Combi Boiler Prices Fitted
How Much do Replacement Combi Boilers Fitted Cost?
As an example, you could possible find a “headline price” of anything from £600 to £1,500, but once you factor in the extra’s you could be looking at around £2,000 to £2,500. Even the Energy savings trust give the average price of just replacing only the boiler to be around £2,300.
if you need a lot of work combined with a higher power boiler then you may easily need to be thinking more in terms of over £2,500 / £3,000 to have the complete job done properly.
The reason for the wide variation in the initial & final prices is that there are quite a few factors to take into consideration, as you may find the initial cost of buying the boiler is not the only thing you have to pay for.
Even if it is a straightforward like-for-like replacement, you need to allow for the cost of installation on top of the cost of the boiler. Labour charges can vary greatly across the UK or from installer to installer and you have to use a properly qualified engineer (Gas Safe).
FITTED COMBI BOILER PRICES (no extra’s)
|Manufacturer||Output||Fitted prices range|
|BAXI||24 kilowatt||from £1,400 to £1,600|
|VAILLANT||32 kilowatt||from £2,100 to £2,200|
|BAXI||40 Kilowatt||from £1,600 to £1,800|
SUPPLY ONLY COMBI BOILER PRICES (literally, just the boiler unit)
|Manufacturer||Output||Boiler only price range|
|BAXI||24 kilowatt||from £600-800|
|VAILLANT||24 kilowatt||from £600-800|
|WORCESTER BOSCH||30 kilowatt||from £700-850|
Most replacements for units that have failed could also entail some kind of cleaning, flushing, filtration new piping, relocation or something else – in case like this, the extra charges can stack up.
What type of power output for the boiler will I need and how much is the cost?
Its generally thought that, as a rough guide, for the following sized properties you would require the indicated power capacity:
- small property, 1 or 2 bed apartment or flat – 24kW to 30kW – price range of £600 to £800
- medium property, 2 or 3 bed house – 28kW to 35kW – price range of £650 to £900
- large property, 4 or 5 bed house – 35kW to 45kW – price range of £900 to £1,600
Two other factors in Combi Boiler prices will be the power output, measure in Kilowatts (kW) and flow rate measured in Litres per minute. You can see more about flow rates here.
Another thing to bear in mind is that, even if you install a unit that has a high flow rate capacity, your mains supply flow rate (if lower than the flow rate capacity of the boiler) is going to dictate how fast the water flow is going to be from the taps.
What is a combi boiler?
Combination (combi) boilers are the latest and one of the most popular products for central gas heating. These boilers not only provide central heating to your radiators but also provide heat to your running water supply i.e. they provide us hot water & heating whenever we need it.
Typically wall mounted and found in the kitchen area of a home, Combi Boilers look like a big box, rather like a refrigerator, on the outside. They consist of a large upper part, and a comparatively smaller lower part.
The boiler mainly consists of a heat exchanger, fan, electrodes, case seals and many other materials all combined in one place to reduce the space it occupies.
When working as central heating systems, Combi Boilers pump water all around your homes’ heating system in a completely sealed system. As hot water providers, Combi Boilers work in the following way.
A hot water tap is turned on, and water enters the boiler. The water flow sensor senses the flow of water and a computer chip (situated inside), in turn, fires up the burner.
The water then flows through the heat exchanger which heats up the water to the desired temperature and you receive it. As soon as the tap is turned off, the burner stops working. In this way Combi Boilers are favoured for their ability to deliver “instant” hot water.
What types of homes does a Combi Boiler suit?
This type of water heating system, whilst incredibly convenient, is not designed to suit all circumstances and like almost everything else, Combi Boilers have their good and bad qualities too.
In short, if you consider your home to be small to medium sized and you expect the likelihood of simultaneous demand for hot water to be quite low, then a Combi system is going to be fine for your needs.
If you have a larger house, everybody wants to use the hot water at the same time and you have central heating radiators all over the place, then you should be considering a more conventional solution (called a “System Boiler”) with a separate water tank.
A point of note, is that Combi Boilers need good mains water pressure to be effective. If your supply is erratic or suffers regular pressure fluctuations (loss) then it may prove a bad idea to fit this type of hot water boiler.
As it is estimated that around 60% of the average household energy bills come from heating, getting the right (or wrong) boiler fitted can have a big financial impact. This impact will hit you not only in the purchase cost, but also in the long term impact on your family budget.
- Saves up A LOT of space. You don’t need any airing cupboard, hot water cylinders, or cold storage tanks.
- They are extremely fast and take seconds to heat up your water. Now you don’t have to wait for the whole storage tank to heat up since the boilers take water directly from the main supply and heat it up.
- Unlimited supply of hot water. As long as there is water available in the main supply, you will get your hot water.
- Since all water reaches you directly from the main supply, all the water is potentially drinkable so you can drink water from all your taps if you need to.
- Combi Boilers are much less complicated than the usual heating systems and so they are comparatively cheaper. Also, their parts are easy to replace.
- They are not likely to suffer from pressure issues and air locks since the water comes from the main and not stored somewhere else.
- The boilers are easy to clean because there are less parts involved.
- These boilers are highly efficient and according to a report, can help you lower your bills by £350 per year.
- They require a very good mains pressure to work efficiently.
- If the boiler breaks by any chance, it is fairly impossible to get hot water except by using the kettle. Traditional heaters usually come with an electric immersion backup heater so that if they break, heating is still possible.
- You cannot have a power shower with these as they run on the mains pressure only.
- And then again, if the mains pressure is not enough, you shall not have a good flow of water. Flow rates of Combi Boilers can vary a lot.
- The boiler can heat only one thing at a time. So, if someone opens hot water in the shower while the boiler is heating up your home, it will stop working as a heater and give preference to the bath (or vise-versa).
- One combi boiler is not enough for a large home because it is hard for it to heat up a lot of water if more than one bathroom is being used at a time.
- Considered incompatible with Solar Thermal hot water systems.
All in all, combi boilers are a great form of advanced water heating technology for us. The leading combi boiler makers in the UK at the moment are Baxi, Ideal Boilers, and Worcester Bosch, as per customer ratings.
Repair & Maintenance
It’s going to be a good thing have a service or maintenance contract for your boiler. If you can get boiler insurance this is also a prudent move. Murphys’ law* seems to love boilers. Stories of people losing their hot water or heating supply at exactly the wrong time are heard all the time.
So if your system has a problem, having a backup plan can prove invaluable, given the likely cost of repair or replacement – The cost of repairing a combi boiler can be surprisingly high, since individual parts cost a lot, however, if the whole thing needs replacing, it could cost over £2,000 (while buying it without fitting can cost up to £1500).
*Murphy’s Law – Anything that can go wrong will go wrong.
Potential Saving From Installing a new boiler – (source: www.energysavingtrust.org.uk)
These are estimated figures using a gas fired, new A-rated condensing boiler with a program controls Vs an old boiler (as of April 2017).
Gas fired Combi Boilers are really good at their job, delivering instant hot water to your home. Extremely energy efficient, compact and relatively simple to install, but they have do have some limitations as to suitability in high simultaneous hot water demand situations.
There are some very good quality products in the market, but prices can vary a lot, and it’s easy to end up paying more than you expected for the final job. So our recommendation is to collect a number of quotes (4 or 5) from various suitably qualified installers / suppliers and take the time to decide which solution suits your circumstances best.