The Joule Cyclone Air 300L Direct Standard C Cylinder is a high-capacity hot water cylinder designed for reliable domestic hot water storage with direct heating and electric immersion backup. Part of the Joule Cyclone Air range, it features an internal expansion vessel similar to the Megaflo-style design, providing a neat, all-in-one cylinder installation that is popular with customers and installers. A pre-plumbed cold feed assembly is also included to help simplify installation. With a 300 litre capacity class, 294 litre actual capacity, two immersion heaters and a 95°C safety temperature, this cylinder is designed to provide dependable hot water storage and heating support.
300 Litre Capacity Direct Standard Joule Cyclone Air Internal Expansion Vessel
294L
Actual capacity
2
Immersion heaters
3kW
Immersion specification
95°C
Safety temperature
Applications & suitability
High-Capacity Hot Water
The 300 litre capacity class and 294 litre actual capacity provide substantial hot water storage for suitable installations.
Direct Heating Systems
Designed as a direct standard cylinder with electric immersion heating support.
All-in-One Installation
The internal expansion vessel provides an integrated cylinder arrangement for a neat installation.
Installer-Friendly Setup
The pre-plumbed cold feed assembly is included to help make installation easier.
Key specifications
| Specification |
Value |
| Product |
Joule Cylinder 300L Cyclone Air Direct Standard C |
| Range |
Joule Cyclone Air |
| Expansion Vessel |
Internal (Megaflo-style) |
| Capacity |
300 L |
| Model |
DIRECT |
| Actual capacity |
294 L |
| Unit weight empty |
55 kg |
| Unit weight full |
355 kg |
| Number of immersions |
2 |
| Immersion specification |
3 kW @ 230V |
| Safety temperature |
95 °C |
Installation & compatibility
Direct heating with integrated expansion: The Joule Cyclone Air 300L is a direct standard cylinder with two immersion heaters specified at 3kW @ 230V. Its internal expansion vessel provides an integrated, all-in-one cylinder installation, while the pre-plumbed cold feed assembly is included to help simplify installation.
Design & performance benefits
Internal Expansion Vessel
The internal expansion vessel creates a neat, all-in-one cylinder arrangement without relying on a separate external expansion vessel.
300L Capacity Class
The cylinder has a 300 litre capacity class with a specified actual capacity of 294 litres.
Dual Immersion Support
Two immersion heaters are provided, with each immersion specified at 3kW @ 230V.
95°C Safety Temperature
The specified safety temperature is 95°C for the cylinder's heating arrangement.
Additional installation features
Pre-Plumbed Cold Feed
Includes a pre-plumbed cold feed assembly to help make the cylinder installation easier.
Integrated Expansion
The internal expansion vessel is designed as part of the cylinder for a neat all-in-one installation.
Substantial Storage
The 294 litre actual capacity and 355 kg full weight reflect the cylinder's high-capacity storage format.
Ideal for
The Joule Cyclone Air 300L Direct Standard C Cylinder is ideal for installations requiring high-capacity direct hot water storage with an integrated expansion vessel and electric immersion heating. With a 294 litre actual capacity, two 3kW @ 230V immersion heaters, internal expansion vessel and pre-plumbed cold feed assembly, it provides a practical all-in-one cylinder solution. The cylinder has a specified 95°C safety temperature and is designed for customers and installers looking for reliable performance and a neat installation within the Joule Cyclone Air range.
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