Baxi 600 Combi 2

Baxi 600 Combi 2 Boiler - Gas Electric Combi Boilers

Combi Boilers

Baxi 600 Combi 2

The Baxi 600 Combi 2 features brass hydraulics and a stainless-steel heat exchanger. The boiler can be manually converted between natural gas or LPG, removing the need to purchase an accessory kit.

Features and Benefits

Multiple outputs

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

Safer and cleaner

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


Colour-coded and removable wiring blocks to save time during installation

Quicker installation

Compatible with internal fit telescopic flue for a safer and quicker one-person fit installation from inside the property


Easy-Fill 2 permanent filling link enabling homeowner self-top up of system pressure to prevent engineer 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

Product Documentation

No documentation available.

Energy Labels

Energy Labels

Baxi 600-800 Combi Boiler 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 Model

Baxi 624 Combi 2

Baxi 630 Combi 2

Baxi 636 Combi 2

Product Code779658677965877796588
Natural gas or LPGYesYesYes
Inlet supply pressure (natural gas) (mbar (nominal))202020
Maximum Gas Rate (G20) Omax (m³ / hr)2.613.263.9
Heat Input CH
kW (max) Gross (OnHs)20.625.725.7
kW (min) Gross (OnHs)
Heat Output CH (non-condensing)
kW (Max) (Pn)202525
kW (Min) (Pn)
Heat Output CH (condensing)
kW (Max) (Pnc)21.827.127.1
kW (Min) (Pnc)
Heat Input domestic hot water (DHW) (kW max gross (OnwHs))27.430.936.9
Heat Output domestic hot water (DHW) (kW max)243036
Water heating efficiency classAAA
Permanent live requiredYesYesYes
External fuse rating (on connection board) (Amps)F0.5A L250VPF0.5A L250VPF0.5A L250VP
Pump overrunYesYesYes
Integral 'boiler only' frost thermostatYesYesYes
Maximum DHW flow rate (Delta T @35'C rise) (l/min)
Minimum DHW flow rate required (l/min)222
Minimum operating DHW pressure required (bar)
Integral expansion vessel - Size (litres)777
Maximum capacity of the CH system (litres)100100100
Integral automatic bypassYesYesYes
Installer Lift Weight (kg)282930

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More Information

Baxi combi Boiler - deconstructed

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