Aquacoils Aqua 50 | 50-Gallon Stainless Steel Buffer Tank

Maximize the performance, efficiency, and lifespan of your heat pump or hydronic heating/cooling system with the Aquacoils 50-Gallon Stainless Steel Buffer Tank. Designed specifically to provide essential thermal storage mass, this commercial-grade buffer tank prevents modern air-to-water and water-to-water heat pumps from short-cycling during low-load conditions.

Built entirely with premium 304 stainless steel inside and out, this unit delivers superior corrosion resistance, exceptional thermal efficiency, and lifelong durability in low-temperature or high-temperature hydronic applications.

Key Benefits & HVAC Engineering Highlights

• Prevents Heat Pump Short-Cycling: Adds necessary fluid volume to maintain smooth, continuous compressor runs, reducing wear and tear while boosting overall system COP (Coefficient of Performance).

• 304 Stainless Steel Construction (Inner Tank & Outer Casing): Provides outstanding resistance against aggressive water chemistry and atmospheric corrosion. Unlike mild steel jackets, the 304 SS outer case will not rust, degrade, or chip.

• High-Flow 1-1/4" NPT Ports: Designed for low hydraulic resistance and optimal flow rates required by high-efficiency inverter heat pumps and hydronic distribution systems.

• Defrost Cycle Buffer: Supplies immediate thermal energy during heat pump defrost cycles, preventing room temperature drops or indoor chill.

• 10-Year Manufacturer Warranty: Engineered to industrial standards and backed by a comprehensive 10-year warranty for total peace of mind.

Technical Specifications

System Integration & Applications

• Air-to-Water Heat Pumps: Ideal hydraulic separator and thermal reservoir for monobloc or split inverter heat pumps.

• Hydronic Zone Control: Maintains stable loop temperatures in multi-zone systems when only small zones call for heat.

• Chilled Water Loops: Serves as a reliable buffer in low-volume chilled water cooling loops to prevent rapid chiller cycling.