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Insights

Technical advice, product developments, case studies and company news from World Heat.

Pride of Tameside Business Awards: World Heat, Business of the Year winner

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.

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Indirect Unvented Cylinder, photo 2

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.

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Cut-away of a World Heat buffer vessel, showing inside the vessel

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.

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World Heat stainless steel storage calorifier for commercial hot water

Technical advice

Legionella control and safe hot water storage

Legionella control for stored hot water: HSE L8 and HSG274 temperatures, dead legs, thermal disinfection, and how heat pump cylinders reach storage temperature.

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Live lead times now on our product pages

Company news

Live lead times now on our product pages

Our product pages now show live lead times for our standard domestic and pre-plumbed cylinders, updated throughout the day, so you can plan the job before you pick up the phone.

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Chat to our team live on the website

Company news

Chat to our team live on the website

You can now chat live with our technical sales team from any page on our website. Real people, the same team you'd speak to on the phone.

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Report a cylinder fault from your phone

Company news

Report a cylinder fault from your phone

If a World Heat cylinder has a problem you can now report it online, with photos, straight from your phone, so our technical team can work out the fix before we call you back.

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Register your cylinder warranty online, on site

Company news

Register your cylinder warranty online, on site

Our warranty registration form has been rebuilt so installers and homeowners can register a new World Heat cylinder from a phone in a couple of minutes.

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Add your own logo to our spec sheets

Company news

Add your own logo to our spec sheets

Installers and merchants can now download any World Heat spec sheet with their own company logo added, ready to send on to their customer.

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New tool: what would a new cylinder save?

Company news

New tool: what would a new cylinder save?

Our insulation savings calculator shows building managers and specifiers how much a World Heat foam-insulated cylinder could save each year compared with an existing commercial vessel.

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New tool: hot water storage sizing

Company news

New tool: hot water storage sizing

Our hot water storage sizing calculator works out storage volume and reheat time together, for homes and for commercial buildings, with the method and every assumption shown.

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New tool: find a replacement for an existing cylinder

Company news

New tool: find a replacement for an existing cylinder

Tell us about the cylinder that's there now and our replacement tool shows the World Heat cylinder to replace it with, and whether it's a straight swap.

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New tool: which cylinder for this heat pump?

Company news

New tool: which cylinder for this heat pump?

Our heat pump cylinder tool takes the home and the heat pump and shows the World Heat cylinder to fit it, a size either side, and whether the coil suits the heat pump.

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New tool: will it fit? Our cylinder space checker

Company news

New tool: will it fit? Our cylinder space checker

Measure the cupboard, answer two questions and our space checker shows every World Heat cylinder that fits, with the spare millimetres on each side.

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Introducing our pre-plumbed heat pump cylinder selector

Company news

Introducing our pre-plumbed heat pump cylinder selector

Start with the heat pump and our pre-plumbed selector points you to the World Heat pre-plumbed package that suits it, with the product information sheets and a quote request filled in.

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Every domestic cylinder in one table

Company news

Every domestic cylinder in one table

Our domestic cylinder quick reference puts every model's capacity, height, diameter and heat loss in one table that you can filter, print and share.

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Find the right cylinder in three questions

Company news

Find the right cylinder in three questions

Our new cylinder finder asks three simple questions, about the heat source, the size of the home and the space you have, and shows the World Heat domestic cylinders that suit.

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All our manuals and datasheets in one downloads library

Company news

All our manuals and datasheets in one downloads library

Our new downloads library has the installation and O&M manuals and datasheets for our cylinders, calorifiers and buffer vessels, by product, free to download with no login.

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Request a quote online in a few quick steps

Company news

Request a quote online in a few quick steps

Our new online quote form asks a few quick questions about the cylinder, calorifier or buffer vessel you need and sends them straight to our team at the factory.

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Indirect Unvented Cylinder, photo 2

Technical advice

Choosing the right domestic hot water cylinder

What to weigh up: household size, hot water demand, your heating system and the space available.

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SuperFlow Twin Coil, photo 2

Technical advice

The advantages of unvented hot water systems

Mains-pressure hot water to several outlets at once, with no cold water tank in the loft.

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Stainless Vented Indirect Cylinder

Technical advice

When a vented cylinder is the right choice

Gravity-fed systems, replacing old copper cylinders, and why stainless steel suits hard water areas.

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EcoTherm Direct Self Fill Thermal Store

Technical advice

What a thermal store does

How a thermal store stores heat from one or more sources and delivers mains-pressure hot water.

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Indirect Unvented Horizontal, photo 2

Technical advice

Horizontal cylinders for restricted height

Where a horizontal unvented cylinder makes sense: lofts, eaves and anywhere height is restricted.

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U-Cyl Plus

Technical advice

Cylinders engineered for heat pumps

Why heat pump cylinders need larger coils and the right flow rates to work efficiently.

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SuperFlow Twin Coil, photo 2

Technical advice

Twin coil cylinders for two heat sources

Combining a boiler with solar thermal or a heat pump in one cylinder.

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World Heat stainless steel buffer vessel

Technical advice

Why install a buffer vessel

Adding system volume to stop heat pumps, boilers and chillers short cycling.

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Low Loss Header

Technical advice

Why use a low loss header

Keeping flow through the heat source within its design conditions by separating primary and secondary circuits.

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Unvented Safety Kit

Technical advice

What’s in an unvented cylinder kit

The inlet control group, expansion vessel, T&P valve and tundish, and what each one does.

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Unvented Safety Kit

Technical advice

Why approved unvented components matter

G3 Building Regulations, safety, and keeping the cylinder warranty valid.

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World Heat storage calorifier with its connections and heating coil

Technical advice

Calorifier manufacturing standards

BS 853, PD 5500 and the Pressure Equipment Directive, and when each applies.

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World Heat plate heat exchanger

Technical advice

Gasketed vs brazed plate heat exchangers

How the two types are built, and where each is the better fit.

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World Heat storage calorifier with its connections and heating coil

Technical advice

Cylinder and calorifier insulation options

Injection-insulated steel casings, foam spray insulation and cased polyurethane finishes compared.

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Innovation 100 Greater Manchester: recognised as one of Greater Manchester’s most innovative businesses

Company news

World Heat Cylinders recognised in Innovation 100: Greater Manchester

A hundred of Greater Manchester's most innovative businesses have been recognised with the publication of the first Innovation 100 Report.

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Corrosion Roles

Technical advice

TechTalk 1: Corrosion of Cylinders

We kick off our new TechTalk Series with the topic “Corrosion of Cylinders” and make you aware of our “Technical Literature” section here on our website.

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New TechTalk Series

Technical advice

New TechTalk Series

Next month will see the introduction of our new TechTalk series here on our website.

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Graham VTC Skid-WWH Logo

Case studies

Plate Heat Exchanger Packages Heading to Headingly

World Heat Cylinders are proud to reveal our new range of Commercial Plate Heat Exchanger Packages!

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NeroStore plate heat exchanger package with buffer vessel

Case studies

Headingley Stadium redevelopment

Two bespoke 420 kW plate heat exchanger packages providing instantaneous hot water for the rugby and cricket stadiums.

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Case studies

Oil Cooler Heat Exchanger Manufactured

World Heat Cylinders have recently manufactured a replacement oil cooler for use on an oil rig in the Irish Sea.

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Need a cylinder built to your specification?

From 10 litres to 10,000 litres, our Manchester team designs, manufactures and tests every vessel in-house. 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.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.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.

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