A Long-Term Investment: Which Boilers Last The Longest?

When selecting a new boiler for your home, you want it to be a long-term investment.

According to Checkatrade, the average starting cost of a new gas combi boiler is around £1,500 + VAT, excluding labour and additional components.

Since boilers are expensive, you want to ensure they last as long as possible. So, how long does the average UK boiler last?

The Average Lifespan of a UK Boiler

The UK’s four top-selling boiler brands offer warranties of up to 12 years, with brands claiming that their lifespans range between 10-15 years. These top-selling boiler brands are:

• Worcester Bosch
• Vaillant
• Ideal
• And Viessmann

To qualify for a warranty of 12 years with certain boiler brands, you do need to meet several criteria, which include:

Installation By A Brand Accredited Gas Safe Registered Engineer

While it is a legal requirement, brands also want you to have a qualified professional to install your new boiler.

From the brand’s perspective, getting its products installed properly improves the boiler’s potential lifespan and ensures its safety and efficiency.

Annual Services

We’ve spoken about the importance of getting your boiler serviced annually. Getting your boiler serviced annually comes with many benefits, which include the following:

• Safety
• Avoiding unnecessary breakdowns
• Maintaining its efficiency
• And saving money because of regaining boiler efficiency.

Installing Required Extras

According to the evidence submitted by Environmental Treatment Concept Ltd, 70% of the UK’s population’s water supply is considered hard water. Hard water has a higher-than-usual concentration of natural minerals, which, over time, can turn into limescale in your home’s boiler system.

A build-up of limescale on the surfaces of your system’s pipes in your boiler can lead to many issues, including the following:

• Reduction of your boiler’s efficiency due to reducing heat transfer.
• Overheating in some non-covered limescale regions in the system.
• Larger limescale build-ups can cause pipes to clog.

When your system overheats, the extra strain causes more wear and tear, resulting in breakdowns. A common issue related to limescale build-up is kettling. The noise, similar to a stovetop kettle boiling, is generated by the increase in temperature in your system, which turns into steam and escapes.

As expected, boiler manufacturers want to protect their products against the UK’s hard water.

Additional products that boiler brands will want to be installed include filters to remove debris and metal fragments caused by rust.

The Gas Safe registered engineer will also add water softeners or conditioners during the annual service. These additives will work to reduce limescale build-ups.

Another warranty requirement from your boiler’s brand is scheduling a system cleans or Powerflush. Having your system flushed correctly will ensure that your boiler works efficiently for longer.

The last requirement from selected boiler brands is to install smart devices such as:

• Smart thermostats
• Smart controls
• Smart radiator valves

These new Internet of Things (IoT) items will also allow you, as the user, to control your boiler’s system precisely. Controlling specific functions of your boiler’s operations will lessen its wear and tear.

It also needs to be mentioned that these warranty requirements can be considered tips for extending your boiler’s operational lifespan.

Now that we know how to ensure a new boiler lasts as long as possible, what should you look out for when buying a boiler with a long-term investment goal?

How To Tell Your Boiler Pick Is Going To Last

There are a few indicators that you are buying a boiler that’s going stand the test of time, which includes the following:

Brand Reputation

A brand’s reputation is earned by consistently delivering on a promise. Whether that’s for innovation, durability, or affordability, these reputations are crucial to these brands.

If you want to check if a brand has a reputation for creating a boiler that will last, you can check websites like Trustpilot.

Material Quality

A quality boiler is only as good as the sum of its parts. If the manufacturer substitutes materials for cheaper ones, the boiler will wear down faster than those that use quality materials.

Quality materials that will ensure that your boiler lasts longer are as follows:

• Stainless steel heat exchangers
• Copper piping
• Brass fittings and valves
• Composite materials for non-metallic parts (e.g. boiler cover)
• Nickel-plated components ensure an extra layer against corrosion
• Ceramic igniters
• Glass-fiber reinforced insulation
• And titanium-coated burners

If the boiler you’re interested in lists these materials in the product’s manufacturing, you know it will last.

Longevity Of Replacement Parts

We’ve all experienced some sort of planned obsolescence, which, in economics and industrial design, is the practice of companies planning the end of a product’s life. Unfortunately, boilers must have a planned obsolescence timeframe, as no company can produce replacement parts forever.

To ensure your boiler lasts as long as possible, review the boiler brand’s reputation for offering replacement parts for older models. Or if the brand is known for replacing boilers rather than fixing them.

Sidenote: If you’re interested in whether you can source a part for an older boiler in your home, a simple Google search of the boiler’s serial number or GC (Gas Council) number will give you an idea. Google results that produce many active links mean you can source new replacement parts, while the opposite indicates it might be time to fit a new boiler.

A clear sign that a boiler will last is if the brand encourages users to repair its products. This also indicates that the brand builds products to last.

Currently, WarmZilla offers repair services, which means you can talk to our consultants to confirm which brands our team can fix.

Now, what boilers will last the longest in the UK marketplace?

Which Boilers Are Going To Last The Longest?

Our top choice for a boiler that’s going to last is…

Worcester Bosch Greenstar Range

Worcester Bosch is the top-selling boiler manufacturer in the UK and is known for being reliable. The newest range of Worcester Bosch Greenstar 4000 is available with a warranty that can be extended to 10-12 years!

And due to its popularity, parts will be available for some time.

Also, the Greenstar 4000 comes with:

• Stainless Steel Hest Exchanger
• Brass fittings
• And copper piping

With our current Worcester Bosch Greenstar 4000 30kW Combi Boiler Tech/Energy Bundle, you also get the following:

• Google Nest 3rd-gen Wireless Learning Thermostat FREE
• Google Nest 2nd Gen Mini Smart Wi-Fi Speaker FREE – IFC
• And magnetic filter

Using IoT devices and relying on systems filters allows you to control your boiler precisely from day one.

Other boilers that could stand the test of time include the Ideal Logic2 (24kW and 30kW) and Viessmann Vitodens 100 W (30kW and 35kW).

If you have any other questions, feel free to contact our team.