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Unvented Water Cylinder Engineers
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Why Your Range Tribune Cylinder Has No Hot Water: Common Faults and What to Do Next 20 Jan 2026 A Range Tribune unvented cylinder is generally reliable, but when something goes wrong, you’ll often notice the issue immediately: no hot water, lukewarm water, slow heat-up times, or a complete failure of the system. Because these cylinders operate under mains pressure and include several safety components, figuring out the problem requires an understanding of how the system works and knowing which symptoms point to which faults. Below, you’ll find the most common reasons a Range Tribune cylinder stops producing hot water. 1. A Faulty Immersion Heater (Very Common) Most Range Tribune models include at least one immersion heater, and many… Read more
Water Heater Timers & Programmers: How to Use Them and Why They Cut Your Bills 13 Jan 2026 If you’re looking for a simple, reliable way to keep your hot water costs under control, a timer or programmer for your immersion heater is one of the easiest upgrades you can make. Modern unvented cylinders and thermal store systems already hold plenty of hot water, so you don’t need to heat it constantly. By heating water only when you’ll actually use it and shifting that heating to cheaper off-peak periods where possible, you can trim a lot off your monthly bills without giving up comfort. Why Timers and Programmers Matter in 2025 The most expensive way to heat water… Read more
The Tundish Explained: What It Is, Why It Drips, and When You Should Worry 6 Jan 2026 If you have an unvented hot water cylinder in your home, you’ve probably noticed the small plastic or metal fitting in the pipework. This is the tundish. Many homeowners aren’t entirely sure what the tundish does, why it sometimes drips, or when a drip is a sign of a serious problem. This guide explains how the tundish works, why it’s included in all UK unvented installations, and the situations where you should call a G3-qualified engineer if you notice a problem. What a Tundish Actually Does The tundish is a mandatory component under UK Building Regulations (G3). It sits in… Read more
Troubleshooting “No Hot Water” in Unvented Cylinders: Step-by-Step Checks Before Calling an Engineer 30 Dec 2025 Waking up to no hot water is frustrating, especially when your unvented cylinder has always been reliable. The good news is that many “no hot water” problems have simple explanations, and there are a few safe checks you can make before calling an engineer. This guide focuses on unvented hot water cylinders commonly installed across the UK, such as Megaflo, Range Tribune, Heatrae Sadia, Telford, and others. The steps below will help you diagnose the likely cause and decide whether a professional visit is necessary. 1. Check Whether Your Immersion Heater Is Actually Powered It sounds obvious, but it’s the… Read more
Thermal Store Systems vs Unvented Cylinders Which Is More Efficient in 2026 23 Dec 2025 Considering an upgrade to your hot water system? Maybe you’re just reviewing energy efficiency. In either case, you’ve probably wondered whether a thermal store system or an unvented cylinder is better for your home. Both have their own pros and cons, but understanding how they work and how they affect running costs is central to making the right decision in 2026. What Is a Thermal Store System? A thermal store is really just a large insulated cylinder that stores heat rather than hot water directly. Unlike unvented cylinders, which hold ready-to-use hot water, thermal stores contain “primary” water. Hot water… Read more
Is It Cheaper to Leave Your Hot Water On? Updated 2025 Analysis for UK Households 16 Dec 2025 One of the oldest questions when it comes to managing energy in a home is whether it’s cheaper to leave your hot water on all the time or switch it off when not in use. With rising electricity prices and smart tariff options, the answer isn’t always obvious. The best thing to do is learn more about cylinder insulation, timers, standing losses, and peak versus off-peak tariffs, so you can make the most cost-effective choice for your home. How Hot Water Cylinders Lose Heat All hot water cylinders lose a small amount of heat over time. This is called “standing… Read more
How the Boost Button Really Works on Unvented Water Heaters (And When You Should Use It) 9 Dec 2025 If you have an unvented hot water cylinder or thermal store, you’ve probably noticed the boost button on the controller. For many households, it’s the most misunderstood feature on the system. Some people use it daily, others never touch it, and plenty don’t actually know what it does. When used the right way, boost can be very convenient. However, using it incorrectly can increase your energy bills and shorten the lifespan of your immersion heater. This guide explains how boost works, when you should (and shouldn’t) use it, and how it interacts with your timer or programmer. What the Boost… Read more
Combination Valves on Unvented Cylinders: What They Do and How to Spot Problems Early 2 Dec 2025 If you have an unvented hot water cylinder in your home, the combination valve is one of the most important components. Despite being relatively small, this single assembly performs several critical jobs: regulating incoming mains pressure, preventing backflow, and protecting the system from dangerous over-pressure. When it isn’t functioning correctly, you might expect anything from low flow rates to high energy bills. In some cases, you may have a complete loss of hot water. Understanding how combination valves work and recognising early signs of problems can help. What a Combination Valve Actually Does A combination valve is a multi-function unit… Read more
Why a Combination Valve Failure Might Cost You More Than Just Hot Water 29 Oct 2025 When you turn on the tap, you expect hot water to flow. That ability depends on several components in your unvented cylinder, and one of the most important is the combination valve. This small but important part regulates incoming water pressure, prevents backflow into the mains, and protects your system from dangerous overpressure. If it fails, you might first notice it because there’s no hot water. However, the hidden consequences can run much deeper (and can be much more expensive) than having to take a cold shower. How a Combination Valve Works (and Why It Matters) A combination valve typically… Read more
Smart Maintenance: How a Simple Tundish Check Can Prevent Major Expenses 23 Oct 2025 Your unvented hot water cylinder has several safety features. One of the most visible (but least understood by UK homeowners) is the tundish. This small fitting sits in the discharge pipework between the cylinder’s safety valves and the drain. Its job? To give you a clear view of whether water is escaping from the system. It’s a low-tech part, but its job is pretty important. Checking it regularly could save you hundreds, if not thousands, in repair bills. Why the Tundish Matters Normally, your tundish should be dry. It only carries water if a pressure relief valve or temperature relief… Read more Categories
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