Joule Cyclone Plus Indirect Horizontal 120–300L Unvented Hot Water Cylinder

Joule Cyclone Plus Indirect Horizontal 120–300L Unvented Hot Water Cylinder

The Joule Cyclone Plus Indirect Horizontal Cylinder (available in 120L, 150L, 180L, 210L, 250L, and 300L sizes) sets a new standard for energy-efficient hot water storage in UK homes. Designed for horizontal installation—ideal for lofts, underfloor voids, or restricted plant rooms—this cylinder delivers high-flow, mains pressure hot water for single or multiple outlets using your boiler as the primary heat source.

Key Features:

• Horizontal design – supplied with pre-fitted cradles for quick and stable installation (removable for tight access points)
• Duplex stainless steel construction for long life, high durability, and resistance to corrosion
• Indirect coil in coil heat exchanger for rapid heat recovery and high performance with most boilers
• Mains pressure unvented system – provides powerful hot water flow throughout the property
• Comprehensive safety controls and fixing kit – includes controls from leading manufacturers
• 100% CFC/HCFC-free dense polyurethane foam insulation for low heat loss and energy savings (ODP 0, GWP 1)
• Contemporary white "white-goods" outer casing for premium appearance and easy cleaning
• Factory-fitted 3kW Incoloy immersion heater with integral thermostat (for backup or off-peak heating)

Technical Specifications (typical range):

• Capacities available: 120L, 150L, 180L, 210L, 250L, 300L
• Length (A): 900mm (120L), 1100mm (150L), 1280mm (180L), 1470mm (210L), 1720mm (250L), 1980mm (300L)
• Diameter (B): 545mm (all sizes)
• Empty Weight: ranges from approx. 30kg (120L) to 60kg (300L)
• Full Weight: approx. 150kg (120L) to 360kg (300L)
• Maximum working pressure: 3.5 bar (with supplied inlet controls)
• Primary coil rating: up to 98kW high-recovery capacity on larger cylinder sizes
• All plumbing connections are identified and accessible on the front for easier installation
• Inspection hatch (optional, typically for commercial/large capacities)

Other Details:

• Supplied with all essential safety components and high-efficiency insulation
• Cradles pre-fitted for support, removable for flexible access
• Suitable for all major boiler types, including heat pumps (check coil rating)
• Meets all current UK Building Regulations and WRAS approval

Why Choose the Cyclone Plus Indirect Horizontal Cylinder?

The Joule Cyclone Plus Indirect Horizontal Cylinder combines space-saving installation with mains pressure hot water delivery and proven energy efficiency. Engineered with top-grade stainless steel, innovative coil technology, and a complete safety kit, it’s the preferred solution for UK households upgrading to reliable, fast-recovery, low-maintenance hot water—even where space is at a premium.