-Storage-Water_1601709829639.html?spm=a2747.product_manager.0.0.35c371d2oCaUfK

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Our company offers a complete line of heat pump units and refrigeration equipment systems, as well as refrigeration compressors, copper fittings, expansion valves, dual-measure gauges, and other accessories and tools, so you can get everything you need for the refrigeration industry in one place. And we can provide you with customized manufacturing services.

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