Sometimes the sheer number of different boilers on the market can be daunting for any buyer. We’ve carefully selected some of our favourites and the Baxi 400 Combi series offers just about everything you, as a consumer, could want in a boiler. Its compact size, quiet operation and reliability, backed up by a a great 5 year warranty make it an easy choice.

New Boiler - Baxi 400 series

The Baxi 400 28kW Combi boiler is quiet, compact and lightweight. Installation is simple, offering great versatility for placement anywhere in the property.

The Baxi 400 Combi range offers powerful heating and hot water supply to meet the demands of most property sizes.


  • 28kW output
  • Quietest boiler in the Baxi range
  • Lightweight and compact
  • SEDBUK A rating
  • Efficiency rating A



Width: 395mm
Height: 700mm
Colour: White
Weight: 26kg
Depth: 279mm
Range: 400 Range
ErP Efficiency: 0.89
Product Type: Combi Boiler
Kw: 28
Manufacturer Website:
EAN: 8022945017136
Mounting Location: Wall Hung
Flow Rate: 11.5 l/min
Central Heating Energy Rating: A
Warranty Period: 5 Years
Flue Type: Standard Flue

We know that reliability is important in something as important as your boiler. Debris in your existing system can cause damage to your replacement. So all our new boiler installations include a magnetic filter to clean and protect your investment. Control and energy efficiency are also important, which is why all our installations include a new room thermostat.

* Installation assumes replacing an existing combi boiler in the same location. Additional charges apply where the installation replaces an existing hot water storage system or it needs to be relocated.