Newark Copper Cylinder

What Newark Copper Cylinder does

Newark Copper Cylinder Company Limited, trading as Newark Cylinders, is a family-run UK manufacturer of hot water storage cylinders, buffer vessels, thermal stores, and calorifiers, operating from a single manufacturing facility in Newark, Nottinghamshire. Founded in 1977, the company specialises in both bespoke custom-built vessels (8 to 2,000 litre capacity range) and standardised product configurations, using copper and stainless steel materials with customisable coil configurations (1.1m² to 6.0m²) and flexible connection positioning. Its product portfolio spans unvented and vented cylinders, SlimFit compact cylinders, combination cylinders with integrated feed-and-expansion tanks, marine and industrial calorifiers, Aquinox Stainless-branded heat pump buffer vessels, and a co-developed Heat Geek product line (Super Cylinder, Mini Store, Nano Store) manufactured under an OEM arrangement with Heat Geek for the heat pump installer market.

The company holds ISO 9001:2015 (UKAS) and KIWA Water Regulation 4 certifications, which are gating requirements for UK water regulation compliance and trade specification. Revenue is generated through quote-based, one-time manufacturing sales to a trade-focused B2B customer base — primarily UK heating engineers, installers, and commercial/industrial buyers — via direct sales channels (website, phone, email) supported by a technical sales team that provides specifications and design drawings. Standard bespoke orders carry a 3-4 week lead time, and a 5-year manufacturer guarantee (7 years for Heat Geek products) is offered. The company has no external funding, operates only in the UK, and is family-owned with a small management team led by Technical Sales Manager Tom Sharpe.

Name

Newark Copper Cylinder

Legal name

Newark Copper Cylinder Company Limited

Website

https://newarkcylinders.co.uk

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

11–50 employees

Short description

Newark Copper Cylinder is a UK-based, family-run manufacturer (founded 1977) of bespoke and standard hot water cylinders, buffer vessels, thermal stores, and calorifiers (8–2,000 litres), serving heating engineers, installers, and commercial buyers with heat-pump-compatible products.

Ownership category

akta.pro rank

Product category

Hot Water Cylinder Manufacturing

NAICS

Metal Tank (Heavy Gauge) Manufacturing (33242)

SIC

Metal Shipping Barrels, Drums, Kegs & Pails (3412)

akta.pro primary industry

Gas Handling Equipment & Storage (Cylinders/Tanks/Valves) (IMAEACAL)

Keywords

• Hot water cylinders
• Bespoke cylinder manufacturing
• Thermal storage vessels
• Buffer vessels
• Heat pump cylinders

Headquarters

HQ city

Newark

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Infrastructure, Marketing or Sales, Technology or R&D

Revenue model

1. Bespoke Cylinder Manufacturing: Custom-built hot water cylinders manufactured to exact customer specifications. Products include unvented cylinders, vented cylinders, buffer vessels, thermal stores, header tanks, and marine/industrial calorifiers. Manufacturing lead time typically 3-4 weeks.
2. Heat Geek Branded Products: Manufacture of Heat Geek-designed products including Super Cylinder (V3.0) and Mini Store (v1.4) under OEM/partnership arrangement.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

Newark Copper Cylinder is a UK-based, family-run manufacturer of bespoke and standard hot water cylinders, buffer vessels, thermal stores, header tanks, and marine/industrial calorifiers in copper and stainless steel. The company produces custom-built solutions ranging from 8 to 2,000 litres with multiple coil configurations and connection placements, compatible with heat pumps, solar thermal, biomass, and traditional boilers. It also manufactures Heat Geek-branded high-efficiency cylinders under an OEM partnership.

Product overview

Newark Cylinders is a manufacturer of hot water storage solutions offering both bespoke custom-built and standardised product lines. The core product portfolio includes Unvented Cylinders (pressurised mains-fed systems), Vented Cylinders (gravity-fed with header tanks), SlimFit Cylinders (compact for tight spaces), Combination Cylinders (integrated F&E tanks), Marine Calorifiers, and Industrial Calorifiers. Supporting products include Buffer Vessels, Heat Pump Buffer Vessels, Pancake Buffer Vessels, Thermal Stores, and Header Tanks. The company also manufactures the Heat Geek sub-brand of high-efficiency cylinders (Super Cylinder, Mini Store, Nano Store) specifically designed for heat pump compatibility with large heat exchange surfaces. Bespoke manufacturing services allow custom dimensions from 8 to 2,000 litres, various materials (copper or stainless steel), multiple coil configurations, and specific connection placements. All products are compatible with heat pumps, solar thermal, biomass boilers, and traditional gas/oil boilers.

Differentiator

Problem solved

Functional benefit

Brands

• Aquinox Stainless: Stainless steel product brand including Aquinox Heat Pump Buffer Vessels and Aquinox Pancake Buffer Vessels.
• Heat Geek Super Cylinder
• Heat Geek Mini Store
• SlimFit Cylinders

Products and services

• Unvented Cylinders Pressurised hot water cylinders that connect directly to the mains water supply without requiring a separate cold water storage tank, delivering high water pressure throughout the property. Designed for heating engineers and installers working on UK residential and commercial systems.
• Vented Cylinders Traditional gravity-fed hot water cylinders connected to an external cold water storage tank (header/F&E tank), using gravity to supply water to the system. Sold to UK heating installers for residential and commercial vented heating systems.
• SlimFit Cylinders Compact hot water cylinder solutions designed for tight spaces and airing cupboards where standard-sized cylinders cannot fit. Targeted at installers handling space-constrained UK residential installations.
• Combination Cylinders Cylinders with integrated Feed & Expansion (F&E) tanks built immediately on top, combining cold water storage and hot water heating in one vessel for properties without loft space. For UK installers serving homes lacking separate header tank locations.
• Marine Calorifiers Hot water cylinders specifically designed and manufactured for marine applications, including ships, yachts, and offshore platforms. Supplied to marine engineers and shipbuilders.
• Industrial Calorifiers Large-capacity hot water cylinders designed for industrial and commercial applications with high hot water demand. Supplied to engineering firms and commercial facilities.
• Aquinox Heat Pump Buffer Vessels Buffer vessels specifically designed for heat pump systems, providing thermal storage to optimise heat pump efficiency and performance. Sold under the proprietary Aquinox Stainless brand to heating installers and heat-pump specialists.
• Buffer Vessels Storage vessels that buffer thermal energy in heating systems, helping to balance load and improve system efficiency. Supplied to heating engineers for residential and commercial systems.
• Aquinox Pancake Buffer Vessels Compact, short-format buffer vessels designed for installations with limited vertical space while maintaining thermal storage capacity. Sold under the Aquinox Stainless brand to installers handling tight-footprint projects.
• Thermal Stores Thermal energy storage units that manage multiple heat sources and provide controlled hot water delivery for heating systems. Supplied to installers handling multi-source heating installations.
• Header Tanks Cold water storage tanks including Feed & Expansion (F&E) tanks that supply water to vented cylinder systems. Supplied to heating installers for residential and commercial vented systems.
• Heat Geek Super Cylinder (HG Series) Ultra-high efficiency hot water cylinders designed by Heat Geek and manufactured by Newark Cylinders, featuring exceptionally large heat exchange surfaces (4.0m² to 6.0m²) for optimal heat pump performance. Available in capacities from 150L to 500L. Sold to heating installers and heat-pump specialists.
• Heat Geek Mini Store Compact thermal storage solution (approximately a quarter to third the size of conventional cylinders) designed for properties with limited space. Can fit in kitchen cabinets, under stairs, or small airing cupboards while providing flow rates for up to three showers simultaneously. Sold to installers serving space-constrained UK properties.
• Heat Geek Nano Store Smallest format in the Heat Geek product line, designed for very space-constrained installations requiring hot water storage for heat pump systems. Sold to heating installers via the Newark website.
• Bespoke Cylinder Solutions Custom manufacturing service producing cylinders, buffer vessels, and thermal stores to exact customer specifications including custom dimensions, materials (copper or stainless steel), coil configurations, connection positions, and pressure ratings from 8 to 2,000 litres. Targeted at heating engineers and commercial specifiers needing non-standard solutions.
• Standardised Cylinder Solutions Standard product configurations available from a predefined range, offering faster delivery times while maintaining quality manufacturing. Targeted at heating installers needing quicker turnaround on common specifications.

Quantifiable outcome

• 5-year manufacturer guarantee (7 years for Heat Geek products)
• +1 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core and minor.

• Heat GeekcoreStrategic or Co-development PartnerHeat Geek designs specialized heat pump cylinders (Super Cylinder, Mini Store, Nano Store) and Newark Cylinders manufactures these products. Newark also provides co-marketing and branding on Heat Geek product pages. Version 3.0 of Super Cylinder currently in development by Newark's Technical Sales Manager.
• Selby HeatingminorChannel Partner/ Reseller/ DistributorRegular customer and installer who specifies Newark bespoke cylinders for renewable heating projects including Tepeo ZEB installations.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Gledhill: UK-based manufacturer of hot water storage products including the well-known Megaflo unvented cylinder range. Directly comparable as a domestic-focused UK cylinder manufacturer with both standard and bespoke offerings.
• Heatrae Sadia: UK manufacturer of hot water cylinders and heating products, including unvented and heat pump-compatible ranges. Direct peer in UK cylinder manufacturing with broader commercial and domestic reach.
• OSO Hotwater: Norwegian hot water cylinder manufacturer with strong presence in the UK market through standard and bespoke cylinder offerings. Comparable as a European cylinder specialist serving similar trade and installer channels.
• Joule UK: UK manufacturer of stainless steel hot water cylinders including unvented, vented, and combination cylinders. Direct peer in cylinder manufacturing with comparable trade and custom build services.
• Kingspan Hot Water (Titan): Kingspan's hot water cylinder business (formerly Titan) produces unvented stainless steel cylinders for the UK market. Comparable as a UK stainless cylinder manufacturer with broader group backing and similar trade distribution.
• Santon: UK-based manufacturer of unvented hot water cylinders and immersion heaters with both standard and bespoke product lines. Direct peer in UK cylinder manufacturing targeting similar trade and installer customers.
• Telford Stainless Steel: UK hot water cylinder manufacturer producing stainless steel unvented and vented cylinders with custom build options. Closely comparable in product materials (stainless steel cylinders) and UK trade-focused distribution model.

Broad incumbents

• Vaillant: Major European heating equipment manufacturer offering boilers, heat pumps, and hot water cylinders (including through Gledhill/Megaflo). Comparable as an incumbent in the broader UK heating system market with overlapping cylinder product lines.
• Worcester Bosch: UK heating market leader in boilers and a significant player in hot water cylinders and heat pump systems. Comparable as a broad incumbent whose cylinder range overlaps with Newark's domestic and heat pump-ready products.
• Viessmann: Global heating, industrial, and refrigeration systems manufacturer with UK presence in boilers, heat pumps, and hot water storage. Comparable as a broad incumbent competing across multiple heating system categories including cylinders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

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• Facebookfacebook.com/newarkcoppercylinders
• LinkedInlinkedin.com/company/newark-cylinders
• Instagraminstagram.com/newarkcylinders
• TikToktiktok.com/@newarkcylinders

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Newark Copper Cylinder