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Aquinox Heat Pump Buffer Vessel
Heat Pump Buffer Vessels
The Aquinox® Heat Pump Buffer Vessel is utilised to add volume to your existing heating system; heat pumps require a minimum system volume to function efficiently. Adding a Heat Pump Buffer Vessel ensures a consistent flow rate and system volume are maintained. A heat pump will keep emitting heat even with no demand, and an Aquinox Buffer Vessel will facilitate the storage of this excess heat for later use.
We manufacture our buffers from Duplex Stainless Steel for its corrosion resistance.
As the buffer vessel will contain warm water, it will prevent the heat pump from going into defrost mode during cold temperatures as warm water will remain cycling.
If you’re not sure whether your heating system requires a buffer tank (as not all do), or what size vessel would be necessary, we would suggest consulting your heat pump installer and/or supplier for advice.
Having a Buffer Vessel reduces the risk of short cycling, leading to inefficiencies and even damage to the heat pump system, leading to a longer lifespan for the system and the heat pump unit itself.
Our buffer vessels range from 15 Litres to 100 Litres covering most requirements for the heat pump market.
If you require a larger buffer vessel – you can view our range here or get in touch.
Our service doesn’t include recommending the correct product designs for our customers’ jobs, so the effectiveness of their use within a system should, therefore, be determined by a competent installer.
Example Specification
- Working Pressure – 4.0 BAR
- Test Pressure- 6.0 BAR
- Operating Temperature – -5°C to 95°C
- 4 x 1″ Female Connections
- 1/2″ Auto Air Valve
- 1/2″ Thermostat Pocket Connection
- Includes Wall or Floor Mounting Brackets
- 5 Years Warranty
| Size | Armaflex | Steel Case | Volume |
|---|---|---|---|
| 300x184mm | 320x205mm | 320x210mm | 8 Litre |
| 450x184mm | 470x205mm | 470x210mm | 12 Litre |
| 480x200mm | 500x220mm | 510x260mm | 15 Litre |
| 800x200mm | 820x220mm | 830x260mm | 25 Litre |
| 820x250mm | 840x270mm | 845x295mm | 40 Litre |
| 975x250mm | 995x270mm | 1000x295mm | 48 Litre |
| 760x375mm | N/A | 820x450mm | 80 Litre |
| 950x375mm | N/A | 1010x450mm | 100 Litre |
Get In Touch
Our range of Heat Pump Buffers is made to order so can be manufactured to your unique requirements. If you are interested please get in touch below;
Frequently Asked Questions
What is a buffer vessel?
A buffer vessel is a key part of a heating system, storing heat from various sources like solar or solid fuel. It prevents system cycling, adds stability, and allows for controlled distribution of heat, even to systems that can’t usually handle certain sources. In short, it optimizes heating efficiency by storing, stabilizing, and controlling heat distribution.
Learn more about the purpose of a buffer vessel here.
What size buffer tank do I need?
It is strongly advised that you reach out to a knowledgeable heating engineer who can determine the size of the buffer tank you need.