What UK Cylinders does

UK Cylinders Limited is a UK-based manufacturer of unvented hot water storage cylinders and heat pump cylinders, operating from Ossett, West Yorkshire with three manufacturing facilities across Yorkshire. The company produces the Elite Cyl and FlowCyl ranges plus sub-variants (Slimline, Horizontal, AIR with internal expansion, Solar, Pre-Plumbed, Heat Pump, and the Solar PV Priority cylinder), all built around high-grade Duplex stainless steel construction and an in-house large-diameter corrugated primary coil optimised for heat pump heat exchange. Supporting products include multi-layered magnetic filters, P5/P6 controls with optional WiFi/App smart thermostats, and stainless steel buffer vessels, alongside a third-party design service via partner REDD.

The company is the self-described largest UK manufacturer of heat pump cylinders, holds ISO 9001 certification and WRAS approval, and offers a 25-year cylinder warranty supported by 2-year parts cover. Distribution is split between a nationwide merchant/stockist network with same-day despatch for orders placed before 12 midday, direct enterprise supply to social housing providers and housebuilders on a project basis, and an inside sales team reachable via phone and email.

Revenue is generated through one-time product sales across residential and commercial segments, with end-customers spanning social housing associations, enterprise housebuilders, plumbing and heating merchants, qualified installers, and community/public sector projects. Strategic positioning is anchored on universal compatibility across major heat pump brands (Samsung, Worcester Bosch), pre-plumbed factory assembly to reduce installer labour, and installer training-centre partnerships to build specification pull. Marketing is trade-focused via BIM content (BIMSTORE), PDF technical brochures, and project case studies rather than consumer campaigns.

Name

UK Cylinders

Legal name

UK Cylinders

Website

https://ukcylinders.co.uk

Company type

Private

Operating status

Operating

Headcount range

251–500 employees

Short description

UK Cylinders Limited manufactures unvented hot water cylinders and heat pump cylinders from three Yorkshire facilities, serving social housing providers, housebuilders, merchants, and installers across the UK with Elite Cyl and FlowCyl Duplex stainless steel ranges.

Ownership category

akta.pro rank

Product category

Hot Water Storage Cylinders

NAICS

Power Boiler and Heat Exchanger Manufacturing (33241), Metal Tank (Heavy Gauge) Manufacturing (33242), Pump and Compressor Manufacturing (33391)

SIC

Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC)

akta.pro secondary industry

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH)

Keywords

• Hot water cylinders
• Heat pump cylinders
• Unvented hot water storage
• Duplex stainless steel
• Pre-plumbed cylinders

Headquarters

HQ city

Ossett

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Hot Water Cylinder Sales: Revenue generated from the sale of physical hot water cylinder products across multiple product lines (Elite, Flow, Pre-Plumb, Heat Pump, Solar) and accessory products (buffer vessels, magnetic filters, controls). One-time product sales to merchants, installers, housebuilders, and social housing providers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

UK Cylinders manufactures unvented hot water storage cylinders and heat pump cylinders from Duplex stainless steel at three Yorkshire facilities. The product range spans Direct, Indirect, Solar, and Heat Pump configurations under the Elite Cyl (premium) and FlowCyl (standard) brands, with Slimline, Horizontal, and AIR variants. The company also supplies pre-plumbed factory-assembled cylinder packages, magnetic filters, controls, and a partner-provided design service to merchants, installers, housebuilders, and social housing providers across the UK.

Product overview

UK Cylinders is the UK's largest manufacturer of heat pump cylinders and a national supplier of unvented hot water solutions. The company operates two main product brands: Elite Cyl and FlowCyl, both featuring Duplex stainless steel construction with a 25-year warranty. The product portfolio includes standard, Slimline (475mm compact), and Horizontal variants across Direct, Indirect, Solar (single/twin coil), and Heat Pump configurations. Elite AIR models feature internal expansion vessels while standard models use external expansion. Pre-Plumbed packages (Direct and Indirect) come factory pre-plumbed and pre-wired with all components. Supporting products include Magnetic Filters for heat pump system protection, UKC P5/P6 Controls (with optional WIFI/APP smart thermostats), and a Design Service via partner REDD. Commercial sizes (400L, 500L, 600L) are now available ex-stock. The company operates three Yorkshire manufacturing facilities under ISO 9001 certification.

Differentiator

Problem solved

Functional benefit

Brands

• EliteCyl: Premium unvented cylinder range manufactured to highest quality standards, featuring Duplex stainless steel construction with 25-year warranty. Includes Direct, Indirect, Solar, Heat Pump, and Horizontal variants.
• FlowCyl
• NuCyl
• Prolite

Products and services

• Elite Cyl Premium unvented hot water cylinder range manufactured in the UK from high-grade Duplex stainless steel, featuring a 25-year cylinder warranty. Available in Direct, Indirect, Solar Single/Twin Coil variants, plus Slimline (475mm), Horizontal, AIR (internal expansion vessel), and Heat Pump configurations.
• FlowCyl Standard unvented cylinder range manufactured to high quality in the UK factory with Duplex stainless steel construction and a 25-year warranty. Available in Direct, Indirect, Solar, and Heat Pump variants across Standard, Slimline, Horizontal, and AIR (internal expansion vessel) configurations.
• Solar PV Priority Cylinder Specifically designed cylinder for PV systems with factory-mounted Solar iBoost+, programmable timed boost, wireless technology, and battery storage compatibility. Available in Direct, Indirect, and Heat Pump models with the 1st immersion heater relocated to the base to maximise water capacity for solar heating.
• Pre-Plumb Direct Factory pre-plumbed and pre-wired direct cylinder package including cold water inlet set, drain-off valve, 2 port zone valve, 3kW immersion heater, tundish and expansion vessel. Arrives ready to install to save on-site labour time.
• Pre-Plumb Indirect Factory pre-plumbed indirect cylinder with two port zone valve, T&P relief valve, circulating pump, auto bypass valve, wiring centre, dual thermostat, and filling loop. Configured for use with traditional boiler systems and ready to install.
• Magnetic Filter Multi-layered magnetic filter designed for heat pump systems featuring an 11,000-gauss rare earth neodymium magnet, 500ml filter pot, 300-micron filtration, multi-layered non-ferrous stainless steel gauze filters, and 360-degree rotatable pot. Captures magnetic and non-ferrous particulate to protect heat pump systems.
• UKC Controls (P5 and P6 Families) Combi control systems including the P5 family (LED display, 1-zone and 2-zone kits) and P6 family (clear digital display, 1-zone and 2-zone kits), with optional WiFi/APP programmable room thermostats. The click-on/off backplate allows upgrade from P5/P6 to smart WiFi version without disconnecting power or rewiring.
• Commercial Cylinders (400L, 500L, 600L) Larger capacity commercial cylinders (400, 500, and 600 litres) available ex-stock with delivery typically within 2–3 working days. Designed for commercial buildings, plant rooms, refurbishment projects, and larger domestic schemes, supporting both heat pump and traditional boiler systems.
• Design Service Plumbing, heating, and renewable energy design service for the new build housing sector, delivered in partnership with REDD (Renewable Energy Domestic Designs). Incorporates UK Cylinders products in system designs for domestic new build projects using gas, electric, or renewable energy options.

Quantifiable outcome

• Same-day despatch for stock items ordered before 12 midday
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature7 records

Partnerships

Seven partnerships are on record, tiered core, minor and flagship.

• KER Training LtdcoreGTM or Marketing Partner · 1 January 2026UK Cylinders heat pump cylinder installed and on display at KER Training Ltd in Coatbridge, near Glasgow — the main Worcester Bosch training centre in Scotland. UK Cylinders has been added to their 'Working in Partnership With' wall. Supports hands-on training for contractors using UK Cylinders cylinders with Worcester Bosch ASHP systems.
• Grant Store LtdcoreGTM or Marketing Partner · 1 January 2026UK Cylinders is supporting the newly launched Low Carbon Training Centre at Grant Store Ltd in Wigan. Four fully operational heat pumps are connected to a UK Cylinders Elite Heat Pump Buffer Combi Cylinder, providing hands-on training for engineers and apprentices in low-carbon heating technologies.
• REDD (Renewable Energy Domestic Designs)minorChannel Partner/ Reseller/ Distributor · 1 January 2026UK Cylinders references REDD as a partner providing free-of-charge heating and plumbing design services for the new build housing sector. REDD incorporates UK Cylinders products in their system designs for domestic new build projects using gas, electric, or renewable energy options.
• SamsungflagshipStrategic or Co-development Partner · 1 January 2025UK Cylinders and Samsung partnered on an affordable housing development in Dalquhurn, Renton, Scotland. Samsung air source heat pumps were paired with UK Cylinders pre-plumbed HG heat pump cylinders across 25 new homes. The £5.4m development was led by Cordale Housing Association with £2.6m Scottish Government funding.
• Worcester BoschcoreTechnology or Integration · 1 January 2025UK Cylinders supplies cylinders for training facilities and community projects alongside Worcester Bosch heat pumps. UK Cylinders' Elite and Flowcyl heat pump cylinders are installed at multiple Worcester Bosch training locations (Heat Pump Central Derby, KER Training Scotland) and in community heating upgrade projects (Milton Keynes Community Centre). Products are promoted as universally compatible with Worcester Bosch ASHP systems.
• Heat Pump CentralcoreGTM or Marketing Partner · 1 January 2025UK Cylinders Elite Pre-Plumbed Buffer Combo Cylinder installed alongside Worcester CS2000 Heat Pump at Heat Pump Central's training facility in Derby. Collaboration enables focused Worcester Bosch and UK Cylinders product training alongside BPEC heat pump courses.
• Improveasy GroupminorGTM or Marketing Partner · 1 January 2025Improveasy Group installed an Elite Pre-Plumbed Buffer Combi Cylinder from UK Cylinders in its new training room alongside a Worcester C2000 Air Source Heat Pump, creating a centre of excellence for renewable technologies for engineers and apprentices.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Oso Hotwater: Oso Hotwater is a UK manufacturer of unvented hot water cylinders and stainless steel thermal stores serving domestic and commercial customers. It competes head-to-head with UK Cylinders across merchant, installer and housebuilder channels.
• Joule UK: Joule UK manufactures unvented hot water cylinders and stainless steel cylinders for UK residential and commercial markets. It is a direct competitor to UK Cylinders in the same product category with overlapping customer segments (merchants, installers, housebuilders).
• Heatrae Sadia: Heatrae Sadia is a UK manufacturer of unvented hot water cylinders and combination tanks, now part of the Baxi Group. It is a direct competitor offering similar product lines and serving similar merchant and installer channels.
• Gledhill: Gledhill is a long-established UK manufacturer of hot water cylinders, thermal stores and boiling water taps. It is a direct cylinder-manufacturing peer with comparable product range and similar merchant distribution model.
• Telford Stainless Steel Cylinders: Telford is a UK-based manufacturer of stainless steel hot water cylinders, including vented, unvented and thermal store products. It is a direct peer to UK Cylinders in stainless steel cylinder manufacturing for the trade and social housing markets.

Broad incumbents

• Worcester Bosch: Worcester Bosch is a major UK heating OEM offering heat pumps, boilers and integrated hot water solutions. It is both a partner and competitor of UK Cylinders, with a much broader product portfolio and strong installer specification influence.
• Kingspan Water & Energy: Kingspan's Water & Energy division manufactures hot water cylinders, buffer tanks and thermal stores as part of a broader building envelope and energy portfolio. It is a broad incumbent serving overlapping residential and commercial specification channels.
• Baxi: Baxi is a major UK heating solutions provider offering boilers, heat pumps and hot water cylinders (including the Heatrae Sadia brand). It is a broad incumbent competing for the same installer and housebuilder specification slots.
• Ariston Group: Ariston is a global heating and hot water manufacturer with UK presence offering boilers, heat pumps and water heating products. It competes with UK Cylinders in integrated heating and hot water system proposals.
• Vaillant: Vaillant is a leading European heating OEM with a significant UK presence across heat pumps, boilers and hot water storage. It competes with UK Cylinders as part of broader integrated heating system offerings.

Market position

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/uk-cylinders-ltd

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about UK Cylinders