Potterton Gold Combi

The Potterton Gold Combi is a small, highly efficient boiler that is a firm favourite for homeowners and installers alike.

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Suitable for


Single boiler output
24kW, 28kW and 33kW

Fully modulating boiler
Making it more cost efficient to run

Energy Saving Trust endorsed
Meeting the strictest performance criteria

Why choose a Potterton Gold Combi?

With built in frost protection so it can be easily installed in unheated garages or utility rooms, the Potterton Gold combi is an ultra-convenient, reliable boiler that continues to impress.  The fully modulating Combi is cost-efficient and comes with a two-year parts and labour warranty*  for complete peace of mind.

You can register your Potterton Gold boiler online using Baxi's warranty registration form.

*Read Potterton's warranty terms and conditions

Please note: warranty and purchasing information on this site applies to the UK only. For information on how to buy these products in the Republic of Ireland, please visit Baxi Potterton Myson.

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  • Outputs of 24kW, 28kW and 33kW to suit most households and property sizes.
  • Fully modulating - making it cost efficient to run.
  • Flue lengths up to 20 metres - for great siting flexibility.
  • Pre-plumbing jig - allowing for a quick installation.
  • Two-year parts and labour warranty
  • Energy Saving Trust Endorsed - extremely efficient and cost effective
  • Mechanical clock fitted as standard - for added energy efficiency


View product specification

When clicked this will open the product specification in PDF format.

Potterton Gold Combi  

Units   24kW  28kW  33kW 
Sales code (Boiler only) 5115896 5116207 5116209
Sales code (Std flue & Elbow 60/100)  5118489 5118489 5118489
Sales code (Boiler with flue)  5115897 5116208 5116210


Concealed user controls  Yes  Yes   Yes   Yes  
Operating mode selector switch with reset  Yes   Yes   Yes   Yes  
User adjustable DHW temperature  Yes   Yes   Yes   Yes  
User adjustable CH temperature  Yes   Yes   Yes   Yes  
LCD operating status display  Yes   Yes   Yes   Yes  
LED operating status display  Yes   Yes   Yes   Yes  
Integral 24hr electro-mechanical timer  Yes   Yes   Yes   Yes  
Integral 7 day electronic timer   Optional   Optional   Optional   Optional  
Single channel wireless programmable room thermostat  Optional  Optional   Optional   Optional  


Gas (natural gas/LPG)   NG  NG   NG  
Inlet supply pressure  mbar  20  20  20 
Maximum gas rate  m3/hr  2.61  3.06  3.59
Central heating input (max)  kW  22.7  27.4  32.1 
Central heating output - condensing (max)  kW  21  25.9  30.3 
Central heating output - non-condensing (max)  kW  20  24  28 
Domestic hot water input (max)  kW  27.4  32.1  37.7 
Seasonal efficiency  91.1  91.1  91.1 
SEDBUK rating Band 
NOx class   
NOx levels  mg/kWhr  22.3  26  21.8 
EcoHomes  Credits 


Electrical supply  volts/Hz  230/50  230/50   230/50  
Permanent live required    Yes  Yes  Yes 
Power consumption  watts   155  155  160 
External fuse rating amps 3 3 3
Integral 'boiler only' frost thermostat    Yes  Yes  Yes 


Wall mounting jig    Yes   Yes   Yes  
Isolating valves    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 
Condensate drain connection  mm  21.5  21.5  21.5 
Safety discharge connection  mm  15  15  15 
Filling loop kit  Yes  Yes  Yes 


Domestic hot water output (raised 35°C)(max) I/min  9.8  11.5  13.5 
Domestic hot water operating flow rate (min)  I/min   2
Domestic hot water operating pressure (min)  bar  0.15  0.15  0.15 
Domestic hot water system pressure (max)  bar  10
Safety discharge pressure  bar 
Integral automatic bypass    Yes  Yes  Yes 
Integral expansion vessel capacity  litres  10 
CH system capacity (max)  litres  125  125  155 
Compartment ventilation required    No  No  No 
24hr pump exercise    Yes   Yes   Yes  
Pump overrun    Yes   Yes   Yes  

Concentric flue systems 

Concentric flue diameters  mm    60/100 and 80/125 
Concentric flue length  mm  685  685   685  
Max equiv vertical length (Ø 60/100)  10  10   10  
Max equiv vertical length (Ø 80/125)  20  20   20  
Max equiv horizontal length (Ø 60/100)  10   10   10  
Max equiv horizontal length (Ø 80/125)  20   20   20  

Twin flue system 

Twin pipe flue diameter  mm  80/80  80/80   80/80  
Max equiv vertical length  15  15   15  
Max equiv horizontal length  15   15   15  

Plume displacement kit 

Max equiv vertical length  13 13


Gross packaged boiler weight  kg  48.6  48.6 51 
Packaged boiler dimensions (LxWxD)  mm   964 x 540 x 403

Potterton Gold Combi literature

Potterton Titanium and Gold Range Guide updated 30/06/2017 (6.67MB) Gold combi user guide updated 24/05/2017 (1.82MB) Gold combi installation and servicing manual updated 24/05/2017 (10.38MB)

The following accessories and controls are compatible with the Potterton Gold Combi. To find out more, go to our Accessories and Controls page.

  • Integral 24hr electro-mechanical timer
  • Integral 7 day electronic
  • EP1 Programmer
  • EP2 Programmer
  • Single channel wireless programmable room thermostat
  • Potterton RF digital 7 day programmable roomset (wireless)
  • Filling loop kit

Potterton Gold Combi ErP labels

Product fiche Potterton Gold Combi updated 21/09/2015 (0.10MB) Gold combi ErP label updated 08/04/2016 (0.15MB)

This product can be purchased through APP Wholesale, please click the following links to find your nearest stockist.

Mr Central Heating


Mr Central Heating




Compass Essex






Customer support

Totally dependable.