Joule Cyclone Platinum 250L Twin Coil Solar Cylinder Standard C (TCEMVS-0250LFC) is a high-capacity indirect unvented hot water cylinder designed for residential and light-commercial installations. With a listed capacity of 250 litres and an actual capacity of 247 litres, it provides substantial hot water storage for properties with higher demand. Its twin heat-exchanger coils support integration with solar thermal systems and an auxiliary heating source, subject to system design and compatibility.
The cylinder features an LDX 2101 stainless-steel inner vessel, two 316L stainless-steel coils rated at 18kW and 22kW, and a coated mild-steel outer casing with dense PU foam insulation. Standing heat loss is specified as 2.30 kWh/24h, tested to BS EN 12897:2016. The cylinder includes one immersion heater port compatible with a 3kW, 230V immersion heater. A one-year warranty is listed, subject to the manufacturer's terms and conditions.
250L Capacity
Twin Coil Solar Cylinder
Indirect Unvented
Stainless-Steel Construction
At a Glance
Cylinder Type
Indirect Unvented
Standard C solar cylinder
Capacity
250 litres
Actual capacity: 247L
Heat Exchangers
Twin Coil
18kW + 22kW rated coils
Standing Heat Loss
2.30 kWh/24h
Tested to BS EN 12897:2016
About the Joule Cyclone Platinum 250L Twin Coil Solar Cylinder
The Joule Cyclone Platinum 250L Twin Coil Solar Cylinder Standard C is designed to store domestic hot water while allowing heat to be transferred from two separate primary heating circuits. Its twin-coil configuration makes it suitable for system designs that combine solar thermal heating with a secondary heat source, such as a compatible boiler. The precise arrangement depends on the property's heating system and the manufacturer's installation requirements.
The inner vessel is manufactured from LDX 2101 stainless steel, while both heat-exchanger coils are specified as 316L stainless steel. A coated mild-steel outer casing and dense PU foam insulation complete the cylinder's construction. With a listed capacity of 250 litres and a stated standing heat loss of 2.30 kWh/24h, it is designed for substantial hot water storage. A suitably qualified installer should confirm the cylinder's dimensions, access requirements, system compatibility and installation suitability before purchase.
Key Features
250-Litre Hot Water Storage
Provides a listed capacity of 250 litres and an actual capacity of 247 litres for properties requiring substantial stored hot water.
Twin Stainless-Steel Coils
Features two 316L stainless-steel heat exchangers rated at 18kW and 22kW, each with a specified surface area of 0.67m².
Solar and Auxiliary Heating Compatibility
The twin-coil design supports solar thermal and secondary heat-source integration where the overall system is correctly designed and compatible.
LDX 2101 Stainless-Steel Vessel
The inner cylinder is specified as LDX 2101 stainless steel, with a coated mild-steel outer casing.
PU Foam Thermal Insulation
Dense PU foam insulation helps limit standing heat loss, specified at 2.30 kWh/24h under BS EN 12897:2016 testing.
Immersion Heater Provision
Includes one immersion heater port specified for a 3kW immersion heater operating at 230V, subject to the installation requirements.
Important Installation Guidance:
Installation and commissioning must be carried out by a suitably qualified and competent installer in accordance with the manufacturer's instructions and applicable regulations. Confirm the cylinder's dimensions, access route, service clearances, electrical requirements, operating pressure, primary coil pressure limits and compatibility with the solar thermal and auxiliary heating systems before installation. The stated maximum mains water pressure is 10 bar, the operating pressure is 7 bar and the maximum primary pressure for each coil is 3.5 bar.
Key Specifications
| Product |
Joule Cyclone Platinum 250L Twin Coil Solar Cylinder Standard C |
| Model |
TCEMVS-0250LFC |
| Brand |
CYCLONE |
| Product Group Code |
SOLAR |
| Item Category Code |
Stainless |
| ERP Type |
IndirectUnvented |
| Cylinder Type |
Twin Coil Solar, Indirect Unvented |
| Listed Capacity |
250 litres |
| Actual Capacity |
247 litres |
| Cylinder Material |
LDX 2101 stainless steel |
| Outer Casing |
Coated mild steel |
| Thermal Insulation |
Dense PU foam |
| Foam Thickness |
Listed as 0 |
| Number of Heat Exchangers |
2 |
| Coil Material |
316L stainless steel |
| Coil 1 Rating |
18kW |
| Coil 2 Rating |
22kW |
| Coil 1 Surface Area |
0.67m² |
| Coil 2 Surface Area |
0.67m² |
| Coil 1 Maximum Primary Pressure |
3.5 bar |
| Coil 2 Maximum Primary Pressure |
3.5 bar |
| Coil 1 Resistance |
0.06 bar |
| Number of Immersions |
1 |
| Immersion Heater Specification |
3kW at 230V |
| Maximum Mains Water Pressure |
10 bar |
| Operating Pressure |
7 bar |
| Operating Temperature |
60°C |
| Safety Valve Temperature |
90°C |
| Empty Weight |
59kg |
| Full Weight |
307kg |
| Standing Heat Loss |
2.30 kWh/24h |
| Test Standard |
BS EN 12897:2016 |
| Warranty |
1 year, subject to manufacturer's terms and conditions |
Who Is This Cylinder For?
The Joule Cyclone Platinum 250L Twin Coil Solar Cylinder Standard C is suitable for larger family homes, properties with higher hot water demand and light-commercial installations requiring substantial stored hot water. Its twin-coil configuration can support solar thermal heating alongside a compatible auxiliary heat source, making it an option for suitable new-build and renovation projects. Confirm the property's hot water requirements, available installation space, heat-source compatibility and electrical provision with a qualified installer.
Frequently Asked Questions
What is the capacity of the Joule Cyclone Platinum 250L cylinder?
The listed capacity is 250 litres, while the stated actual capacity is 247 litres.
What is a twin-coil solar cylinder?
A twin-coil cylinder contains two separate heat exchangers that transfer heat from primary heating circuits into the stored domestic hot water. This configuration can support solar thermal heating and a compatible secondary heat source, depending on the system design.
What are the ratings of the two coils?
The supplied specification lists the first coil at 18kW and the second at 22kW. Each coil has a stated surface area of 0.67m² and a maximum primary pressure of 3.5 bar.
Can an immersion heater be used with this cylinder?
Yes. The supplied specification lists one immersion heater port compatible with a 3kW immersion heater at 230V. Confirm the correct immersion heater and electrical installation requirements before use.
What is the stated standing heat loss?
The stated standing heat loss is 2.30 kWh/24h, tested to BS EN 12897:2016.
High-Capacity Twin Coil Solar Hot Water Storage
The Joule Cyclone Platinum 250L Twin Coil Solar Cylinder Standard C combines substantial hot water storage, two stainless-steel heat exchangers and an LDX 2101 stainless-steel inner vessel. Designed for compatible solar thermal and auxiliary heating systems, it offers a practical option for larger homes and light-commercial applications. Confirm the installation requirements, system compatibility and warranty terms before ordering.
