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A Complete Guide to Combi Boilers

Many homes across the UK have combi boilers installed. Not only are they small, they are also efficient, provide hot water when you need it, and there are no additional tanks needed.  

Even though they are installed in most houses, they are not appropriate for every property. We hope our ultimate guide will help you learn everything you need to know about combi boilers.

Baxi Combi boilers

A Guide To Combi Boilers

Is a combination boiler the best option for your home? 

As fantastic as they are, combi boilers are not suitable for every household. You should think about a system or conventional boiler if: 

There are multiple bathrooms in your house. A combi boiler draws water from the mains, and if it has to provide many outlets at once, it must divide the flow, making it weaker. 

The mains pressure is insufficient. The flow from the mains determines the pressure of the water. 

 A system boiler should be considered if you require a boiler that can fulfil high hot water needs in a house with two or more bathrooms. This is due to the fact that they keep hot water in a cylinder.

How do combi boilers work? 

They heat water from the mains to heat your house and provide hot water. The boiler heats the water and delivers to the taps, baths and showers. 

System and conventional boilers, on the other hand, store hot water in a cylinder, requiring more space to meet the demand for hot water.

Why should you go for a combi boiler? 

There are several reasons why most homeowners choose combi boilers: 

They are a single integrated unit, as opposed to system or conventional boilers. This eliminates the requirement for an additional water tank or hot water cylinder. They can also generally fit inside a kitchen cabinet. Saving you lots of room in your house. 

They are quite simple to install since they are an all-in-one item. Simple installation implies a faster installation, which means a lower installation cost. 

They provide hot water on demand, eliminating the need to utilise additional energy to keep a storage cylinder warm. There's also no waiting for the tank to replenish once the water runs out. 

A combi boiler draws its water supply straight from the mains, resulting in a substantially greater flow of hot water.

a guide to Combi boilers

What size combi boiler do you need?  

You must get a boiler that is the correct size for your house. A boiler's size is measured through its output rating, which measures the boiler's power. If the boiler's power is low, it will struggle to meet your hot water demand.  

If it is too big, it wastes energy and increases your heating bills. Because of this, it is very important to ensure the output rating is appropriate for your house.  

Combi boilers feature two output ratings for central heating and hot water. For example, if you have up to 10 radiators, the central heating output you should choose is 24 - 27 kW. If you have 10 - 15 radiators, it should be 28 - 34 kW and for 15 - 20 radiators it should be 35 - 42 kw. 

If you need assistance in choosing the right combi boiler for your home, we can help! Speak to our highly knowledgeable heating engineers throughout Birmingham, Sutton Coldfield, Solihull and Tamworth by calling us on 0121 405 0404.

How much does a combi boiler cost? 

You should budget to spend between £400 and £2000 for your new combi boiler. So you may choose between a low-cost and a high-end model. 

Remember that you'll also need to hire a Gas Safe registered engineer to install your new boiler in addition. The installation cost may vary depending on the source and will be influenced by any additional work that must be done. The cheapest installation is a basic like-for-like boiler replacement, but the cost will rise if you want to move your boiler, modify your pipes, or replace radiators. 

Comparing numerous estimates from various heating companies is the best method to ensure you receive the best installation pricing. Get a free boiler estimate with us!

We hope you choose AllForPropery for any boiler installation services that you may need.