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World Heat Cylinders · 0161 343 8610 · sales@whcylinders.co.uk
Commercial · Storage calorifier
Storage Calorifiers/Cylinders
Bespoke storage calorifiers from 100 to 10,000 litres, vertical or horizontal, in stainless or galvanised mild steel — heated by LTHW, MTHW, HTHW or steam.
- 100–10,000 L standard sizes
- Vertical or horizontal
- Stainless or galvanised mild steel
- LTHW, MTHW, HTHW or steam primary
- Built to BS 853
Lead time
Call us for today’s lead time on 0161 343 8610.
Specifications Datasheets & downloads
Made in Manchester- ISO 9001
- PED
- UKCA
Technical data
Specifications
Storage calorifier dimensions, 100L to 10,000L (vertical or horizontal)
| Capacity (litres) | 440 | 550 | 700 | 800 | 900 | 1000 | 1200 | 1350 | 1500 | 1800 | 2000 | 2300 | 2500 | 3000 | 3500 | 4000 | 4500 | 5000 | 6000 | 7000 | 8000 | 9000 | 10000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Height / length (mm) | 1800 | 1700 | 1750 | 1950 | 2000 | 1950 | 2100 | 2350 | 1950 | 2300 | 2500 | 2400 | 2450 | 2900 | 2700 | 3050 | 3400 | 3200 | 3800 | 3300 | 3700 | 4200 | 4600 |
| Diameter (mm) | 600 | 675 | 750 | 750 | 800 | 850 | 900 | 900 | 1050 | 1050 | 1050 | 1150 | 1200 | 1200 | 1350 | 1350 | 1350 | 1450 | 1450 | 1680 | 1680 | 1680 | 1680 |
Figures are from our current product data; each range’s product information sheet is linked under its table. Connection positions are confirmed on the drawing for each order. Other sizes and configurations are built to order.
Every calorifier is built to order with a fully detailed drawing, so the sizes above are a guide. Send us the capacity, recovery and primary heat source and we’ll size it.
Send us your requirementsDocuments
Datasheets & downloads
Installation & service manuals
Certificates
Brochures
Can’t find a document? Search the downloads library, browse all product datasheets and manuals, or email sales@whcylinders.co.uk.
In detail
About Storage Calorifiers/Cylinders
Storage Calorifiers
Understanding Storage Calorifiers for Commercial & Industrial Hot Water
World Heat Cylinders manufacture bespoke storage calorifiers in Manchester. Specifically, these are designed to provide reliable and efficient bulk hot water generation for a wide range of commercial and industrial applications. Furthermore, our expertly coded fabricators and skilled welders manufacture high-quality storage calorifiers. These can be stainless steel storage calorifiers or galvanised mild steel options, suitable for both vented and unvented hot water systems.
Key Features & Customisation Options
Versatile Internal Heaters & Heat Sources:
Our hot water storage calorifiers can feature a diverse range of internal heating elements to suit your primary energy source. For example, options include:
- Basic plain tube coils, which are ideal for straightforward applications.
- High-efficiency integron (finned tube) removable heating batteries. Importantly, these allow for quick and easy maintenance or replacement, thereby minimising system downtime.
Additionally, these internal heaters can be energised by various primary heat sources, such as:
- Steam (e.g., from industrial steam boilers).
- High-Temperature Hot Water (HTHW).
- Medium-Temperature Hot Water (MTHW).
- Low-Temperature Hot Water (LTHW) from gas or oil boilers.
- Modern, innovative technologies, including air source heat pumps and ground source heat pumps.
Moreover, we offer the flexibility to incorporate additional heat sources. For instance, connections for solar thermal panels can be added to create highly efficient, multi-energy hot water systems.
Bespoke Manufacturing to Your Specifications:
All our hot water storage calorifiers are manufactured on a bespoke basis. Consequently, this means each unit is specifically engineered to meet our customers' precise project specifications and application requirements. Indeed, we can tailor:
- Capacity and dimensions.
- Material of construction.
- Coil size and configuration.
- Connection sizes and positions.
- Operating pressures and temperatures.
Safety & Maintenance Features:
- Inspection Openings (Manholes): These facilitate essential internal viewing and cleaning, the routine inspection and cleaning that a risk-assessed Legionella control regime may call for. These openings are available in standard sizes of 250mm, 350mm, and 450mm, or custom sizes if required.
- De-stratification Pump Sets: Optional pre-plumbed de-stratification pump sets are also available. Specifically, these pumps circulate the stored water within the calorifier. This ensures even temperature distribution, eliminates cold spots, and prevents water stagnation, which is another crucial safety feature for legionella control.
High-Quality Insulation:
Our dedicated factory insulation line can pre-insulate any storage calorifier before dispatch. To achieve this, we utilise high-density, highly efficient polyurethane (PU) injection insulation. This method effectively minimises heat loss and maximises energy efficiency, ultimately reducing operational costs.
Compliance & Engineering Expertise
World Heat Cylinders manufactures its calorifiers and storage cylinders to meet stringent industry standards. Where necessary, they comply with BS853 (Specification for vessels for use in heating systems). Additionally, they are designed and built in accordance with the Pressure Equipment Directive (PED) 2014/68/EU (formerly 97/23/EC).
Our expert design engineers will collaborate with you to specify and supply the correct components. This includes unvented kits if required, ensuring they perfectly suit your storage calorifier and its intended application. Indeed, we pride ourselves on providing comprehensive technical support throughout your project, which includes assistance with calorifier sizing.
Sizing a Storage Calorifier
Correctly sizing the volume of a storage calorifier is extremely important, to make sure enough hot water is available for the building’s needs. A combination of volume and heating duty for a one-hour delivery is considered adequate for most applications.
If there isn’t room to store an hour’s worth of hot water, the primary heating output should be increased to compensate. It is also worth splitting the required volume between more than one calorifier, so one can be shut down for service and maintenance while the others still supply hot water to the building.
Some applications, such as sports changing rooms, have no draw-off for long periods and then a large demand for a short time. There the volume should be sized to supply the full demand, with the heating coil sized for a longer recovery period.
Contact Us for Your Storage Calorifier Needs
For expert advice, a detailed quotation, or to discuss your specific storage calorifier requirements, please feel free to email our specialist team. Alternatively, you can call us on 0161 343 8610. We are certainly here to assist with any questions you may have.
You are also welcome to view examples of the commercial storage calorifiers we have produced in our gallery.
Help choosing and specifying
Guides and tools
- Hot water storage sizing calculatorStorage volume and reheat time, homes and commercial
- Legionella and safe hot water storageHSE L8 and HSG274 temperatures for stored hot water
- Thermal store and buffer vessel stratificationDiffusers, baffles and keeping the layers apart
- Insulation savings calculatorWhat a better insulated commercial cylinder saves a year
Explore the range
Related products
Need this tailored to your project or system?
Different connections, coil, size, controls or finish: our design team builds to your requirements.
We also build own-brand ranges for OEM partners.
Need a cylinder built to your specification?
From 10 litres to 10,000 litres, our Manchester team designs, manufactures and tests every vessel in-house. We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.









