Baxi 400 Heat

The Baxi 400 Heat has the option of a top or rear flue, making it an easy replacement for old standard efficiency boilers.

  • Features
  • Dimensions
Baxi 400 Heat
  • Boiler width = 370mm
  • Boiler height = 625mm
  • Boiler depth = 270mm
  • Side clearance = 5mm
  • Upper clearance = 190mm
  • Lower clearance = 120mm
  • Front clearance = 5mm in operation, 500mm for servicing

Installer Information

Technical Features

  • 12, 15, 18, 24 and 30kW
  • Top or rear flue
  • No pump overrun needed
  • Wall mounting plate
  • Front and side access for easy installation and service
  • Choice of flue lengths
  • Boiler Plus compliant - Find out more

Dimensions

Baxi 400 Heat
  • Boiler width = 370mm
  • Boiler height = 625mm
  • Boiler depth = 270mm
  • Side clearance = 5mm
  • Upper clearance = 190mm
  • Lower clearance = 120mm
  • Front clearance = 5mm in operation, 500mm for servicing

Technical Data Table

Baxi 400 Heat 12 15 18 24 30
Sales code Boiler only 7668931 7668933 7668934 7668935 7668936
Controls
Operating mode selector switch with reset Yes/no Yes Yes Yes Yes Yes
User adjustable CH temperature Range - e.g. 30ºC to 80ºC (+/- 5ºC) Yes Yes Yes Yes Yes
LED status/fault diagnosis display Yes/no Yes Yes Yes Yes Yes
Gas
SAP 2009 Annual Efficiency (PCDB/SEDBUK)  % 89.2 89.2 89.2 89.1 89.1 
NOx class 1-5 5 5 5 5 5
ErP Product Information
NOx  mg/kWh    18 20  21  23  24 
Sound Power Level, Indoors  LWA dB  32  33  34  35  37 
Space Heating Efficiency Class  
Heat Input CH kW max gross (QnHs)  14.88  18.32  21.75  28.62  34.35 
kW min gross (QnHs) 8.59  8.59  8.59  8.59  8.59 
Heat Output CH (non condensing)  kW max (Pn) 13 16 19 25 30
kW min (Pn) 7.5 7.5 7.5 7.5 7.5
Gas supply pipe size (mm) 22 22 22 22 22
Inlet supply pressure (natural gas) mbar 20 20 20 20 20
Maximum gas rate m3/hr 1.42 1.75 2.07 2.73 3.27
Mechanical and hydraulic
Compartment ventilation required No No No No No
Flow / return pipe size (mm) 22 22 22 22 22
Condensate discharge pipe (mm) 21.50 21.50 21.50 21.50 21.50
Electrical
Electrical supply Volts / Hz 230V/ 50Hz 230V/ 50Hz 230V/ 50Hz 230V/ 50Hz 230V/ 50Hz
Permanent live required Yes/no No No No No No
Switched live Yes/no Yes Yes Yes Yes Yes
Electrical power cable fitted as standard 1m of 3 core Yes Yes Yes Yes Yes
Power consumption Watts 17 20 23

33

44
External fuse rating Amps 3 3 3 3 3
Internal fuse rating 1.6T 1.6T 1.6T 1.6T 1.6T
Boiler IP rating (electrical protection) Approval category IPX4D IPX4D IPX4D IPX4D IPX4D
Pump overrun Yes/no No No No No No
Concentric flue system
Standard telescopic concentric flue Length in mm 315-500 315-500 315-500 315-500 315-500
Standard in-case rear telescopic concentric flue Length in mm 220-345 220-345 220-345 220-345 220-345
Horizontal concentric (60/100mm) Max equivalent length (m) 6 6 6 6 6
Reduction per 135º bend (m) 0.5 0.5 0.5 0.5 0.5
Reduction per 93º bend (m) 1 1 1 1 1
Horizontal concentric (80/125 mm) Max equivalent length (m) 12 12 12 12 12
Reduction per 93º bend (m) 1 1 1 1 1
Weight
Installer lift weight Max (kg) 19.5 19.5 19.5 19.5 19.5
Gross packaged boiler weight (kg) 21.5 21.5 21.5 21.5 21.5

Product Training

We offer product training at our training centres across the UK for installers who want to get hands-on with Baxi boilers.


From construction and installation to functions and features, our expert trainers will give you a complete understanding of working with Baxi boilers.

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