Baxi 400 Combi 2.1

Baxi 400 combi 2-1 Boiler - thumbnail

Combi Boilers

Baxi 400 Combi 2.1

The Baxi 400 Combi 2.1 has a 5-year parts and labour warranty† is lightweight, contains brass hydraulics and a stainless steel heat exchanger.

Features and Benefits

Multiple outputs

Available in outputs of 24, 30 and 36kW, natural gas or LPG manual conversion

Safer and cleaner

Combined PrV with separate drain to facilitate a safer and quicker boiler drain down for repair

Robust components

Brass hydraulics and stainless steel heat exchanger for peace of mind

Ready for winter

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

Quicker installation

Compatible with Baxi Easy-Flue for a safer and quicker one-person fit installation from inside the property

Pressure gauge

External analogue pressure gauge for easy self-top up, to help prevent call outs
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Product Literature

Installation and Service Manuals

Installation and Service Manuals

User Guides

User Guides

Specification Guides

Specification Guides

Product Documentation

No documentation available.

Product Fiche

Product Fiche

Energy Labels

Range Guide

Range Guide

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)

Technical Specification

Product Model424 Combi 2.1430 Combi 2.1436 Combi 2.1
Product Code787283578728367872837
Gas
Natural gas or LPGYesYesYes
Inlet supply pressure (natural gas) (mbar (nominal))202020
Maximum Gas Rate (G20) Qmax (m³ / hr)2.613.263.9
Heat Input CH (kW (max) Gross (QnHs))20.625.725.7
Heat Input CH (kW (min) Gross (QnHs))4.96.07.2
Heat Output CH (non-condensing) (kW (Max) (Pn))202525
Heat Output CH (non-condensing) (kW (Min) (Pn))4.85.87.2
Heat Output CH (condensing) (kW (Max) (Pnc))21.827.127.1
Heat Output CH (condensing) (kW (Min) (Pnc))5.26.37.6
Heat Input domestic hot water (DHW) (kW max gross (QnwHs))27.430.936.9
Heat output domestic hot water (DHW) (kW max)243036
Water heating efficiency classAAA
Electrical
Permanent live requiredYesYesYes
External fuse rating (on connection board) (Amps)F0.5A L250VPF0.5A L250VPF0.5A L250VP
Pump overrunYesYesYes
Integral 'boiler only' frost thermostatYesYesYes
Hydraulic
Maximum DHW flow rate (Delta T @ 35'C rise) (l/min)10.212.215.0
Minimum DHW flow rate required (l/min)222
Minimum operating DHW pressure required (bar)0.50.50.5
Integral expansion vessel (Size (litres))777
Maximum capacity of the CH system (Litres)100100100
Integral automatic bypassYesYesYes
Weights
Installer Lift Weight (kg)282930

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