Layout Curve

Baxi 400 Combi LPG

This Baxi boiler has a great hot water flow rate of 11.5 Ltr/m and comes with a power output of 28kW.

Baxi 400 Combi LPG Compare Boiler Quotes

You don’t need to be connected to the mains gas supply for this heating, and hot water system as this boiler uses the fuel liquefied petroleum gas.

You can buy a uSense smart thermostat to connect with this boiler.

Read on to find out what a uSense is.


What is the Cost of this Boiler?

This boiler price will not include installation fees but does include VAT with a value of £750.

Baxi 400 Combi LPG Compare Boiler Quotes

If you would prefer a boiler including installation fees go to 


Is this Boiler Suitable for My Home?

Your Gas Safe engineer will tell you if this boiler will run your home comfortably and efficiently.

Baxi 400 Combi LPG Compare Boiler Quotes

Combi boilers would not be recommended for homes that require water from more than one tap at once.

This Baxi compact, kitchen cupboard fit is suitable for a home with 1 to 4 bedrooms that struggles for space, does not run more than one tap at once, and is not connected to the mains gas supply.

This boiler uses the fuel, liquefied petroleum gas, not natural gas.


What is the Efficiency of this Boiler?

This boiler is recognised as an A* rated boiler with an efficiency rating of 89%. Baxi 400 Combi LPG Compare Boiler Quotes

The boiler could be used with uSense, which means you can change the temperature, manage your energy usage, and help minimise your energy bills on your Smartphone, Alexa, and Google.


Controls and Accessories for this Boiler:

This boiler comes with optional flue lengths, so you can plan to place the boiler in your desired location. Usually, you would put this boiler in a kitchen cupboard, but it comes with a hanging bracket as another option. An integral frost thermostat is included.

uSense is available to go with this boiler, which gives you the option to change the temperature from your Smartphone, Alexa, or Google wherever you are in the world, which will help your bills and save fuel wastage.

Baxi 400 Combi LPG Compare Boiler Quotes

The Baxi boiler also comes with the usual, LED display which will show is any issues occur and the status of the boiler, a restart button, and the operating start mode selector.


What is the Warranty on this Boiler?

This boiler comes with a lengthy 5-year warranty for labour and parts.

Warranty is valid for peace of mind if any issues occur.

Baxi 400 Combi LPG Compare Boiler Quotes

Always read guidelines to keep the warranty valid. Have your boiler serviced annually.



Baxi 400 Combi Model and Cost

400 Combi LPG 28 Combi H – 700 mm
W – 395 mm
D – 279 mm
11.5 l/min 28 kW 90% AND ABOVE £730


Advantages & Disadvantages

Read below if this boiler seems suitable for your home.


  • Cupboard fit, 290mm. Usually kitchen cupboard
  • Suitable for homes with 1 to 4 bedrooms and one bathroom
  • Does not take up extra space as no other tank or cylinder is required
  • Simple for heating engineers to service and install
  • Environmentally friendly
  • Energy efficient
  • Fits with a uSense smart thermostat – which can be used on a Smartphone, Google or Alexa
  • A valid warranty of 5-years for parts and labour

Baxi 400 Combi LPG Compare Boiler Quotes


  • Which score of 54%


If you would like a boiler quote or any information click here 


Get a fixed price in 20 seconds

What fuel does your boiler use

Compare Quotes >

What our customers think

5 Stars on Trustpilot

Would recommend

Stressed when needed a new boiler but easy process with affordable finance. New boiler installed within a few days with option for next day.

Paul Jones 5 Star on Trustpilot

We were very impressed

On the day, they came on time. Lovely people, they kept everything clean. Explained everything to me. No mess, kept me informed.

Anne Cross 5 Star on Trustpilot

Great Experience

Great experience - quick to arrange, easy to work with the very responsive online team and all installed faster than expected.

Ms Baxter 5 Star on Trustpilot

Layout Curve
Compare new boiler prices in 20 seconds onlineGet Your Quotes >