Joule Cyclone Slimline Indirect Unvented 170L Cylinder (TCEMVI-0170SFC) is a compact hot-water cylinder designed for installations where a reduced-diameter unit can help make better use of floor space. It has a nominal capacity of 170 litres and a stated actual capacity of 168 litres, with an indirect coil for transferring heat from a compatible primary heating system.
The supplied product information lists an LDX 2101 stainless-steel cylinder, a 316L stainless-steel coil, dense PU foam insulation and heat loss of 1.90 kWh/24h. It also lists a 3 kW immersion provision and testing to BS EN 12897:2016. Check the current manufacturer’s datasheet and installation instructions to confirm dimensions, system compatibility, safety-valve settings and warranty terms before purchase or installation.
170L Nominal Capacity
168L Actual Capacity
Indirect Unvented
Slimline Design
At a Glance
Nominal Capacity
170 Litres
168L actual capacity listed
Cylinder Type
Indirect
Unvented hot-water storage
Coil Rating
19.31 kW
0.56m² coil surface area
Listed Warranty
1 Year
Confirm terms with supplier
Applications & Suitability
The cylinder is intended for domestic hot-water storage in homes where an indirect unvented unit is suitable and a slimline footprint is useful. The supplied information identifies boilers, heat pumps and solar thermal systems as possible primary heat sources; confirm compatibility, coil performance and system design with the manufacturer or system designer before specifying.
Important Unvented Cylinder Guidance:
Installation and commissioning must follow current manufacturer instructions and applicable requirements and be completed by a suitably qualified person. Confirm the required clearances, discharge arrangements, safety controls and maintenance requirements for the specific installation.
Key Features
Slimline Format
The reduced-diameter design is intended for locations where floor space is limited. Check the product dimensions and access route before ordering.
Stainless-Steel Cylinder
The supplied specification identifies LDX 2101 stainless steel for the cylinder and 316L stainless steel for the heat-exchanger coil.
Indirect Heating Coil
One 19.31 kW coil with a stated 0.56m² surface area transfers heat from a compatible primary heating circuit to the stored domestic hot water.
Immersion Provision
The supplied details list one 3 kW immersion at 230 V for auxiliary electric heating. Confirm whether the immersion is included and fitted as supplied.
Insulated Casing
Dense PU foam insulation is specified, with listed heat loss of 1.90 kWh/24h. Actual performance depends on the installation and operating conditions.
Unvented Operation
The specification lists a 10 bar maximum mains water pressure and 7 bar operating pressure. Installation must include the correct controls and safety provisions.
Ideal Use Cases
- Homes, flats or apartments needing a 170L nominal hot-water cylinder.
- Installations where a slimline cylinder may help make better use of available floor space.
- Indirect systems with a compatible boiler or other suitable primary heat source.
- Renovation and replacement projects requiring an unvented stainless-steel cylinder.
- Projects where the specified coil output, immersion provision and hot-water capacity suit the system design.
Key Specifications
| Product |
Joule Cyclone Slimline Indirect Unvented 170L Cylinder |
| Model / MPN |
TCEMVI-0170SFC |
| Brand / Range |
Joule / CYCLONE |
| Product Group |
Indirect Slim |
| Cylinder Type |
Indirect unvented |
| Nominal Capacity |
170 litres |
| Actual Capacity |
168 litres |
| Cylinder Material |
LDX 2101 stainless steel |
| Outer Casing |
Coated mild steel |
| Thermal Insulation |
Dense PU foam |
| Heat Loss |
1.90 kWh/24h, as supplied |
| Number of Immersions |
1 |
| Immersion Specification |
3 kW @ 230 V |
| Coil Material |
316L stainless steel |
| Number of Heat Exchangers |
1 |
| Coil Rating |
19.31 kW |
| Coil Surface Area |
0.56 m² |
| Maximum Primary Pressure |
3.5 bar |
| Coil Resistance |
0.05 bar |
| Maximum Mains Water Pressure |
10 bar |
| Operating Pressure |
7 bar |
| Operating Temperature |
60 °C |
| Safety Valve Temperature |
90 °C, as supplied |
| Weight Empty / Full |
44 kg / 212 kg |
| Test Standard |
BS EN 12897:2016, as supplied |
| Warranty |
1 year, subject to the manufacturer’s terms and conditions |
Installation & Use
1
Check space and access: Verify the cylinder’s dimensions, full operating weight, service clearances and route into the installation location.
2
Confirm system compatibility: Check that the primary heat source, coil rating, pressure limits and immersion provision match the system design and current product documentation.
3
Use a qualified installer: Install, commission and maintain the unvented cylinder in accordance with the manufacturer’s current instructions and applicable requirements.
Frequently Asked Questions
Is the cylinder 170 litres or 168 litres?
It is listed as a 170-litre nominal model with an actual capacity of 168 litres.
What does indirect unvented mean?
The stored domestic hot water is heated through a coil connected to a primary heating circuit. “Unvented” describes the cylinder’s pressurised cold-water supply arrangement; it requires the correct safety controls and installation.
Can it be used with a heat pump or solar thermal system?
The supplied description identifies heat pumps and solar thermal systems as possible heat sources, as well as boilers. Confirm the system’s design requirements and compatibility with the manufacturer before selecting the cylinder.
What is the listed heat loss?
The supplied specification lists heat loss of 1.90 kWh/24h.
What warranty is included?
The supplied product details list a 1-year warranty, subject to the manufacturer’s terms and conditions. Confirm the applicable warranty directly with the supplier before purchase.
A Compact 170L Indirect Unvented Cylinder
The Joule Cyclone Slimline TCEMVI-0170SFC offers a 170-litre nominal capacity, a stainless-steel heat-exchanger coil and a slimline format for suitable domestic installations. Confirm the current technical data, system compatibility, installation requirements and warranty terms before specifying.
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