Baxi 624 Combi 2 - Combi Boiler - 7796586

Baxi 600 Combi 2

The Baxi 600 Combi 2 is compact, simple to use and comes with a seven-year parts and labour warranty†.

The Easy-Fill permanent filling link makes it easy when you need to top up the pressure, without having to call out an engineer. It is compatible with the Baxi uSense smart control that can be operated using a smart phone or tablet.

Easy top up

EasyFill makes it easy to top up the central heating system pressure without having to call an engineer

Warranty

7-year parts and labour warranty for peace of mind†

Smart thermostat

Compatible with Baxi uSense smart thermostat, which you can control using an app on your phone

Fuel types

Works with natural gas or LPG, without a conversion kit

Ready for winter

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

Pressure gauge

External analogue pressure gauge for easy self-top up, reducing the need for engineer call outs

Dimensions

• A: Boiler width = 395mm
• B: Boiler height = 700mm
• C: Boiler depth = 285mm
• D: Side clearance = 2.5mm
• E: Upper clearance = 178
• F: Lower clearance = 150
• G: Front clearance = 5mm in operation (450mm for servicing)

Technical Specification

Product Model	624 Combi 2	630 Combi 2	636 Combi 2
Product Code	7796586	7796587	7796588
Gas
Natural gas or LPG	Yes	Yes	Yes
Inlet supply pressure (natural gas) (mbar (nominal))	20	20	20
Maximum Gas Rate (G20) Omax (m³ / hr)	2.61	3.26	3.9
Heat Input CH
kW (max) Gross (OnHs)	20.6	25.7	25.7
kW (min) Gross (OnHs)	4.9	6	7.2
Heat Output CH (non-condensing)
kW (Max) (Pn)	20	25	25
kW (Min) (Pn)	4.8	5.8	7.2
Heat Output CH (condensing)
kW (Max) (Pnc)	21.8	27.1	27.1
kW (Min) (Pnc)	5.2	6.3	7.6
Heat Input domestic hot water (DHW) (kW max gross (OnwHs))	27.4	30.9	36.9
Heat Output domestic hot water (DHW) (kW max)	24	30	36
Water heating efficiency class	A	A	A
Electrical
Permanent live required	Yes	Yes	Yes
External fuse rating (on connection board) (Amps)	F0.5A L250VP	F0.5A L250VP	F0.5A L250VP
Pump overrun	Yes	Yes	Yes
Integral 'boiler only' frost thermostat	Yes	Yes	Yes
Hydraulic
Maximum DHW flow rate (Delta T @35'C rise) (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
Integral expansion vessel - Size (litres)	7	7	7
Maximum capacity of the CH system (litres)	100	100	100
Integral automatic bypass	Yes	Yes	Yes
Weights
Installer Lift Weight (kg)	28	29	30