24kW Morco LPG Condensing Combi Boiler – Series III


The Morco GB24 SIII ErP LPG Condensing Combi Boiler can be flued horizontally or vertically.

Available on back-order

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SKU GB24SIIIErP Category Brand


24kW Morco LPG Condensing Combi Boiler – Series III

This boiler can be flued either horizontally or vertically (flues sold separately) and will require the PKZ Connection Kit for installation.

This appliance installs and commissions in exactly the same way as the GB24-LPG SII with the exception that the pressure gauge now comes as part of the boiler.

  • To flue vertically you will require (RSF345 & RSF346)
  • To flue horizontally you will need (RSF303)

Additional flue accessories and extensions can also be purchased.

The latest Series IV model is now available here.

For your well-being and safety, it is mandatory that a Gas Safe Registered engineer in the UK installs this boiler, adhering to industry regulations.

2 years standard warranty.

Technical Info

24kW Combination Boiler

Flues horizontally (RSF303) or vertically (RSF345 & RSF346).

Mains electricity required (if fitting off grid, please consult an electrician).

Must be fitted by a Gas Safe registered engineer.

Dimensions: H 700mm W 395mm D 285mm
Gas Type: LPG
Flow rate: Approx 10 litres per minute at 35°C temperature rise

Technical Diagrams


User Manual


Delivery & Returns

Delivery costs

Northern Ireland - Free | Mainland UK - Free


We offer a 14 day return window on receipt of your goods. You will be responsible for the collection cost if the product is not faulty or damaged. Our full return and refund policy can be viewed at the bottom of this page under 'Refund Policy' or by clicking the return icon above.



Morco standard warranty period is two years from date of commission for the GB boilers and one year for the FEB models and all water heaters. If the appliance is an original fitment in a brand-new caravan holiday home, any problems within the standard warranty period will need to be reported to point of sale for the holiday home, for example the park or dealer. There is no requirement to register warranty with Morco. If the below information can be provided this will help speed up the process:

Model Number of the Appliance - e.g. EUP6 or GB24 IV etc.
Description of the problem - e.g. appliance fails to ignite or central heating works but no hot water
The fault code, if the appliance has an LCD display.

For any appliances which are not original fitments in holiday homes, Morco would usually recommend asking the commissioning engineer to reattend and call their technical helpline on 01482 325 456 from in front of the appliance. Please note, Morco may ask for a copy of the commissioning certificate in these cases. Warranty on appliances which were not fitted into holiday homes at manufacture is parts and advice. For more information regarding the warranty on individual appliances, please see the warranty section from within the instruction manual. If you have any further questions regarding Morco's warranty, please contact us.


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24kW Morco LPG Condensing Combi Boiler – Series III