Baxi Platinum Combi

Reliable and easy-to-install, the Baxi Platinum Combi is a firm favourite with householders and installers alike. It is highly efficient with a SEDBUK (2005) Band A rating for energy efficiency.

To show how confident we are in our top of the range combi boiler, the Baxi Platinum Combi comes with an impressive 10 year warranty when installed before 31st December 2015*.


Platinum Combi HE A
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  • Extra peace of mind with an exceptional ten year warranty*
  • Save energy and money. The Baxi Platinum is highly efficient and SEDBUK 2005 Band A (>90%) rated
  • Available in outputs of 24kW, 28kW, 33kW and 40kW so there is a model to suit most sizes and styles of property
  • Exceptional hot water flow rate of up to 16.4 litres per minute for increased comfort and convenience
  • Experience greater reliability as the boiler adapts output to demand without switching on and off
  • Includes easy to use built-in mechanical clock and filling loop

The warranty card found in the box of the boiler may state a shorter warranty period than described above. In order to qualify for the 10 year warranty, please discard the card and ask your installer to register the boiler online.

*Terms and conditions apply

Platinum clearance diagram

A: Boiler width = 450mm

B: Boiler height = 780mm

C: Boiler depth = 345mm

D: Side clearance = 5mm

E: Upper clearance = 200mm

F: Lower clearance = 150mm

G: Front clearance = 5mm in operation, 450mm for servicing

  • Easy to install and maintain - comes with a pre-plumbing jig, complete with pre-formed copper pipe tails, built in filling loop and 1 metre mains cable to save the installer time and money during installation
  • Built in frost thermostat, making it easier to site in garages and lofts
  • Compatible with Multifit flue kits, which provide an industry leading choice of lengths, bends and accessories, allowing for versatile siting
  • High quality brass hydraulics and easy access for servicing means the Baxi Platinum Combi is a firm favourite with installers
  • Free of charge Baxi product training throughout the UK
  • Free Gas Safe notification and warranty registration online, saving you time and money on any Baxi boiler you install through the works loyalty scheme
Baxi Platinum Combi ErP 24kW 28kW 33kW 40kW
Concealed User Controls Yes Yes Yes Yes
On/Off Switch with Reset Yes Yes Yes Yes
User Adjustable DHW Temperature Yes Yes Yes Yes
User Adjustable CH Temperature Yes Yes Yes Yes
LED Temp/Status/Fault Diagnosis Display 2 digits/3 LEDs 2 digits/3 LEDs 2 digits/3 LEDs 2 digits/3 LEDs
Integral 24 hour Electro-mechanical Timer Fitted as standard Fitted as standard Fitted as standard Fitted as standard
Remote 7 day Programmable Room Thermostat Optional extra Optional extra Optional extra Optional extra 
Integral 7 day Electronic Timer Optional extra Optional extra Optional extra Optional extra
Wireless 24 hour Analogue Programmable Room Thermostat Optional extra Optional extra Optional extra Optional extra
Heat Output CH Non Condensing (70°Mean) kW Max kW Min 24 6.8 24 8.7 28 9.4 32 9.6
Heat Output CH Condensing (40°Mean) kW Max kW Min 25.9 7.4 25.9 9.5 30.3 10.2 34.4 12.1
Heat Output Domestic Hot Water kW Max 24 28 33 40
Maximum Domestic Hot Water Flow Rate l/min @ 35°C Rise 9.8 11.5 13.5 16.4
SAP 2009 Annual Efficiency (PCDB/SEDBUK) % 89.0  89.0  88.9  88.9 
NO Class 2005 5 5 5 5


mg/kWh      20  23  20  23 
Sound Power Level, Indoors  LWA dB  50  53  52  50 
Space Heating Efficiency Class   
Water Heating Declared Load Profile    XL  XL  XL XL
Water Heating Efficiency Class    A A A A
Power Consumption Watts 85 120 125 125
Integral 'Boiler Only' Frost Thermostat Yes Yes Yes Yes
24 hour Pump Exercise Yes Yes Yes Yes
Compartment Ventilation Requirement None None None None
Pre-plumbing/Wall Mounting Jig Yes Yes Yes Yes
Temporary Filling Loop included Yes Yes Yes Yes
Stand Off Kit (for pipe off runs
behind boiler)
Optional extra Optional extra Optional extra Optional extra


Additional heating and hot water controls can improve the overall performance of your heating system by as much as 13% (according to ErP Directive drafts), dramatically reducing the amount of fuel you use - and the amount you pay for your energy bill.

For more information please speak to your installer as they will be able to advise you on the controls that are right for you.

  • Baxi plug-in 24 hour digital timer which plugs into the boiler fascia for a simple timer option, giving usability of a mechanical timer with digital features
  • Baxi programmable 24 hour wireless sensor improves energy saving night with a set-back function which lowers night time room temperature
  • Baxi room thermostat can achieve additional savings of £70 and 280 kg carbon dioxide a year according to Energy Saving Trust
  • Electro-mechanical 24 hour timer kit which is simple to use, traditional tappet time clock
  • Baxi wired weather sensor can monitor outside temperature and optimises boiler performance for efficiency, economy and comfort

For more information on additional heating and water accessories please visit our controls page

Learn more about the Baxi Platinum Combi by downloading product literature, whether searching for a guide on how to use boiler controls, instructions on what to do when changing a boiler part, or the benefits of using a Baxi.

  • Baxi Platinum Combi ErP user guide (PDF 1.82MB, 01/10/2015)
  • Baxi Platinum Combi ErP installation and servicing manual (PDF 9.53MB, 01/10/2015)
  • Baxi Platinum Combi ErP homeowner guide (PDF 0.62MB, 01/10/2015)
  • Baxi Platinum, Duo-tec and Megaflo ErP range guide (PDF 2.42MB, 01/10/2015)
  • We don't sell our products directly to consumers which is why our prices aren't on our website.

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    Download documents about the Baxi Platinum Combi, from installation information, to brochures and user guides.