Are you thinking about replacing your old boiler but not sure where to start? Choosing the right boiler for your home is one of the most important decisions you can make as a homeowner, and getting it wrong can be a costly mistake. If you have been looking into Vokera boiler installation in Aylesbury or the surrounding areas in Buckinghamshire, this guide will walk you through everything you need to know before committing to a new system.
At Chiltern Boilers, we install and service Vokera boilers across Aylesbury, High Wycombe, Leighton Buzzard, and Haslemere, working on gas, oil, and LPG systems every day. Here is our honest, expert advice on how to find the right Vokera boiler to suit your home and your budget.
Why Choose a Vokera Boiler?
Vokera has been manufacturing boilers in the UK and Ireland for over thirty years, and they have built a solid reputation for reliability, efficiency, and value. Their range covers combi boilers, system boilers, and heat-only boilers, which means there is a model to suit most types of property, from a small terrace to a larger detached home.
Vokera boilers are designed with the installer in mind, which makes servicing and repairs straightforward. As qualified engineers, that matters to us. A boiler that is easy to work on means lower service costs for you in the long run, and fewer headaches when something does need attention.
Understanding the Different Types of Vokera Boiler
Before you can choose the right model, it helps to understand the three main types of boiler available.
A combi boiler heats water on demand, without the need for a separate hot water cylinder or cold water tank. This makes it the most compact option, and the most popular choice for smaller properties and homes with one bathroom. Vokera’s Unica and Easi-Heat ranges are well regarded combi options that offer good efficiency ratings and straightforward controls.
A system boiler works with a hot water cylinder but does not require a cold water tank in the loft. This makes it a good fit for larger homes with more than one bathroom, where demand for hot water is higher. The water is stored and kept hot, so multiple taps and showers can be used at the same time without pressure dropping.
A heat-only boiler, sometimes called a conventional or regular boiler, works alongside both a hot water cylinder and a cold water tank. These are often found in older properties and are the right choice when replacing a like-for-like system where the existing pipework is not being changed.
How to Choose the Right Size
Boiler sizing is not about the physical size of the unit. It refers to the output, measured in kilowatts, and getting this right is critical. A boiler that is too small will struggle to heat your home efficiently. One that is oversized will cycle on and off too frequently, wasting energy and wearing out components more quickly.
As a general guide, a small flat or two-bedroom home will typically need a boiler with an output of around 24 to 28 kW. A three to four-bedroom property will usually require something in the 28 to 35 kW range, while larger homes with five or more bedrooms may need a 35 kW output or above. That said, these are guidelines rather than rules. The right output depends on the number of radiators, the level of insulation, and how the property is used.
When we carry out a Vokera boiler installation in Aylesbury or across our wider service area, we always carry out a proper heat loss calculation rather than guessing. This ensures the boiler we recommend is genuinely right for your home, not just close enough.
What About Efficiency Ratings?
All modern boilers sold in the UK must meet a minimum efficiency standard, but there is still variation between models. Vokera’s current range carries ErP A ratings, which is the highest available. Switching from an older G-rated boiler to a modern A-rated Vokera can reduce your heating bills significantly, and the savings will begin from the first winter.
If you are based in Leighton Buzzard or High Wycombe and your current boiler is more than twelve years old, the chances are that upgrading to a new Vokera will pay for itself over time through lower running costs.
Does Your Flue Position Matter?
Yes, and this is something that catches many homeowners out. The flue is the pipe that carries waste gases from the boiler to the outside of the property. Where the flue exits the building can affect which models are suitable, and whether additional parts are needed. If you are replacing an existing boiler, the flue position is usually straightforward. If you are moving the boiler to a new location, there may be extra costs involved.
Our engineers serving Aylesbury and Haslemere will always assess the flue route as part of the survey, so there are no surprises on installation day.
What to Expect From the Installation Process
A standard boiler installation typically takes between one and two days, depending on the complexity of the job. If you are replacing a like-for-like combi boiler in the same position, the process is usually quicker. Moving a boiler, upgrading from a heat-only system to a combi, or adding new pipework will add time to the job.
We will always protect your floors and work areas, leave the property clean and tidy, and commission the new boiler fully before we leave. You will receive all the relevant documentation, including your Building Regulations compliance certificate and the manufacturer’s warranty details.
Vokera Boiler Warranties
Vokera offers manufacturer warranties on their boilers, typically ranging from two to seven years depending on the model and whether the installation is registered with them. We handle the registration process as part of every installation, so you do not need to worry about it.
Ready to Take the Next Step?
Choosing a new boiler is a significant investment, and it pays to get the right advice from engineers who know the products inside out. Whether you are considering a combi, system, or heat-only boiler, we will help you find the right Vokera model for your home and budget, with no pressure and no jargon.
Get in touch with us today to arrange a free survey and quote for your Vokera boiler installation in Aylesbury and across Buckinghamshire.