Overview
Stores hot or chilled water in heating and cooling systems to stop short cycling. The Buffer Tank is part of Pecol's Storage Water Heaters range (stainless steel tanks for heat pump & solar systems). Size range: 50 – 200 L.
All details on this page come from the Pecol stainless steel tank catalogue 2026. Download the Stainless steel tank catalogue 2026 (PDF) for drawings and installation notes.
Key features
Heating systems
Stores excess hot water from a boiler or heat pump to stop short cycling, which wastes energy and wears the equipment.
Cooling systems
Stores cold water for steady cooling when demand changes.
Duplex 2205 option
Duplex 2205 has far better pitting-corrosion resistance and strength than SUS304 or SUS316L, so tanks last longer.
100% leakage tested
Every tank is held at 0.8–1.0 MPa for 3 minutes with no bubbles or deformation.
Quality checked
Salt-spray corrosion tests, endoscope inspection after pickling and infrared imaging of the polyurethane foam.
Technical specifications
| Item | 50 L | 100 L | 150 L | 200 L |
|---|---|---|---|---|
| Inner diameter (mm) | Ø370 | Ø370 | Ø370 | Ø470 |
| Outer diameter (mm) | Ø470 | Ø470 | Ø470 | Ø560 |
| Insulation thickness (mm) | 50 | 50 | 50 | 45 |
| Height (mm) | 600 | 1045 | 1410 | 1312 |
| Inner tank material | Stainless steel 304, 316L or Duplex 2205 | |||
| Electric heater | 1.5 kW & 3 kW, 220–240 V 50 Hz 1-phase | |||
| Working pressure | 0.6 MPa | |||
| Testing pressure | 1.0 MPa | |||
| Casing | Painted galvanised steel / SUS304 | |||
| Connections | 1/2", 3/4", 1", 5/4", 6/4", 2" | |||
Specifications are from the manufacturer's brochure and may change without notice. Please confirm with our engineers before ordering.
Where it is used
- Air to water heat pump heating systems
- Chilled water and fan-coil systems
- Boiler systems
Buffer Tank price and quotation
Prices depend on the size, installation and site conditions, so we quote each project individually. Tell us how many people or rooms you need hot water for, and our engineers will recommend the right model and send you a free quotation.





