ecoTEC Plus Combi LPG
Buying a new boiler tends to be a decision that most people need to make in a hurry. Usually, your old boiler has broken down, it's the depths of winter and you need to get your hot water and central heating restored to its former working glory.
Unfortunately, buying a new boiler and getting it installed can be a bit of a minefield of big decisions. Choose an unreliable boiler or make the wrong decision about part of the installation, and it's a mistake you and your bank balance will later regret.
We've consulted industry experts so that you can know how to get the best boiler installation. This includes key decisions you need to consider that could prolong your boiler's life.
Read on to find out what you need to ask and tell your engineer when they visit to give you a quote, how to spot the telltale signs of an , and what you should expect from a proper boiler installation quotation.
When you invite a heating engineer to give you a quotation for a new boiler, it should not be a quick conversation. We think a good installer should take the time to conduct a full heating survey of your home and learn all about your heating and hot water requirements before giving you their recommendation on the type and size of boiler you need.
Here are a few questions to think about before you have a conversation with your installer:
Tell your boiler installer all about your heating and hot water needs in detail, and also any future plans you might have for your home.
Have a think about the following questions and make sure you relay the answers to your heating engineer:
The answers to these questions will be vitally important for the engineer to correctly recommend the right type and size of boiler for your home.
When you talk to the heating engineer about your hot water needs, we think a good installer will mention some or all of the following for you to consider. If they don't come up in conversation, ask about them.
A good installer will be able to give you a full understanding of the benefits of each extra and advise whether they are necessary. Not all these extras will be necessary for many installations.
The cost, which will vary by property, will need to be weighed up against the benefit of having each of them done. However, extras such as a system flush and a water filter are likely to be good for the ongoing health of your boiler and prolong its lifespan.
This is the pipework that takes water produced from the boiler away to the drain. External pipework should be kept to a minimum. If installation options only allow for external routing, the installer must ensure that the pipework is protected from freezing temperatures, in accordance with the manufacturer's instructions.
Water treatment (cleansing and flushing) is around £375, based on a three-bed semi-detached house with 10 radiators.
Most heating systems will require at least a simple gravity cleanse and flush, with the addition of a chemical inhibitor on the final fill of the system. Heavily sludged systems may require a powerflush.
Your installer should advise you of which is most appropriate and why. Some basic signs of a heavily sludged system include:
You can often get a rough idea of how clean or dirty the system is yourself by carefully bleeding a little water from a radiator valve, with a tissue.
When refilling the heating system, ensure the installer adds a chemical inhibitor to safeguard against the formation of sludge, corrosion and scale build–up.
Ask your installer if you need them, as they can prolong the life of a boiler. They usually cost around £120, plus installation.
Scale reducers are particularly important for combi boilers installed in a hard-water area. It may be that a powerflush (above) or system filter is not necessary in all cases, but each of them should at least be considered by you and the installer before the installation begins. Fitting a new boiler into a dirty or unsuitable system is a shortcut to future reliability problems.
The plume effect is water vapour from the boiler flue.
Ask your installer how big a plume are you likely to get from the condensate and where is it going to be situated? Will it bother the neighbours because of where it is situated?
It's possible to take the plume away using an additional pipe called a plume management kit.
Some older radiators may be inefficient or have internal corrosion - which means they may need replacing. Ask your installer's advice.
New government legislation requires that each new boiler installation includes at least one of four energy-saving measures. You can choose from: flue gas heat recovery, load-compensating thermostats, weather-compensating thermostats or smart heating controls.
Your installer should be able to talk you through the pros and cons of each and advise on the most appropriate for your home.
After installation, your installer should complete a series of safety and performance checks. The results of these should be recorded in the back of the instruction manual; this forms part of the benchmark process, which is important for the warranty. You should make sure that your installer registers your boiler with the manufacturer to activate the warranty.
If, after these checks, you notice cold spots on a radiator or it is taking too long for some radiators to heat up, this is a sign that your system hasn't been balanced or cleaned properly, so you should contact the installer immediately.
Getting the best boiler installation depends a lot on the installer you choose for the job, so pick a , all of whom have passed our stringent standards to become accredited. To replace a gas boiler, the installer must be Gas Safe registered - so ask to see a registration card, or check the . But we also think that you, the customer, have an important role in getting across to the installer exactly what it is you want from your new boiler.
While quotations from heating engineers should be clear and correctly itemised, we have seen many that are bewildering.
Considering that a typical boiler installation can cost between £2,000 and £3,000, we think it is important that you know what you are paying for.
Here is what you should look for in a correctly itemised installation quote:
New regulations were introduced in 2017 to govern boiler installations in England.
You can choose from:
Speak to your engineer about which additional energy-saving device is the best for you and your budget. Some of the energy-saving devices, such as flue gas heat recovery may already be included with the boiler you have chosen.