Buffer Tanks and Calorifiers
Some commercial hot water systems may have variable heat load requirements and buffer tanks and calorifiers can help manage this efficiently. When the heating load is very low a buffer tank will store excess heated water, then when demand is higher the buffer tanks stored volume of hot water can be circulated through the system. This helps prevent boiler short-cycling while improving the life span of the boiler, reducing maintenance and saving energy and costs.
A calorifier is an indirect-fired water heater, meaning it does not contain a burner and relies on a boiler or other heat source to heat up the liquid in the heat exchanger coil which then heats up the water contained in the vessel.
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Heizer Stainless Steel Hot Water Cylinders
The Heizer buffer vessels are made of high quality stainless steel and are ideal for hot water systems that require particular high demands over a short period of time. Heizer calorifiers are designed for storage and production of hot water systems.
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ATX Buffer Vessel
- Cylinder: stainless steel AISI 316 L, internally and externally 100% pickled and passivated
- Working pressure: 6 bar
- Storage temperature: 95°C
- Welding process: PAW (Plasma Arc Welding) and TIG (Tungsten Inert Gas) welding process
Vertinox 1
- Capacity from 200 – 3,000 litres
- AISI 316 stainless steel
- Single fixed coil
- Insulation varies based on capacity
- Storage tank side: max temperature 99°C, max pressure 6 bar
- Primary circuit: max temperature 110°C, max pressure 12 bar
Vertinox 2
- Capacity from 200 – 3,000 litres
- AISI 316 stainless steel
- Double fixed coil
- Insulation varies based on capacity
- Storage tank side: max temperature 99°C, max pressure 6 bar
- Primary circuit: max temperature 110°C, max pressure 12 bar
FAQ
A calorifier is an indirect-fired water heater. Unlike a direct-fired heater, it does not contain its own burner. Instead, it relies on an external heat source, such as a boiler, to heat up a liquid which circulates through a heat exchanger coil inside the vessel. This coil then heats the water stored within the calorifier for use in a commercial hot water system.
Calorifiers are designed for the efficient storage and production of hot water, particularly in commercial systems with high or variable heat demands. They work in conjunction with the boiler to:
Prevent boiler short-cycling (where the boiler turns on and off too frequently).
Extend the lifespan of the boiler unit.
Reduce maintenance requirements.
Save energy and lower operating costs by managing the heating load more efficiently.
Tubman Heating supplies high-quality Heizer Stainless Steel Hot Water Cylinders and Calorifiers, which are ideal for systems that require particularly high volumes of hot water over short periods of time. We offer various models, including the Vertinox.
Sizing a calorifier is complex as it depends on factors like the system’s peak demand, the temperature rise required, and the heat source capacity. We recommend contacting the Tubman Heating sales team directly. Our specialists can discuss your specific requirements and ensure you select the correct unit for optimal system efficiency and performance.