Combi Boiler Installation in Amersham (63)

Absolutely not!

Installing a boiler isn’t a DIY job for safety reasons and it’s actually illegal to install a boiler yourself.

You must hire a Gas Safe registered tradesperson to carry out the job, as this ensures your boiler will be installed safely and in a way that maximises performance and efficiency.

Extremely difficult.

Installing a combi boiler is a complicated and technical process that requires the skills and experience of a trained professional. Connecting the combi boiler to both gas and water supplies are some of the most complex and critical steps.

You should never attempt to install a boiler yourself unless you’re a Gas Safe registered engineer, as this can put you at risk and it’s a crime.

The cost to fit a combi boiler starts from £300. This is the typical day rate boiler fitters charge, and fitting a combi boiler takes about four to six hours.

If you're converting a regular boiler into a combi boiler, which typically takes about 12 hours, the cost could be around £600.

A simple combi boiler replacement with no alterations takes about four to six hours.

More complicated installations, such as converting a regular boiler into a combi boiler, takes about 12 hours.

If you’re changing the location of the boiler and need additional pipework, this will add roughly another 4 hours to the process.

Combi boilers can be suitable for 4-bedroom houses, as long as the demand for hot water isn’t too high.

Because combi boilers don’t use hot water storage cylinders and instead heat water directly from the mains when you turn on the tap, they aren’t the best option for homes that require a lot of hot water.

That said, you can always get a combi boiler with a higher output, but this might cost you more in operating costs than a different type of boiler.

Combi boilers have the potential to save you a significant amount of money, but this depends on a few factors. If you’re replacing an old boiler, such as one over 10 years old, you could save up to 40% on your monthly bill.

Combi boilers also only heat water when you need it, so if your hot water consumption is fairly low, you can also expect to see significant savings after the switch. Plus, these boilers are often cheaper to install than other types, and they operate more efficiently.

The largest and most powerful combi boilers can support around 20 radiators, but this can vary depending on the size of the radiators and a few other factors. These have an output of 35 to 43kW.

Small- to medium-sized combi boilers can handle between 10 to 20 radiators. For a precise guide, consult a combi boiler installation company.

Gas combi boilers are usually cheaper to run than electric combi boilers because gas is currently cheaper than electricity.

This may change in the future, as the UK government plans to phase out gas boilers, so there may be more incentives to use electric combi boilers at some point.