Baxi 400 Combi 2.1

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  2. Baxi 400 Combi 2.1
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Combi Boilers

Baxi 400 Combi 2.1

Extremely quiet, compact and lightweight, the Baxi 400 Combi 2.1 boiler can be installed virtually anywhere in your home.

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Features and Benefits

Warranty

5-year parts and labour warranty for peace of mind†

Fuel types 

Works with natural gas or LPG, without a conversion kit

Ready for winter

Pre-heated condensate trap to help prevent freezing in winter – less risk of frozen condensate pipes!

Pressure gauge

External analogue pressure gauge for easy self-top up, reducing the need for engineer call outs

Smart thermostat

Compatible with Baxi uSense smart thermostat, which you can control using an app on your phone
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Product Literature

User Guides

User Guides

Installation & Service Manuals

Installation & Service Manuals

Energy Labels

Energy Labels

Baxi b-basic-dimensions

Dimensions

A: Boiler width = 395mm

B: Boiler height = 700mm

C: Boiler depth = 285mm

D: Side clearance = 2.5mm

E: Upper clearance = 178mm

F: Lower clearance = 150mm

G: Front clearance = 5mm in operation (450mm for servicing)

Related FAQs

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

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

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Can I still replace my old gas Boiler?

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...

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How long does a Boiler last?

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...

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Can I still replace my old gas boiler?

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...

Read more
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Find an Installer

Simply enter your postcode and find a local, trained, Gas Safe registered (where applicable) engineer to give you a free, no-obligation quote on a new boiler, cylinder or air source heat pump installation.

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Related Products

Save £7,500 with the Boiler Upgrade Scheme

If you are upgrading your heating system, have you considered installing an air source heat pump? Right now, you could be eligible for a grant of £7,500 to help with the installation cost.

Book a Service

We are here to provide peace of mind for all your servicing needs.

Rest assured your service will be carried out by a qualified Gas Safe engineer, providing you with the best ongoing appliance care for your home heating system.

We offer servicing for boilers, filters, cylinders, air source heat pumps and more.

Baxi at Home Blog