The Joule Cyclone Air 125L Indirect Standard Unvented Cylinder (TCEMVA-0125LFB) is a compact, high-quality domestic hot water cylinder designed for dependable mains-pressure hot water storage. As part of the Joule Cyclone Air range, it features an internal expansion vessel, providing a neat all-in-one cylinder installation that is popular with both installers and customers.

This indirect unvented hot water cylinder heats stored water through a 316L stainless steel internal coil connected to a boiler, while a 3kW @ 230V immersion heater provides additional heating flexibility. The cylinder uses an LDX 2101 stainless steel body with a coated mild steel outer casing and is designed around a 124-litre actual capacity, making it a practical option where dependable domestic hot water storage is required.

Key Highlights

Applications & Suitability

 
• Suitable for domestic hot water storage applications.
 
• Designed as an indirect unvented hot water cylinder.
 
• Heats stored water through the internal 316L stainless steel coil connected to a boiler.
 
• Includes a 3kW @ 230V immersion heater for additional heating flexibility.
 
• The internal expansion vessel provides a neat all-in-one cylinder installation.
 
• Compact 124-litre actual capacity with a 540mm diameter and 1030mm height.

Key Specifications

Joule Cyclone Air Internal Expansion Vessel

The Joule Cyclone Air range incorporates an internal expansion vessel within the cylinder design. This creates a neat, integrated installation by bringing the expansion provision into the cylinder rather than requiring a separate external expansion vessel arrangement.

The all-in-one design is particularly suited to installations where a tidy cylinder setup is desirable. The internal expansion vessel forms part of the Cyclone Air configuration while the cylinder provides mains-pressure domestic hot water storage.

Indirect Heating with 316L Stainless Steel Coil

The internal coil is designed to connect to the boiler primary circuit, allowing the cylinder's stored water to be heated indirectly through the coil.

3kW Immersion Heater Support

For additional heating flexibility, the cylinder includes one 3kW immersion heater rated at 230V. This provides an electric heating option alongside the indirect coil arrangement.

LDX 2101 Stainless Steel Cylinder Construction

The cylinder body is manufactured from LDX 2101 stainless steel, with a coated mild steel outer casing. This construction provides the core cylinder structure and a finished external casing for the unit.

The supplied specifications also list dense thermal insulation as part of the cylinder construction, with the foam thickness field specified as 0. This value has been retained exactly as provided in the product specification.

Compact 124L Cylinder Format

With an actual capacity of 124 litres, the TCEMVA-0125LFB provides a compact domestic hot water storage option. The cylinder measures 1030mm in height and 540mm in diameter, with an empty weight of 35kg and a full weight of 158kg.

Pressure & Operating Parameters

The Joule Cyclone Air 125L cylinder is specified for a maximum mains water pressure of 10 bar and an operating pressure of 7 bar. The listed operating temperature is 60°C, while the safety temperature valve specification is 95°C.

For the primary heating circuit, the internal coil has a specified maximum primary pressure of 3.5 bar and a coil resistance of 0.05 bar.

Ideal For

• Domestic hot water storage installations
• Indirect unvented hot water cylinder applications
• Installations requiring boiler-fed cylinder heating
• Projects where an internal expansion vessel provides a neat all-in-one installation
• Installations requiring additional electric immersion heating support
• Applications requiring a compact 124L actual-capacity cylinder

Frequently Asked Questions