Eco Benefits of having your Gas Boiler Replaced

Replacing an older gas boiler can help homeowners save money by reducing energy waste. By improving efficiency, a new boiler can also reduce carbon emissions and be a positive step in making a property more environmentally-friendly.

Benefits of Replacing Gas Boilers

According to the Energy Saving Trust, boilers can account for approximately 55 per cent of what a homeowner might spend on energy bills in any given year. This makes having an efficient and effective boiler essential. An efficient boiler maximises energy use, and helps reduce the amount of energy needed by reducing waste. At the same time, an efficient boiler is just one way to make your home more eco-friendly. Other changes such as improving glazing on doors and windows to reduce heat loss as well as ensuring the property's wall are properly insulated also important ways to improve a property's energy use.

Modern gas boilers are generally condensing boilers, which are more efficient than older boilers. Generally, they are 90 per cent or more efficient compared to older gas boilers that lose much more heat when they are operating. These types of boilers have a heat exchanger that recovers more heat than other types of gas boilers. Gases are also sent up a flue, which also makes the boiler more energy efficient. Although installing an efficient boiler is important, so is ensuring it is serviced regularly. A well-maintained boiler will burn fuel efficiently by ensuring settings are accurate and connections such as the flue are properly installed and in good condition.

According to the Energy Saving Trust, replacing a G-rated gas boiler without controls with an A-rated one with full programmable heating controls can save about £340 a year in energy costs for a semi-detached home. This will also help cut about 1,500 kilograms of carbon dioxide a year. Cost savings depend on the size of the property and where you live, but generally range from £145 per year for a mid-floor flat to £570 for a detached home. When replacing a programmable G-rated boiler with an A-rated condensing boiler with a programmer, room thermostat and thermostatic radiator controls, the savings are between £100 for a mid-room flat and £370 for a detached house.

Choosing and Installing a Gas Boiler

When installing a gas boiler, always work with installers that are registered with the Competent Persons Register in England and Wales, the Heating and Hotwater Industry Council (HHIC) or the Scottish and Northern Ireland Plumbing Employers' Federation (SNIPEF). To ensure installations meet all safety requirements, gas boilers should only be installed by someone who is Gas Safe registered. Local specialists operate throughout the UK including in Liverpool, Nottingham and Portsmouth.

When choosing a boiler, it's important to consider the options that are available. Properties with access to mains gas are ideal for a gas boiler, which is also the most affordable heating system. Homes without a gas connection must have one installed. Other fuel types include biomass and oil. Regular gas boilers use a separate cylinder to store hot water, while combination ones provide water directly from the boiler. The benefit of combination or combi boilers is that hot water is provided on-demand, whereas hot water may not be available once hot water in regular boiler's accompanying cylinder is depleted. Regular boilers are typically more efficient when producing hot water, although there is heat loss from the cylinder. Overall, combi boilers are generally more efficient.

The choice of boilers depends on individual needs and the size of the property. A regular boiler is recommended for larger households that use significantly more water since the hot water cylinder provides additional capacity. Combi boilers are well-suited for smaller households as well as smaller properties. A regular boiler requires additional space in, for example, a loft or roof space in order to store the hot water cylinder. Combi boilers, by comparison, are more compact and require less space.