Helios also offers high-quality water cylinders from World Heat, a trusted Manchester-based manufacturer known for its reliable and durable products. Made in the UK and equipped with Honeywell controls, these pre-plumbed cylinders are versatile solutions for various heating systems, including use alongside Power World heat pumps.
Designed with installers and wholesalers in mind, these cylinders simplify installation processes while ensuring efficient performance for domestic and small commercial applications.
These cylinders are dependable options for modern heating and hot water systems, and they complement our commitment to providing accessible and effective energy solutions.
Prices from £919.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
High-quality unvented mains pressure domestic hot water cylinders, manufactured in the UK from durable stainless steel. Designed for efficient heat pump integration, these cylinders are available in various capacities to suit different applications, providing reliable hot water solutions for homes and businesses.
Further details:
Manufactured in the UK
25-year warranty
WRAS approved
Energy efficiency: B to C (model dependent)
Insulation: Polyurethane (low GWP and zero ODP)
Includes 3kW immersion heater
Pre-plumbed models available
Prices from £1,137.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
A slimline unvented mains pressure domestic hot water cylinder, manufactured in the UK from high-quality stainless steel. Designed for compact spaces, these cylinders integrate seamlessly with heat pumps to deliver reliable and efficient hot water solutions.
Further details:
Manufactured in the UK
Slimline design for space-saving installations
25-year warranty
WRAS approved
Energy efficiency: Class C
Insulation: Polyurethane (low GWP and zero ODP)
Includes 3kW immersion heater
Pre-plumbed models available
Prices from £1,358.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
A combined unvented heat pump cylinder and buffer vessel in a single integrated unit. Manufactured in the UK from high-quality stainless steel, Climabuff cylinders deliver efficient and compact domestic hot water and heating solutions for a variety of applications.
Further details:
Manufactured in the UK
Integrated 50L buffer vessel (optional 100L available)
25-year warranty (subject to annual maintenance)
ISO9001 certified and WRAS approved
Energy efficiency: Class B to C (model dependent)
Insulation: Polyurethane (low GWP and zero ODP)
Includes 3kW immersion heater
Pre-plumbed models available
Prices from £1,524.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
A compact unvented heat pump cylinder and buffer vessel in one integrated unit. Manufactured in the UK from high-quality stainless steel, Climabuff Slimline cylinders are ideal for installations where space is limited, delivering efficient and reliable domestic hot water solutions. Available in 150L and 180L capacities.
Further details:
Manufactured in the UK
Slimline design with integrated 25L buffer vessel
25-year warranty (subject to annual maintenance)
ISO9001 certified and WRAS approved
Energy efficiency: Class C
Insulation: Polyurethane (low GWP and zero ODP)
Includes 3kW immersion heater
Pre-plumbed models available
Prices from £2,020.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
A high-performance, pre-plumbed air source heat pump cylinder with an integrated 50L buffer vessel. Designed for efficient domestic hot water applications, this cylinder is UK-manufactured from high-quality stainless steel, ensuring durability and reliability.
Further details:
Pre-plumbed for quick and straightforward installation
Integrated 50L buffer vessel to optimize heat pump performance
25-year warranty
Highly insulated (ERP Rated)
Full System Unvented Kits
WRAS Approved Product
ISO9001 Certified Quality Management
Prices from £2,127.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
A compact, slimline air source heat pump cylinder with an integrated 50L buffer vessel, pre-plumbed for maximum convenience. Ideal for installations with limited space, it offers efficiency, reliability, and a sleek design.
Further details:
Slimline design to fit space-constrained areas
Pre-plumbed with an integrated 50L buffer vessel for easy installation
25-year warranty
Manufactured from high-quality stainless steel
Full System Unvented Kits
ISO9001 certification
WRAS Approved Product
Prices from £448.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
A high-quality, super-insulated buffer vessel designed to optimize heating systems. Manufactured in the UK from durable stainless steel, it offers superior energy efficiency and robust performance for a wide range of applications.
Further details:
High quality stainless steel
Highly efficient polyurethane foam insulation
Easy lifting and positioning features
ISO9001 certified quality management
Bespoke fast turnaround vessels available
Primary expansion vessels available
Designed to withstand a maximum working pressure of 6 Bar
Prices from £278.00 Open a trade account for discounts. Further discounts available on bulk purchases.
Description:
The Inline Volumiser is a versatile solution designed to enhance the performance of air source heat pump systems. Manufactured in the UK from high-quality duplex stainless steel under an ISO9001-certified quality management system, it offers durability, energy efficiency, and reliable hot water capacity in compact and larger sizes.
Further details:
Available in 10L, 20L, 25L, and 50L capacities
Highly insulated with polyurethane injection insulation (35mm thickness)
ISO9001-certified and WRAS approved
Primary pipework connections: 28mm compression
Maximum flow rate: 60 litres per minute
Energy efficiency: ERP Rating A