Related FAQs

Question 1

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

Accepted Answer

Is your boiler shut down and is showing error code E28, E53, E113, E119 or E128? Find out how to fix this...

Question 2

Can I still replace my old gas Boiler?

Accepted Answer

Yes, you can replace your existing gas boiler but you don’t have to do this before 2025. Find out more at Baxi's FAQ section...

Question 3

How long does a Boiler last?

Accepted Answer

Find answers to how long does a boiler last, when does a boiler need replacing, and how you can make my boiler last longer here...

Question 4

Can I still replace my old gas boiler?

Accepted Answer

Yes, you can replace your existing gas boiler but you don’t have to do this before 2025. Find out more at Baxi's FAQ section...

Question 5

What is the Boiler Upgrade Scheme?

Accepted Answer

Find out everything you need to know about Boiler Upgrade Scheme and if you eligible for the Boiler Upgrade Scheme.

Question 6

Should I turn off my Boiler in the summer?

Accepted Answer

Is it ok to turn off your boiler in summer? The short answer is: it depends on your home and your circumstances. Find out more...

Question 7

Why should I have a filter fitted?

Accepted Answer

Many boiler breakdowns occur are due to sludge in the heating system. Find out the many benefits of fitting a magnetic filter & how it can save you money.

Question 8

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

Accepted Answer

If Boiler breaks down due of sludge in the system, the repair work is not covered by the Boiler warranty & can lead to expensive repair bills. Read more...

Question 9

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 10

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 11

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

Accepted Answer

Find out if there is sludge in my central heating system with these common signs. As the installer to check for sludge during your annual boiler service.

Question 12

Does my Boiler filter need cleaning?

Accepted Answer

Ask your installer to clean your filter while carrying out your annual boiler service. Read more to find out why this is important...

Question 13

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 14

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 15

What are the different types of Boilers?

Accepted Answer

Read about the different types of Boilers, their pros & cons, so you can make an informed decision on what's best for you when you come to replace yours.

Question 16

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 17

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 18

Which Baxi Boiler do I have?

Accepted Answer

Not sure which Baxi boiler you have? Find out by serial number & call Baxi Customer Support on 0330 678 0917. Find out more...

Question 19

How does a combi Boiler work?

Accepted Answer

Combi Boilers are the most popular type of Boiler sold in the UK. Find out how they work, their benefits, and if they are suitable for your home.

Question 20

How does a heat only Boiler work?

Accepted Answer

Heat only boilers are also known as conventional, traditional, open vent or regular boilers. Find out how they work and if they are suitable for your home.

Question 21

How does a System Boiler work?

Accepted Answer

A system boiler, or sealed system, is a great option if you have more than one bathroom or your household has a high demand for hot water.

Question 22

How energy efficient is my Boiler?

Accepted Answer

As one of the biggest costs for householders in the UK, find out how energy efficient your boiler is & how much you can save with a high efficiency model.

Question 23

How often should I have my Boiler serviced?

Accepted Answer

Boiler repairs can be expensive and inconvenient. We advise you have your boiler serviced every year in accordance with the manufacturer’s instructions.

Question 24

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 25

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

Accepted Answer

It depends on if you have a hot water storage cylinder (usually found in the airing cupboard) or combi boiler. Find out more...

Question 26

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.

Question 27

What is a Condensing Boiler?

Accepted Answer

Find out everything you need to know about the Condensing Boiler, and the difference between new and old condensing boilers here...

Question 28

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. Get more guidance here...

Question 29

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 30

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 31

Why is my Boiler pressure low?

Accepted Answer

The pressure on your boiler can go up or down for different reasons. Find out how to adjust it and what to do if your boiler keeps losing pressure...

Question 32

What is Flue Gas Heat Recovery (FGHR)?

Accepted Answer

Find out everything you need to know about Flue Gas Heat Recovery (FGHR) - where are they located, how they work an their benefits.

Question 33

What temperature should my Boiler be set at?

Accepted Answer

Boilers come in all shapes and sizes. If you want to know what temperature should a boiler be set at, take a look at our guide to get a good idea.

Question 34

What do Baxi error codes E23, E53, E113, E119 and E128 mean?

Accepted Answer

Is your boiler shut down and is showing error code E28, E53, E113, E119 or E128? Find out how to fix this...

Baxi 800 System 2

The Baxi 800 System 2 boiler has a 10-year parts and labour warranty* and can be installed with a hot water cylinder, such as the Baxi cylinder or Megaflo Eco.

Features and Benefits

Warranty

Filter included

Smart thermostat

Ready for winter

Fuel types

Pressure gauge

Product Literature

User Guides

User Guides

Baxi 800 System 2

Installation & Service Manuals

Installation & Service Manuals

Baxi 800 System 2

Energy Labels

Energy Labels

Baxi 800 System 2

Dimensions

Related FAQs

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

Can I still replace my old gas Boiler?

How long does a Boiler last?

Can I still replace my old gas boiler?

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