Joule Invacyl Unvented 180L Indirect Cylinder Standard-TRBMVI-0180LFB
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Description
The Joule Invacyl 180L Indirect Standard Unvented Cylinder is designed to provide reliable mains-pressure hot water for 4–5 bedroom properties and households of up to 4–6 people. Heated through a high-efficiency 316L stainless steel smooth tube primary coil, it is suitable for connection to gas, oil, LPG and heat pump heating systems.
With an actual capacity of 175.9 litres, a standard 545mm body and a vertical configuration suited to conventional airing cupboard installations, the Invacyl provides a practical hot water storage solution for busy households. It features an LDX 2101 duplex stainless steel inner vessel, dense PU foam insulation, a factory-fitted 3kW immersion heater and Caleffi safety components.
Key Highlights
Applications & Suitability
- Suitable for 4–5 bedroom properties.
- Designed for households of approximately 4–6 people.
- Suitable for busy households with demand across multiple bathrooms.
- Compatible with gas, oil, LPG and heat pump heating systems.
- Requires connection to a boiler or heat pump for primary heating.
- Factory-fitted immersion heater provides backup and boost heating.
- Standard 545mm body suited to conventional airing cupboard installations.
Key Specifications
| Specification | Value |
|---|---|
| Capacity | 180 L |
| Actual Capacity | 175.9 L |
| Brand | INVACYL |
| ERP Type | IndirectUnvented |
| Item Category Code | Stainless |
| Product Group Code | INVACYL |
| Model | INDIRECT |
| Cylinder Material | LDX 2101 |
| Thermal Insulation | Dense PU Foam |
| Foam Thickness | 0 |
| Outer Casing | Coated Mild Steel |
| Unit Weight Empty | 42 kg |
| Unit Weight Full | 218 kg |
| No. of Immersions | 1 |
| Immersion Specification | 3kW @ 230V |
| Coil Material | 316L Stainless Steel |
| No. of Heat Exchangers | 1 |
| Coil 1 Rating | 11.54 kW |
| Coil 1 Surface Area | 0.67 m² |
| Coil 1 Max Primary Pressure | 6 bar |
| Coil 1 Resistance | 0.2 bar |
| Max Mains Water Pressure | 10 bar |
| Operating Pressure | 7 bar |
| Operating Temperature | 60°C |
| Safety Valve Temperature | 90°C |
| Heat Loss | 1.392 |
| Tested To Standard | BS EN 12897:2016 |
| Warranty Terms | 25 Years |
High-Efficiency Primary Coil
The Joule Invacyl 180L features a 316L stainless steel smooth tube primary coil designed for efficient heat transfer from the connected heating system. The supplied coil specification is 11.54kW with a 0.67 m² surface area, supporting primary heating and hot water recovery.
Compatible Heating Systems
This indirect unvented cylinder is designed for connection to a range of primary heating sources. It is supplied as factory pre-built for gas or oil boiler applications and is also specified as compatible with LPG and heat pump heating systems.
Duplex Stainless Steel Construction
The inner vessel uses LDX 2101 duplex stainless steel, while the outer casing is manufactured from coated mild steel. The cylinder also features dense PU foam thermal insulation to help reduce heat loss during hot water storage.
Backup Immersion Heater
A factory-fitted 3kW Incoloy immersion heater provides a backup and boost heating option. The specification lists one immersion heater rated at 3kW @ 230V, providing an alternative heating method when required.
Safety Components & Installation
The Invacyl 180L is supplied with Caleffi safety components, including a T&P relief valve and inlet control group. It also features a plastic T&P outer casing and colour-coded tapping collars. Screwed connections are supplied with compression fittings as standard.
Standard 545mm Body
The standard 545mm body is designed to suit conventional airing cupboard installations. This makes the Joule Invacyl 180L a practical choice where a standard cylinder footprint is required for a larger domestic hot water installation.
Certification & Warranty
The cylinder is specified as KIWA certified and tested to BS EN 12897:2016. It is supplied with 25-year warranty terms, providing long-term coverage for the cylinder installation subject to the applicable warranty conditions.
Ideal For
- 4–5 bedroom properties.
- Households of approximately 4–6 people.
- Busy homes with hot water demand across multiple bathrooms.
- Gas, oil and LPG boiler heating systems.
- Heat pump heating systems.
- Conventional airing cupboard installations requiring a standard 545mm body.
- Installations requiring an indirect unvented cylinder with backup immersion heating.
Frequently Asked Questions
The cylinder has a rated capacity of 180 litres and an actual capacity of 175.9 litres.
Yes. It is an indirect unvented hot water cylinder heated through its primary coil from a connected boiler or heat pump.
It is specified as compatible with gas, oil, LPG and heat pump heating systems.
Yes. It has 1 × 3kW Incoloy immersion heater, specified at 230V, for backup and boost heating.
The supplied specification gives a coil rating of 11.54kW and a coil surface area of 0.67 m².
The specified maximum mains water pressure is 10 bar, with an operating pressure of 7 bar.
The cylinder is specified as tested to BS EN 12897:2016 and is also stated as KIWA certified.
The supplied specification states 25-year warranty terms, subject to the applicable warranty conditions.
The Joule Invacyl 180L Indirect Standard Unvented Cylinder provides a high-capacity mains-pressure hot water solution for larger households. With 175.9-litre actual capacity, LDX 2101 duplex stainless steel construction, a 316L stainless steel 11.54kW primary coil, 3kW backup immersion heater and 25-year warranty terms, it is designed for 4–5 bedroom properties and a range of boiler and heat pump heating systems.
Order Now!
Upgrade your domestic hot water system with the Joule Invacyl 180L Indirect Standard Unvented Cylinder for reliable mains-pressure hot water performance.
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