Specialists, not generalists
Cylinders, calorifiers and buffer vessels are what we do — it's our whole business. That focus means engineers who know hot water storage inside out, from a single domestic cylinder to a plant-room calorifier.
Hot water cylinders & calorifiers, built to order in Manchester
Business of the YearWinnerWorld HeatPride of Tameside Business Awards 2026
We are incredibly proud of every member of our team: each and every one of them deserves it for their hard work.
Made in Manchester- ISO 9001BSI certified
- WRASApproved cylinders
- G3Compliant, G3 kit supplied
- PEDDeclaration of Conformity held
- UKCAMarked
Not sure which cylinder you need?
Four quick questions about your home and we’ll recommend one cylinder from our range, with the reason why. Not sure of an answer? Skip it.
Know what you’re after? Compare every model or use our design tools.
Question 1 of 4
What kind of property is it?
- Since 1989
- Making cylinders (World Heat since 2008)
- Immediately
- for the standard range, 48 hours for bespoke, to confirm and respond to every enquiry
- Up to 10,000L
- Bespoke vessels built to order
- 2 factories
- Cylinders made in our own Dukinfield factories
Lead times
Lead times vary by product – call 0161 343 8610 for today’s lead time on your product.
0161 343 8610Why World Heat Cylinders
Britain’s specialist cylinder and calorifier manufacturer
Bespoke work, turned around fast
Bespoke sizes and specifications are our niche. Because we design and build everything in our own Dukinfield factories, with our own technical team, we control bespoke work from drawing to dispatch. Lead times vary by product – call 0161 343 8610 for today’s lead time on your product.
UK-made and dependable
Every vessel is designed, welded and tested in our own two factories in Dukinfield. Making cylinders since 1989 (World Heat since 2008), with a BSI-audited ISO 9001 quality system, WRAS-approved cylinders and a Declaration of Conformity held under the Pressure Equipment Regulations (PED) for the products they apply to.
For installers & heating engineers
Cylinders for installers
The sizes you fit every week — from stock or built to order, with the unvented kit included and a technical team that picks up the phone.
See how we helpFor M&E consultants & specifiers
For specifiers and consultants
Calorifiers, buffer vessels and cylinders designed to your duty and built to the standards you specify — with the drawings and documentation to back them up.
See how we helpFor merchants & stockists
For merchants and stockists
A UK-made cylinder range your branch can rely on — clear datasheets and a manufacturer’s technical team behind every sale.
See how we helpWhat we make
Cylinders, calorifiers and buffer vessels
From stock domestic cylinders to one-off commercial calorifiers, we make every vessel in our own two Dukinfield factories. Our domestic cylinders are made at World Heat 2.Our commercial and industrial vessels are made at World Heat 1.Domestic cylinders are made at World Heat 2, and commercial and industrial vessels at World Heat 1.
Insights
Latest insights
Technical advice, product developments, case studies and company news.
Company news
World Heat wins Business of the Year at the Pride of Tameside Business Awards
We are delighted to share that World Heat has won Business of the Year at the Pride of Tameside Business Awards, presented by Tameside Metropolitan Borough.
Read more
Technical advice
What makes a hot water cylinder right for a heat pump?
Not every hot water cylinder suits a heat pump. What to look for (coil size, coil pipe width and insulation) and what to ask your installer, in plain English.
Read more
Technical advice
Stratification in commercial thermal stores and buffer vessels
How diffusers, sparge pipes and baffle plates keep thermal stores and buffer vessels stratified, why CO₂ heat pumps need a cold return, and what CIBSE CP1 says.
Read more
Bespoke manufacturing
Made in our own factories in Dukinfield, backed by our own technical team
Every vessel is designed, welded and tested in our own factories in Dukinfield, Greater Manchester. You deal directly with our own technical team, from sizing and drawings to commissioning and aftercare, and because we design and build everything here in the UK, we control bespoke work from drawing to dispatch.
Our automated manufacturing processes and welding techniques let us build stainless steel and mild steel cylinders, calorifiers and buffer vessels up to 10,000 litres to your exact specification.
We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.
See inside
Take a virtual tour of our factory
Walk through our own manufacturing facility in Dukinfield, where every cylinder and calorifier is designed, welded and tested.
This loads TourMkr, which may set cookies. Open the tour in a new tab (opens in a new tab)
What the tour shows (text description)
The tour is an interactive 3D walk-through of our factory in Dukinfield, Greater Manchester, provided by TourMkr. You move from point to point through the manufacturing facility, where every cylinder and calorifier is designed, welded and tested: the welding and assembly areas, the machinery used to cut and form stainless steel, and finished vessels before dispatch.
You can see photographs of the same areas in the gallery on our About Us page, or read about our equipment on advanced manufacturing. If you’d like the tour described another way, see our accessibility statement.
Get in touch
Request a quote
Whether you need a cylinder from stock or one built to order, send us a quick enquiry or answer a few questions below. We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.Answer a few quick questions about the job below. We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.Whether you need a cylinder from stock or a bespoke vessel built to order, answer a few quick questions and our team will review your enquiry. We confirm and respond to every bespoke enquiry within 48 hours, and standard range enquiries immediately. If you need a price on a standard product, don’t hesitate to call and speak to one of our team on 0161 343 8610.
Certified & recognised
Step 1 of 5
Bespoke enquiries answered within 48 hours, standard range immediatelyBespoke enquiries answered within 48 hours, standard range immediatelyBespoke enquiries answered within 48 hours, standard range immediately
What’s the vessel for?
- Domestic hot water cylinder
- Commercial hot water / storage calorifier
- Heat pump or renewable system
- Buffer vessel or thermal store
- Process or industrial
- Replacing an existing vessel
- Something else
Next: domestic or commercial, who you are, a few questions that suit you, and your details — five quick steps.