Heat Only Boilers

Baxi 400 Heat

The Baxi 400 Heat has no need for a pump overrun or permanent live to save time during installation.

This boiler can be installed on open vent or sealed systems and has an optional in-case rear flue for a neater installation.

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Features and Benefits
Product Literature
Dimensions
Technical Specification

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Features and Benefits

Multiple outputs

Available in outputs of 15, 18, 24 and 30kW

Lightweight

Only 17.4kg installer lift weight

Secure

Easy-fit wall mounting bracket featuring a positive fix and audible lock, so you know it’s secure

Easy installation

1-metre lead included, allowing easy installation and removes the need to access the control box

Flexible

Top central or optional in-case rear flue giving flexibility to site

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Product Literature

Installation & Service Manuals

User Guides

Technical Specifications

Product Fiche

Energy Labels

Dimensions

A: Boiler Width = 370mm

B: Boiler Height = 625mm

C: Boiler Depth = 270mm

D: Side Clearance = 5mm

E: Upper Clearance = 190mm

F: Lower Clearance = 120mm

G: Front Clearance = 5mm in operation (500mm for servicing)

Technical Specification

Product Model	15kW	18kW	24kW	30kW
Product Code	7668933	7668934	7668935	7668936
Controls
Operating mode selector switch with reset (Yes/No)	Yes	Yes	Yes	Yes
User adjustable CH temperature -Range - e.g. 30ºC to 80ºC (+/- 5ºC)	Yes	Yes	Yes	Yes
LED status/fault diagnosis display (Yes/nNo)	Yes	Yes	Yes	Yes
Gas
SAP 2009 Annual Efficiency (PCDB/SEDBUK) %	89.2	89.2	89.1	89.1
NOx class (1-5)	5	5	5	6
ErP Product Information
NOx (mg/kWh)	20	21	23	21
Sound Power Level, Indoors (LWA dB)	33	34	35	49
Space Heating Efficiency Class	A	A	A	A
Heat Input CH -kW max gross (QnHs)	18.32	21.75	28.62	34.35
Heat Input CH - kW min gross (QnHs)	8.59	8.59	8.59	8.59
Heat Output CH (non condensing) - kW max (Pn)	16	19	25	30
Heat Output CH (non condensing) - kW min (Pn)	7.5	7.5	7.5	10.1
Gas supply pipe size (mm)	22	22	22	22
Inlet supply pressure (natural gas) - mbar	20	20	20	20
Maximum gas rate (m3/hr)	1.75	2.07	2.73	3.27
Mechanical and hydraulic
Compartment ventilation required	No	No	No	No
Flow / return pipe size (mm)	22	22	22	22
Condensate discharge pipe (mm)	21.5	21.5	21.5	21.5
Electrical
Electrical supply - Volts/Hz	230V/50Hz	230V/50Hz	230V/ 50Hz	230V/ 50Hz
Permanent live required (Yes/No)	No	No	No	No
Switched live (Yes/No)	Yes	Yes	Yes	Yes
Electrical power cable fitted as standard (1m of 3 core)	Yes	Yes	Yes	Yes
Power consumption (Watts)	20	23	33	44
External fuse rating (Amps)3	3	3		3
Internal fuse rating	1.6T	1.6T	1.6T	1.6T
Boiler IP rating (electrical protection) -Approval category	IPX4D	IPX4D	IPX4D	IPX4D
Pump overrun (Yes/No)	No	No	No	No
Concentric flue system
Standard telescopic concentric flue (Length in mm)	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
Horizontal concentric (60/100mm) - Max equivalent length (m)	6	6	6	6
Horizontal concentric (60/100mm) - Reduction per 135º bend (m)	0.5	0.5	0.5	0.5
Horizontal concentric (60/100mm) - Reduction per 93º bend (m)	1	1	1	1
Weight
Installer lift weight -Max (kg)	17.4	17.4	17.4	19.5
Gross packaged boiler weight (kg)	21.5	21.5	21.5	21.5

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Baxi Genuine Parts

Whether you are working on an installation, repair or service, Baxi Genuine Parts are guaranteed for quality, reliability and safety. Start here to find the parts you need.

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Product Training

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Error Codes for Baxi Boilers

If a boiler develops a problem, it will display an error code. We explain the most common error codes here.

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