
Discover the BuffMax’s multiple applications and advantages by reading our product documentation below.
The BuffMax from Thermo 2000 is a 3-in-1 solution that acts as a buffer tank, storage tank and hydraulic separator. It is recommended to optimize the performance of several different types of heating systems: low-mass boilers, biomass systems, geothermal and heat pump applications, multi-zone systems, and solar energy systems. The BuffMax is synonymous with versatility. The BuffMax’s tank comes with a 10-year warranty. Its mechanical parts come with a 2-year warranty.

Create your ideal BuffMax in just a few clicks and generate a unique code representing your personalized configuration. This code can then be submitted to our sales team via an online form, allowing us to assess your needs and provide you with a tailored solution.
Simplify your purchasing process and ensure you get the BuffMax perfectly suited to your system.
For fast and cost-effective delivery.
STANDARD MODEL CODES
BuffMax 20 STD
BUFF20 - 1.25NPT - HRZ - HT
BuffMax 80 STD
BUFF80 - 2.5NPT - HRZ - HT
BuffMax 175A STD
BUFF175A - 3NPT - HRZ - HT
BuffMax 30 STD
BUFF30 - 1.5NPT - HRZ - HT
BuffMax 120 STD
BUFF120 - 3NPT - HRZ - HT
BuffMax 200A STD
BUFF200A - 3NPT - HRZ - HT
BuffMax 50 STD
BUFF50 - 2NPT - HRZ - HT
BuffMax 120A STD
BUFF120A - 3NPT - HRZ - HT
Build your BuffMax:
- 20 - 20 US gal.
- 30 - 30 US gal.
- 50 - 50 US gal.
- 80 - 80 US gal.
- 120 - 120 gal US gal.
- 120A - 120 US gal. ASME
- 175A - 175 US gal. ASME
- 200A - 200 US gal. ASME
1. Volume in US gallons
- 1.25NPT - 1.25’’ dia. MNPT thread1
- 1.5NPT - 1.5’’ dia. MNPT thread1
- 2NPT - 2’’ dia. MNPT thread
- 2.5NPT - 2.5’’ dia. MNPT thread
- 3NPT - 3’’ dia. MNPT thread
- 1.25FLG - Class 150 flanges for 1.25’’ dia. pipe1
- 1.5FLG - Class 150 flanges for 1.5’’ dia. pipe1
- 2FLG - Class 150 flanges for 2’’ dia. pipe
- 2.5FLG - Class 150 flanges for 2.5’’ dia. pipe
- 3FLG - Class 150 flanges for 3’’ dia. pipe
- 4FLG - Class 150 flanges for 4’’ dia. pipe
2. Diameter and type of connections
- HRZ - Horizontal connections
- VRT - Vertical connections1 2
3. Direction of connections
- HT - Heating water
- CW - Heating water and/or cooling water (Add elastomeric insulation to prevent condensation)
4. Application
- BXT- Addition of two connections positioned at the center of the tank.1
5. Addition of two connections
- 1.25NPT - 1.25’’ dia. MNPT thread
- 1.5NPT - 1.5’’ dia. MNPT thread
- 2NPT - 2’’ dia. MNPT thread
- 2.5NPT - 2.5’’ dia. MNPT thread
- 3NPT - 3’’ dia. MNPT thread
- 1.25FLG - Class 150 flanges for 1.25’’ dia. pipe
- 1.5FLG - Class 150 flanges for 1.5’’ dia. pipe
- 2FLG - Class 150 flanges for 2’’ dia. pipe
- 2.5FLG - Class 150 flanges for 2.5’’ dia. pipe
- 3FLG - Class 150 flanges for 3’’ dia. pipe
- 4FLG - Class 150 flanges for 4’’ dia. pipe
6. Diameter and type of BXT connections
- 1 Not available on ASME models
- 2 Limitation of diameters and type of connections
when in vertical position.
Available in vertical position : - •20, 30, 50 US gal. -- 1.25NPT.
- •80, 120 US gal. -- 1.5NPT or 2NPT