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Specialists in Electric Hot Water Cylinders

Comparing Gas and Electric Unvented Water Heaters: Which Is Right for You?

28 January 2025

When it comes to heating water for your home, the choice between gas and electric unvented water heaters can be puzzling. It’s a decision that boils down to energy efficiency, cost, and how you use hot water in your daily life. Let’s break it down.

What to Know About Gas Units

Gas water heaters are pretty common and found in many UK homes. They’re quick, reliable, and often cheaper to operate than electric models, depending on where you live and other factors. If your household demands large amounts of hot water, such as for a family of four or more, a gas heater might be the better fit.

Gas heaters heat water almost instantly and can handle high demand, such as multiple showers or baths in quick succession. That said, the initial cost can be higher, but gas heaters usually make up for it in lower running costs over time.

Another advantage is their independence from electricity; they keep working during power cuts, which can be a major benefit on a chilly night. However, they do require a connection to the gas grid and regular servicing to ensure safety.

What to Know About Gas Units

Electric unvented water heaters, on the other hand, are simple, straightforward, and easy to use. They’re easier to install, take up less space, and are often the go-to option for homes without a gas connection.

Modern electric heaters come in various sizes, making them a good fit for smaller households or properties with limited space. For instance, you can easily tuck them under the stairs or even in a basement. And because they’re unvented, there’s no need to install them high up in the home (they’re not gravity-fed). They’re also safer, as there’s no risk of gas leaks or carbon monoxide.

When paired with renewable energy sources like solar or wind power, electric unvented cylinders can be an environmentally friendly choice. However, they’re often more expensive to run, especially if you’re using large amounts of hot water daily. Advances in technology, like heat pump water heaters, are making electric options more efficient, but these systems still come with a higher upfront cost.

The Energy Consumption Question

The UK’s drive toward net zero carbon emissions by 2050 is reshaping how everyone uses energy. Gas heating systems might become less common as electric systems and renewable energy solutions gain ground. This shift is something to consider if you’re looking to future-proof your home. An electric water heater might tie in better with long-term sustainability goals.

Making Your Choice: Gas or Electric?

So, how do you choose? There’s no one-size-fits-all solution. You’ll need to take a bespoke stance.

Start by evaluating your household’s hot water needs. A large family with high water usage might lean toward gas for its efficiency and lower running costs. If you’re living alone or in a smaller household, an electric heater might be the smarter, more flexible option.

Think about your home’s energy setup and your environmental priorities. Either way, investing in an energy-efficient model and keeping up with regular maintenance will ensure your water heating system works optimally for years to come.

If you’re not sure which option is best for you or you want to discuss installation, get in touch with EasyFlow.

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