Baxi 800 Combi
Our Baxi 800 comes with a 10 year warranty for total peace of mind.
- Features
- Dimensions
- 10 year parts and labour warranty*
- Built in the UK using top quality brass components
- Comes with an Adey Micro2 magnetic system filter to protect the heating system and boiler
- Fits inside a standard kitchen cupboard
- EasyFill makes it easy to top up the central heating system pressure without the need to call an engineer
*Terms and Conditions apply.
- Boiler width = 390mm
- Boiler height = 700mm
- Boiler depth = 285mm
- Side clearance = 5mm
- Upper clearance = 178mm
- Lower clearance = 200mm
- Front clearance = 5mm in operation, 450mm for servicing
Installer Information
Technical Features
- 25kW, 30kW and 36kW
- Compact cupboard fit
- Only 29.2kg lift weight
- Includes Adey Micro2 Magnetic System filter
- Brass hydraulics block
- Built in stand off frame
- Easy-fill permanent filling link makes it easier for householder to top up system
- Optional uSense smart control
- OpenTherm interface
- IFOS compatible
- Extensive flue options up to 20 metres
- Simple hanging bracket
Dimensions
- Boiler width = 390mm (32 model 450mm)
- Boiler height = 700mm (32 model 763mm)
- Boiler depth = 285mm (32 model 345mm)
- Side clearance = 5mm
- Upper clearance = 178mm
- Lower clearance = 200mm
- Front clearance = 5mm in operation, 450mm for servicing
Technical Data Table
| Baxi 825 Combi | Baxi 830 combi | Baxi 836 Combi | ||
| Sales Code | Boiler Only | 7732189 | 7731874 | 7731705 |
| Controls and accessories | ||||
| User adjustable DHW temperature | Range - 30'C to 60'C | Yes | Yes | Yes |
| User adjustable CH temperature | Range - 25'C to 80'C | 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 (optional accessory) | N/A | N/A | N/A | |
| Wired 24 hr Electro-mechanical timer (optional accessory) | 720971401 | Optional | Optional | Optional |
| 7 day RF Digital Programmable Room Thermostat (optional accessory) | 720030501 | Optional | Optional | Optional |
| Single Channel WiredProgrammable 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 |
| Multifit Twin Channel Wired Programmer (optional accessory) | 7212443 | N/A | N/A | N/A |
| Multifit IFOS weather compensation (optional accessory) | 7724181 | Optional | Optional | Optional |
| Multifit IFOS Extension (optional accessory) | 7724260 | Optional | Optional | Optional |
| Multifit IFOS System (optional accessory) | 7729979 | N/A | N/A | N/A |
| Ridge Tile IFOS (optional accessory) | 7729943 | Optional | Optional | Optional |
| Baxi Easy-fill Permenant Filling Link | 7665482 | Yes | Yes | Yes |
| Gas | ||||
| Natural gas | Yes | Yes | Yes | |
| Propane LPG | N/A | N/A | N/A | |
| Inlet supply pressure (natural gas) | mbar (nominal) | 20 | 20 | 20 |
| Maximum Gas Rate (G20) Qmax | m3/hr | 2.71 | 3.26 | 3.81 |
| N0x | mg/kWh | 31 | 31 | 39 |
| N0x Class | 6 | 6 | 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 (DHW) | kW max | 25 | 30 | 36 |
| ErP Product Information | ||||
| Seasonal Space Heating Energy Efficiency | 93% | 93% | 93% | |
| Sound Power Levels, indoors | lWA dB | 48 | 48 | 51 |
| 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 | 230 / 50 | 230 / 50 | 230 / 50 |
| Permanent Live Required | Yes | Yes | Yes | |
| Electrical Cable Supplied | (0.75mm heat resistant flex) | No | No | No |
| Power consumption when firing | Watts | 68 | 78 | 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 fixed | Approval category | IPX5D | IPX5D | IPX5D |
| Circulating pump exercise feature | Yes | Yes | Yes | |
| Pump Overun | 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 Connection | (mm) | 22 | 22 | 22 |
| Central Heating Connections | (mm) | 22 | 22 | 22 |
| Domestic Hot Water Connections | (mm) | 15 | 15 | 15 |
| Condense Discharge Pipe Connections | (mm) | 21.5 | 21.5 | 21.5 |
| Safety DischargePipe Connections | (mm) | 15 | 15 | 15 |
| Pre-Plumb Jig (optional accessory) | 7682545 | Optional | Optional | Optional |
| Rear Pipework Kit (optional accessory) | 7682790 | Optional | Optional | Optional |
| Remote Secondary PRV kit (optional accessory) | 5121379 | Optional | Optional | Optional |
| Hydraulic | ||||
| Maximum DHW flow rate (Delta T @ 35'C rise) | l/min | 10.2 | 12.2 | 15.0 |
| 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 | |
| Integral Expansion Vessel | Size (litres) | 7 | 7 | 7 |
| Maximum Capacity of CH System | Litres | 100 | 100 | 100 |
| Integral Automatic Bypass | Yes | Yes | Yes | |
| CH System Inhibitor Required | Yes | Yes | Yes | |
| Concentric flue systems | ||||
| Concentric Flue Diameters | (mm) | 60/100 and 80/125 |
60/100 and 80/125 |
60/100 and 80/125 |
| Standard telescopic horizontal flue (60/100) | (mm) | 315 - 500 | 315 - 500 | 315 - 500 |
| Standard horizontal flue kit (60/100) | (mm) | 685 | 685 | 685 |
| Max equiv length horizontal / vertical (60/100) | m | 10 | 10 | 10 |
| Max equiv length horizontal / vertical (80/125) | m | 20 | 20 | 20 |
| Equivalent length per 135' bend | m | 0.5 | 0.5 | 0.5 |
| Equivalent length per 93' bend | m | 1 | 1 | 1 |
| Weights | ||||
| Installer Lift Weight (boiler) | (kg) | 29.2 | 29.2 | 30.2 |
| Gross packaged boiler weight | (kg) | 35 | 35 | 35 |
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.
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