HOT ! BUFFMAX 20 STD - Buffer Tank

Optimize Any Hydronic Heating System with BuffMax® 20 by Thermo 2000

The BuffMax® 20 thermal storage tank is a high-performance 3-in-1 solution designed to optimize and improve the efficiency of any hydronic heating system. Acting simultaneously as a buffer tank, storage tank, and hydraulic separator, BuffMax® 20 is ideal for use with:

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  Low-mass boilers

  
  


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  Biomass heating systems

  
  


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  Geothermal systems

  
  


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  Heat pump systems

  
  


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  Multi-zone hydronic systems

  
  


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  Solar thermal energy systems

  
  

🔋 Buffer Tank – Reduce Short Cycling & Maximize Boiler EfficiencyIn hydronic systems, short cycling occurs when the system load is lower than the energy source\'s minimum capacity—leading to frequent on/off cycles, premature equipment wear, and energy waste. The BuffMax® 20 buffer tank increases runtime efficiency and prevents these short cycles, extending the lifespan of your heating equipment and reducing energy consumption.

Benefits:

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  Prevents boiler short-cycling

  
  


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  Enhances system longevity

  
  


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  Maintains steady water temperatures

  
  

🌡️ Storage Tank – Store Thermal Energy Like a BatteryThe BuffMax® 20 thermal storage tank acts like an energy battery—storing heat and releasing it only when needed. During low heating demand periods or when used with a low-capacity energy source (e.g. solar, geothermal), the tank helps deliver immediate thermal energy without activating the primary source.

Ideal For:

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  Partial load or intermittent heat demands

  
  


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  Reducing startup cycles

  
  


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  Enhancing solar and renewable integration

  
  

🔄 Hydraulic Separator – Improve Pump & System PerformanceBy functioning as a hydraulic separator, the BuffMax® 20 improves system flow, balances circuits, and protects pumps and other components. It effectively removes air, sludge, and debris, helping maintain the efficiency and safety of the entire hydronic network.

System Optimization:

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  Ensures optimal pump operation

  
  


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  Removes air and impurities

  
  


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  Balances flow between energy source and distribution

  
  

🌍 Compatible with a Wide Range of Hydronic SystemsBuffMax® 20 buffer tanks are highly recommended for:

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  Low-mass boiler optimization

  
  


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  Multi-zone hydronic heating

  
  


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  Biomass boiler integration

  
  


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  Solar water heating systems

  
  


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  Heat pumps and geothermal systems

  
  

⚙️ BuffMax® 20 Features & Technical Specs

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  High-performance insulation: 2” HFC-free polyurethane

  
  


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  Max operating pressure: 150 psi (125 psi for ASME-certified units)

  
  


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  Multi-functional design: Buffer tank, storage, and hydraulic separator

  
  


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  Hydraulic connectivity: 4 openings for system separation

  
  


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  Versatile sizing: Available in 8 different tank capacities

  
  


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  Immersion well: Multiple positions for sensor placement

  
  


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  Adjustable legs for stable installation

  
  


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  ASME models available

  
  


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  Warranty: 10-year for HT applications, 5-year for CW applications

  
  

Model: BuffMax 20 STDProduct Code: BUFF20 - 1.5NPT - HRZ - HCHandles Both : HT (Hot Water) and CW (Cold Water)

✅ Why Choose BuffMax® 20 for Your Hydronic Heating System?

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  Increases overall system energy efficiency

  
  


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  Prevents unnecessary wear on boilers and pumps

  
  


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  Maximizes performance of solar, biomass, or geothermal systems

  
  


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  Easy integration into existing hydronic setups

  
  


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  Backed by a 10-year warranty for peace of mind

  
  

Looking to boost efficiency and extend the life of your hydronic heating system?Install a BuffMax® 20 3-in-1 buffer tank and get the most from your boiler, heat pump, or renewable energy system.

Warranty: 

10-YEAR WARRANTY FOR HT APPLICATION 5-YEAR WARRANTY FOR CW APPLICATION ON THE TANK

2-YEAR WARRANTY ON MECHANICAL PARTS

Technical Documents:

• Brochure


• Manual


• Specifications