This compact, powerful boiler can be operated using smart controls through an app on your phone or tablet.
*Terms and Conditions apply.
Baxi 600 Combi | 624 Combi | 630 Combi | 636 Combi | |
Sales Code | Boiler only |
7682194 | 7682101 | 7691350 |
Controls |
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User adjustable DHW temperature | Range - 35° to 60° | Yes | Yes | Yes |
User adjustable CH temperature | Range - 25°to 80° | Yes | Yes | Yes |
Temp/status/fault diagnosis display | LCD display | LCD display | LCD display | |
uSense Wired (optional accessory) | 7649277 | Optional | Optional |
Optional |
Integral 24 hr Electro-mechanical timer | No | No | No | |
Wired 24hr Electro-mechanical timer (optional accessory) | 720971401 | Optional | Optional | Optional |
7 Day RF Digital Programmable Room Thermostat (optional accessory) | 720030501 |
Optional | Optional | Optional |
Single Channel Wired Programmable Room Thermostat (optional accessory) | 7212438 |
Optional | Optional | Optional |
Single Channel Wired Timer (optional accessory) |
7212444 | Optional | Optional | Optional |
Wired room Thermostat (optional accessory) | 720971601 | Optional | Optional | Optional |
Wired Outdoor Weather Sensor (optional accessory) |
7686478 | Optional | Optional | Optional |
Baxi iFOS (optional accessory) | 7683084 |
Optional |
Optional |
Optional |
Baxi Easy-Fill | 7665482 |
Yes | Yes | Yes |
Water heating efficiency class | A | A | A | |
Gas | ||||
Natural gas | Yes | Yes | Yes | |
Propane LPG | No | No | No | |
Inlet supply pressure (natural gas) |
mbar (nominal) |
20 | 20 | 20 |
Maximum Gas Rate (G20) Qmax | m3/hr | 2.71 | 3.26 | 3.81 |
NOx | mg/kWh | 31 | 31 | 39 |
NOx class | 5 | 5 | 6 | |
Heat input CH | kW (Max) Gross (QnHs) | 22.9 | 22.9 | 28.6 |
kW (Min) Gross (QnHs) | 6.9 | 6.9 | 7.4 | |
Heat output CH (non condensing) |
kW (Max) (Pn) | 20 | 20 | 25 |
kW (Min) (Pn) |
6.1 | 6.1 | 6.7 | |
Heat output CH (condensing) |
kW (Max) (Pnc) |
21.2 | 21.2 | 26.4 |
kW (Min) (Pnc) | 6.7 | 6.7 | 6.7 | |
Heat input domestic hot water (DHW) |
kW max gross (QnwHs) | 28.6 | 34.3 | 40.8 |
Heat output domestic hot water |
kW max | 25.8 | 30.9 | 36.8 |
SAP 2009 Annual Efficiency (PCDB/SEDBUK) |
89% | 89% | 89% | |
ErP Product Information | ||||
Seasonal Space Heating Energy Efficiency | 93% | 93% | 93% | |
Sound power level, indoors | LWA dB | 47 | 48 | 49 |
Space heating efficiency class | A | A | A | |
Water heating declared load profile | XL | XL | XL | |
Water heating efficiency class | A | A | A | |
Electrical | ||||
Electrical supply | Volts / Hz |
230V / 50Hz |
230V / 50Hz |
230V / 50Hz |
Permanent live required |
Yes | Yes | Yes | |
Electrical cable supplied |
(0.75mm heat resistant flex) | No | No | No |
Power consumption when firing |
Watts |
68 | 80 | 110 |
External fuse rating |
Amps | 3 | 3 | 3 |
Internal fuse rating |
Amps | F2A H250V | F2A H250V |
F2A H250V |
Boiler IP rating (electrical protection) without integral timer fitted |
Approval category | IPX5D | IPX5D | IPX5D |
Circulating pump exercise feature | Yes | Yes | Yes | |
Pump overrun |
Yes | Yes | Yes | |
Integral 'boiler only' frost thermostat |
Yes | Yes | Yes | |
Mechanical | ||||
Hanging Bracket |
Yes | Yes | Yes | |
Isolating valves with pre-formed copper tails |
Yes | Yes | Yes | |
Gas supply pipe size |
(mm) | 22 | 22 | 22 |
Central heating connections |
(mm) | 22 | 22 | 22 |
Domestic Hot Water connections |
(mm) | 15 | 15 | 15 |
Condensate discharge pipe connection |
(mm) | 21.5 | 21.5 | 21.5 |
Safety discharge pipe connection |
(mm) | 15 | 15 | 15 |
Pre-plumbing jig accessory (optional accessory) |
7682545 | Yes | Yes | Yes |
Rear pipework kit (optional accessory) | 7682790 | Yes | Yes | Yes |
Temporary flexible filling loop (optional accessory) |
248221 | Yes | Yes | Yes |
Remote secondary PRV kit (optional accessory) |
5121379 | Yes | Yes | Yes |
Hydraulic | ||||
Maximum DHW flow rate (Delta T @ 35ºC max) | l/min | 10.2 | 12.2 | 15 |
Minimum DHW flow rate required |
l/min | 2 | 2 | 2 |
Minimum operating DHW pressure required |
bar | 0.5 | 0.5 | 0.5 |
Maximum DHW system pressure |
bar | 8 | 8 | 8 |
Safety discharge pressure | bar | 3 | 3 | 3 |
Compartment ventilation required | No | No | No | |
Easy-Fill permanent filling loop supplied |
Yes | Yes | Yes | |
Integral expansion vessel |
7 | 7 | 7 | |
Maximum capacity of CH system | 100 | 100 | 100 | |
Integral automatic bypass |
Yes | Yes | Yes | |
CH System Inhibitor Required |
Yes | Yes | Yes | |
Concentric flue systems |
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Concentric flue diameters |
mm | 60/100 and 80/125 |
60/100 and 80/125 | 60/100 and 80/125 |
Standard telescopic horizontal flue (60/100mm) |
mm | 315-500 | 315-500 | 315-500 |
Standard horizontal flue kit (60/100mm) | mm | 685 | 685 | 685 |
Max equiv length horizontal/vertical (60/100mm) | m | 10 | 10 | 10 |
Max equiv length horizontal/vertical (80/125mm) |
m | 20 | 20 | 20 |
Equivalent length per 135º bend |
m | 0.5 | 0.5 | 0.5 |
Equivalent length per 93º bend |
m | 1 | 1 | 1 |
Weights |
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Installer lift weight (boiler) |
Max (kg) | 29.2 | 29.2 | 30.5 |
Gross packaged boiler weight |
(kg) | 32.5 | 32.5 | 32.2 |
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.
Find a Baxi installer near you for a free quote to install your new boiler.