Related FAQs

Question 1

Should I turn off my boiler in the summer?

Accepted Answer

Generally, it is best to keep your boiler switched on even during the summer months, however this can depend on your home and your circumstances.

Question 2

Is a condensing boiler a combi boiler?

Accepted Answer

Is a condensing boiler the same as a combi boiler? The short answer is yes. However, there are 3 types of condensing boilers.

Question 3

Why should I get the water in my central heating system cleaned?

Accepted Answer

If your boiler breaks down due to sludge in the system, the repair work is not covered under your warranty and can lead to expensive repair bills as a result.

Question 4

Why should I have a filter fitted?

Accepted Answer

Many boiler breakdowns occur due to sludge in the heating system. A magnetic filter is an effective way of preventing this sludge from accumulating, and may prevent costly breakdowns at a later stage.

Question 5

How often should I have my boiler serviced?

Accepted Answer

We advise you have your boiler serviced every year in accordance with the manufacturer’s instructions and to keep your warranty valid.

Question 6

Why is my boiler pressure low?

Accepted Answer

A decrease in boiler pressure can be the result of air getting into the system, a leak, or debris. Adjusting the pressure is usually straightforward, but contact an engineer if you notice the pressure dropping frequently.

Question 7

How long does a boiler last?

Accepted Answer

Typically, a well-maintained boiler will last between 10 and 15 years, with a service carried out at least once a year.

Question 8

How energy efficient is my boiler?

Accepted Answer

Most modern boilers are designed to be highly efficient, due to changes in building regulations. You can use your boiler’s Energy related Products (ErP) directive certification to understand how efficient it is.

Question 9

Which Baxi boiler do I have?

Accepted Answer

You can identify what type of Baxi boiler you have by checking the instruction manual, serial number, or by calling Baxi Customer Support on  0330 678 0917.

Question 10

How do I know if I've got sludge in my central heating system?

Accepted Answer

Issues with your radiator temperature, leaks from your boiler, and unusual sounds from within your system are all indicators that there is a buildup of sludge.

Question 11

How does a system boiler work?

Accepted Answer

A system boiler has all the main components of the heating system within it, allowing a neat and quick installation. The boiler heats water stored in a cylinder or tank, delivering hot water when required and is particularly beneficial in properties that have a high demand for hot water.

Question 12

Where is safe to install a boiler?

Accepted Answer

You can have your boiler installed safely in most rooms. However, you do need to consider the Building Regulations.

Question 13

What is a condensing boiler and how does it work?

Accepted Answer

A condensing boiler is a boiler that recaptures and reuses the heat from combustion gases that would normally be lost through the flue. There are three main types of condensing boiler: combi, system, and heat only boilers

Question 14

What temperature should my boiler be set at?

Accepted Answer

Typically, your boiler should be set to at least 65 degrees Celsius to prevent bacteria growing in the water and maintaining comfort.

Question 15

What is the Boiler Upgrade Scheme?

Accepted Answer

The Boiler Upgrade Scheme (BUS) provides eligible homeowners a grant of up to £7 500 to help with the cost of low-carbon heating systems such as air source heat pumps.

Question 16

Does my boiler filter need cleaning?

Accepted Answer

Your boiler filter should always be cleaned as part of your boiler’s annual service.

Question 17

Can I run a bath and shower at the same time?

Accepted Answer

Depending on whether you have a hot water cylinder, you can normally run a bath and a shower at the same time. A system boiler and storage cylinder may be more suitable for properties that have a higher demand.

Question 18

What are the different types of boilers?

Accepted Answer

The main types of boiler are combi, system, heat only, and electric boilers. The one that you choose for your property will depend on your specific needs and aspects of your home.

Question 19

What do Baxi error codes E23, E53, E133, E119 and E128 mean?

Accepted Answer

If your boiler shows error code E28, E53, E133, E119 or E128 then your condensate pipe may be frozen.

Question 20

What is Benchmark?

Accepted Answer

Find out everything you need to know about the Benchmark Scheme - how it works, benefits, and how it affects your boiler warranty.

Question 21

Where can I find the serial number of my boiler?

Accepted Answer

Serial number can usually be found on the drop down panel on the front of the boiler. Some boilers have a tag underneath the boiler. Find out more...

Question 22

How old is my boiler?

Accepted Answer

You can find out how old your boiler is by visiting the official industry database. Read more...

Question 23

How does a heat only boiler work?

Accepted Answer

Heat only boilers heat the water stored in a cylinder or tank, delivering hot water throughout the property when it’s needed.

Question 24

How does a combi boiler work?

Accepted Answer

A combi boiler brings central heating and hot water together in one unit. Water is heated instantly when a tap is turned on and the thermostat signals the boiler to turn on the heating when the temperature drops below a set temperature.

Question 25

What should my boiler pressure be set at?

Accepted Answer

Normal operating water pressure for your boiler & central heating system is between 1.0 and 2.0 bar. Find out how to troubleshoot when the pressure drops.

Question 26

Do I have to have a magnetic boiler filter installed?

Accepted Answer

Fitting a filter is considered best practice when installing a new boiler. The installer must carry out the following steps when a new boiler is fitted...

Question 27

Are Baxi engineers Gas Safe registered?

Accepted Answer

Yes, our nationwide network of Baxi engineers are employed by Baxi and are Gas Safe registered. Find out more...

Question 28

Why is my external condensate pipe freezing?

Accepted Answer

If you're wondering why your condensate pipe keeps freezing, and want to prevent it, read this article

Question 29

What is central heating sludge?

Accepted Answer

Sludge or magnetite if left to build up, can damage the boiler and the heating system. Find out everything you need to know about Sludge here...

Question 30

What is a magnetic boiler filter?

Accepted Answer

Find out everything you need to know about the magnetic boiler filter, how they function, why should the filter be fitted, and how to look after them.

Question 31

What is a Back Boiler?

Accepted Answer

A Back Boiler is a small, compact Boiler fitted at the back of an open fireplace hearth. Find out everything you need to know about the Back Boiler.

Baxi 400 Combi 2.1

Find an Installer

Features and Benefits

Warranty

Fuel types

Ready for winter

Pressure gauge

Smart thermostat

Product Literature

User Guides

User Guides

Product Documentation

Installation & Service Manuals

Installation & Service Manuals

Product Documentation

Energy Labels

Energy Labels

Product Documentation

Dimensions

Related FAQs

Should I turn off my boiler in the summer?

Is a condensing boiler a combi boiler?

Why should I get the water in my central heating system cleaned?

Why should I have a filter fitted?

Find an Installer

Related Products

Save £7,500 with the Boiler Upgrade Scheme

Book a Service

Related Articles

Products

Support

Help & Advice

Important Information