The Joule Invacyl Unvented 250L Direct Cylinder Standard (TRBMVD-0250LFC) is designed to store hot water for larger homes and other installations with substantial demand. This direct unvented cylinder heats water using electric immersion heaters and supplies hot water at mains pressure, subject to the property’s water supply and system configuration. Its 250-litre capacity and two immersion positions offer a high-volume storage option for suitable installations.
The cylinder is specified with LDX 2101 stainless-steel construction, dense PU foam insulation and a coated mild-steel outer casing. The supplied specifications state a 50mm insulation thickness, a heat loss of 1.92kWh per 24 hours and a 25-year warranty. Check the current manufacturer’s documentation and warranty terms, along with the installation dimensions and access route, before purchase.
250L Capacity
Direct Unvented Cylinder
LDX 2101 Stainless Steel
2 Immersion Positions
At a Glance
Cylinder Type
Direct Unvented
Joule Invacyl Standard
Actual Capacity
250 litres
Model code: TRBMVD-0250LFC
Immersion Positions
2
3kW at 230V, as specified
Insulation
50mm PU Foam
Dense foam insulation, as specified
Key Features
250-Litre Hot Water Storage
Provides a large stored-water capacity for properties with higher hot-water demand. Have the required cylinder size assessed against household usage, occupancy and the number of outlets.
Direct Electric Heating
This direct cylinder heats stored water using electric immersion heaters rather than a boiler heating an internal coil. Confirm the electrical supply and heating arrangement are suitable for your installation.
Two Immersion Positions
The supplied specification lists two immersion positions, with a 3kW rating at 230V. Confirm the supplied immersion heaters and electrical requirements with the seller and installer before ordering.
LDX 2101 Stainless-Steel Cylinder
The product specification identifies LDX 2101 stainless steel for the cylinder body. Retailer listings also describe the Invacyl range as duplex stainless steel; check the manufacturer’s current product documentation for material details.
Dense PU Foam Insulation
The listed 50mm dense polyurethane foam insulation is intended to help limit heat loss from stored water. The supplied specification gives a heat-loss figure of 1.92kWh per 24 hours.
Unvented Mains-Pressure System
Designed for an unvented system connected to the mains water supply. Confirm the available supply, operating conditions and required safety components with a suitably qualified installer.
Important Installation Guidance:
This is an unvented hot-water cylinder. Installation and commissioning should be carried out by a suitably qualified installer in accordance with the manufacturer’s instructions and applicable regulations. Have the installer confirm the system design, available space, electrical requirements, operating pressures, safety components and connections.
Key Specifications
| Product |
Joule Invacyl Unvented 250L Direct Cylinder Standard |
| Model Number |
TRBMVD-0250LFC |
| Range |
Invacyl |
| Actual Capacity |
250 litres |
| Unit Weight Empty |
46kg, as supplied |
| Unit Weight Full |
296kg, as supplied |
| Cylinder Material |
LDX 2101 stainless steel |
| Outer Casing |
Coated mild steel |
| Thermal Insulation |
Dense PU foam |
| Foam Thickness |
50mm |
| Heating Type |
Direct |
| Number of Immersion Positions |
2 |
| Immersion Specification |
3kW at 230V |
| Heat Loss |
1.92kWh/24h, as supplied |
| Maximum Mains Water Pressure |
10 bar, as supplied |
| Operating Pressure |
7 bar, as supplied |
| Safety Temperature |
90°C |
| Tested Standard |
BS EN 50440:2015, as supplied |
| Warranty |
25 years, as supplied; confirm terms and conditions with the seller |
Frequently Asked Questions
Is the Joule Invacyl 250L a direct cylinder?
Yes. The TRBMVD-0250LFC is listed as a direct unvented cylinder, designed to heat stored water using electric immersion elements.
How many immersion heaters does it have?
The product information lists two immersion positions and 3kW at 230V. Confirm whether both immersion heaters are included in the package supplied by your seller.
What is the warranty period?
The supplied product details state a 25-year warranty. Check the current manufacturer’s warranty documentation for coverage, registration requirements and any servicing conditions before purchase.
The Joule Invacyl 250L Direct Cylinder offers large-capacity, electrically heated hot-water storage for a suitable unvented system. Confirm the specifications, installation requirements and warranty terms with the seller and installer before ordering.
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