Baxi Megaflo System Boiler
The Baxi Megaflo System Boiler Is The Perfect Choice For Homes With A High Demand For Hot Water. It Has Easy To Use Controls And Is Backed By A 7 Year Warranty, Giving You Peace Of Mind. Find Out More Online.
- Features
- Dimensions
- 7 year parts and labour warranty*
- Built in the UK using top quality brass components
- Compatible with market-leading Megaflo Eco cylinder
- Boiler width = 450mm
- Boiler height = 780mm
- Boiler depth = 345mm
- Side clearance = 5mm
- Upper clearance = 200mm
- Lower clearance = 150mm
- Front clearance = 5mm in operation, 450mm for servicing
Installer Information
Technical Features
- 15, 18, 24, 28 and 32 kW
- Full wall mounting jig
- Choice of flue lengths
- Easy to install and service
- 1 metre lead provided
- Boiler plus compliant - Find out more
Dimensions
- Boiler width = 450mm
- Boiler height = 780mm
- Boiler depth = 345mm
- Side clearance = 5mm
- Upper clearance = 200mm
- Lower clearance = 150mm
- Front clearance = 5mm in operation, 450mm for servicing
Technical Data Table
| Baxi Megaflo System | 15 System | 18 System | 24 System | 28 System | 32 System | |
| Sales code | 7219444 | 7219445 | 7219446 | 7219447 | 7219448 | |
| Controls | ||||||
| Concealed user controls | Yes | Yes | Yes | Yes | Yes | |
| On/off switch with reset | Yes | Yes | Yes | Yes | Yes | |
| User adjustable CH temperature | Yes | Yes | Yes | Yes | Yes | |
| LED temp / status / fault diagnosis display |
2 digits / 3 LEDs on all models |
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| Gas | ||||||
| Gas supply connection | mm | 22 | 22 | 22 | 22 | 22 |
| Natural gas | Yes | Yes | Yes | Yes | Yes | |
| Nominal inlet supply pressure | mbar | 20 | 20 | 20 | 20 | 20 |
| Maximum inlet supply pressure | m3/hr | 1.69 | 1.95 | 2.61 | 3.1 | 3.48 |
| Heat input central heating | kW max gross (QnHs) | 17.1 | 20.5 | 27.4 | 32.1 | 36.4 |
| kW min gross (QnHs) | 4.4 | 4.8 | 7.8 | 10.8 | 10.8 | |
| Heat output CH non condensing | kW max (Pn) | 15 | 18 | 24 | 28 | 32 |
| kW min (Pn) | 3.9 | 4.2 | 6.8 | 9.4 | 9.4 | |
| Heat out CH condensing | kW max (Pnc) | 16.2 | 19.4 | 25.9 | 30.3 | 34.4 |
| kW min (Pnc) | 4.2 | 4.5 | 7.4 | 10.2 | 10.2 | |
| SAP 2009 Annual Efficiency (PCDB/SEDBUK) | % | 88.6 | 88.6 | 88.6 | 88.5 | 88.5 |
| NOx class | 5 | 5 | 5 | 5 | 5 | |
| ErP Product Information | ||||||
| NOx | mg/kWh | 25 | 29 | 20 | 20 | 24 |
| Sound power level, indoors | Lwa dB | 52 | 53 | 58 | 53 | 54 |
| Space heating efficiency class | A | A | A | A | A | |
| Electrical | ||||||
| Electrical supply | Volts/Hz | 230V/50hz | 230V/50hz | 230V/50hz | 230V/50hz | 230V/50hz |
| Permanent live required | Yes | Yes | Yes | Yes | Yes | |
| Fitted electrical cable |
1m x 3 core x 0.75mm2 on all models |
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| Power consumption | Watts | 130 | 140 | 150 | 160 | 160 |
| External fuse rating | Amps | 3 | 3 | 3 | 3 | 3 |
| Internal fuse rating | Amps | F2L | F2L | F2L | F2L | F2L |
| Ingress protection rating (without electro-mechanical timer fitted) |
IPX 5D | IPX 5D | IPX 5D | IPX 5D | IPX 5D | |
| 24 hour pump exercise | Yes | Yes | Yes | Yes | Yes | |
| Pump overrun | Yes | Yes | Yes | Yes | Yes | |
| Integral 'boiler only' frost thermostat | Yes | Yes | Yes | Yes | Yes | |
| Mechanical and hydraulic | ||||||
| Compartment ventilation requirement | None | None | None | None | None | |
| Pre-plumbing / wall mounting jig | Yes | Yes | Yes | Yes | Yes | |
| Flow and return pipe size | mm | 22 | 22 | 22 | 22 | 22 |
| Condensate discharge pipe size | mm | 21.5 | 21.5 | 21.5 | 21.5 | 21.5 |
| Integral automatic bypass | Yes | Yes | Yes | Yes | Yes | |
| Safety discharge pressure | bar | 3 | 3 | 3 | 3 | 3 |
| Integral expansion vessel | litres | 8 | 8 | 8 | 10 | 10 |
| Max capacity of central heating system | litres | 125 | 125 | 125 | 125 | 125 |
| CH system inhibitor required | Yes | Yes | Yes | Yes | Yes | |
| Concentric Flue System | ||||||
| Standard horizontal flue kit length | mm | 685 | 685 | 685 | 685 | 685 |
| Max equiv length horizontal / vertical (60/100mm) | m | 10 | 10 | 10 | 10 | 10 |
| Max equiv length horizontal / vertical (80/125mm) | m | 20 | 20 | 20 | 20 | 20 |
| Equivalent length per 135o bend | m | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Equivalent length per 93o bend | m | 1 | 1 | 1 | 1 | 1 |
| Twin pipe flue system | ||||||
| Diameters | mm | 80/80 | 80/80 | 80/80 | 80/80 | 80/80 |
| Max equiv length horizontal / vertical (parallel pipes) | m | 15/15 | 15/15 | 15/15 | 15/15 | 15/15 |
| Equivalent length per 135o bend | m | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 |
| Equivalent length per 91.5o bend | m | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
| Weights | ||||||
| Max installation lift weight | kg | 36.4 | 36.4 | 37.9 | 37.9 | 38.4 |
| Gross packaged boiler weight | kg | 41.5 | 41.5 | 43 | 43 | 43.5 |
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.
