Baxi 400 Combi 2
Compact and lightweight, the Baxi 400 Combi 2 boiler can be installed in a convenient safe place in your home.
- Features
- Dimensions
- 5 year parts and labour warranty*
- Available in a 24kW & 30kW LPG for off mains gas dwellings
- Highly efficient - could save money on fuel bills
- Brass hydraulics
*Terms and Conditions apply.
- Boiler width = 395mm
- Boiler height = 700mm
- Boiler depth = 285mm
- Side clearance = 2.5mm
- Upper clearance = 240mm
- Lower clearance = 250mm
- Front clearance = 5mm in operation (1000mm for servicing)
Installer Information
Technical Features
- 24kW, 30kW and 24kW LPG and 30kW LPG
- Brass hydraulics
- Optional stand-off frame
- Simple hanging bracket to fit quickly and easily on uneven walls
- Lightweight, under 30kg lift weight for easier installation
- Top central flue position
- Stainless steel heat exchanger, lightweight and heats water effectively
- Internal pressure gauge
- Combined PRV and drain
- Compatible with OpenTherm
- Connectable boiler ready*
* Compatible with future connected services
Dimensions
- Boiler width = 395mm
- Boiler height = 700mm
- Boiler depth = 285mm
- Side clearance = 2.5mm
- Upper clearance = 240mm
- Lower clearance = 250mm
- Front clearance = 5mm in operation (1000mm for servicing)
Technical Data Table
| Technical Table | Baxi 424 Combi 2 | Baxi 424 Combi LPG 2 |
Baxi 430 Combi 2 | Baxi 430 Combi LPG 2 |
|
| Sales Code | 7790614 | 7790616 | 7790615 | 7790617 | |
| Controls | |||||
| Concealed User Controls | No | No | No | No | |
| User Adjustable DHW temperature | Range - 35° to 60° (+- 5C) | Yes | Yes | Yes | Yes |
| User Adjustable CH temperature | Range - 25° to 80° (+- 5C) | Yes | Yes | Yes | Yes |
| Temperature / Fault Diagnosis Display | Yes | Yes | Yes | Yes | |
| Baxi Mechanical 24hr Timer Kit (Surface Mount) | 720971401 | Optional | Optional | Optional | Optional |
| Baxi Room Thermostat | 720971601 | Optional | Optional | Optional | Optional |
| Single Channel Wired Programmer | 7212444 | Optional | Optional | Optional | Optional |
| Single Channel Wired Programmable Room Room Thermostat | 7212438 | Optional | Optional | Optional | Optional |
| 24 hr Wireless Programmable Room Thermostat | 5117391 | Optional | Optional | Optional | Optional |
| Baxi Combi Wireless 7 Day Programmable Room Stat | 720030501 | Optional | Optional | Optional | Optional |
| Multifit IFOS - Combi | 7724181 | Optional | Optional | Optional | Optional |
| Multifit IFOS - Extension | 7724260 | Optional | Optional | Optional | Optional |
| Multifit IFOS - Ridge Tile | 7729943 | Optional | Optional | Optional | Optional |
| Multifit Filling Loop | 248221 | Optional | Optional | Optional | Optional |
| Multifit Easy-Fill | 7665482 | Optional | Optional | Optional | Optional |
| Stand Off Kit - 200 - 400 Combi 2 | 7813585 | Optional | Optional | Optional | Optional |
| Remote Secondary PRV Kit | 5121379 | Optional | Optional | Optional | Optional |
| Multifit External Boiler Discharge Pump (PRV & Condensate) | 720648301 | Optional | Optional | Optional | Optional |
| Gas | |||||
| Natural gas | Yes | No | Yes | No | |
| Propane LPG | No | Yes | No | Yes | |
| Inlet supply pressure (natural gas) | mbar (nominal) | 20 | - | 20 | - |
| Maximum Gas Rate (G20) Qmax | m³ / hr | 2,61 | - | 3,17 | - |
| Heat Input CH | kW (max) Gross (QnHs) | 22,9 | 22,9 | 22,9 | 22,9 |
| kW (min) Gross (QnHs) | 5,4 | 5,4 | 6,7 | 6,7 | |
| Heat Output CH (non-condensing) | kW (Max) (Pn) | 20 | 20 | 20 | 20 |
| kW (Min) (Pn) | 4,8 | 4,8 | 5,8 | 5,8 | |
| Heat Output CH (condensing) | kW (Max) (Pnc) | 21,8 | 21,8 | 21,8 | 21,8 |
| kW (Min) (Pnc) | 5,2 | 5,2 | 6,3 | 6,3 | |
| Heat Input domestic hot water (DHW) | kW max gross (QnwHs) | 27,4 | 27,4 | 33,3 | 33,3 |
| Heat output domestic hot water (DHW) | kW max | 24 | 24 | 29,1 | 29,1 |
| Water heating efficiency class | A | A | A | A | |
| Electrical | |||||
| Permanent live required | Yes | Yes | Yes | Yes | |
| External fuse rating | Amps | 3 | 3 | 3 | 3 |
| Pump overrun | Yes | Yes | Yes | Yes | |
| Integral 'boiler only' frost thermostat | Yes | Yes | Yes | Yes | |
| Hydraulic | |||||
| Maximum DHW flow rate (Delta T @ 35'C rise) | l/min | 9,8 | 9,8 | 11,9 | 11,9 |
| Minimum DHW flow rate required | l/min | 2 | 2 | 2 | 2 |
| Minimum operating DHW pressure required | bar | 0,15 | 0,15 | 0,15 | 0,15 |
| Integral expansion vessel | Size (litres) | 7 | 7 | 7 | 7 |
| Maximum capacity of the CH system | Litres | 120 | 120 | 120 | 120 |
| Integral automatic bypass | Yes | Yes | Yes | Yes | |
| Weights | |||||
| Installer Lift Weight | (kg) | 28 | 28 | 29 | 29 |
Technical Literature
Product Training
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.
