2. Do I have to be F-Gas certified

Do I have to be F-Gas certified to fit an Air Source Heat Pump?

Monobloc style air source heat pumps contain a hermetically sealed refrigeration circuit and do not require F-Gas certification to install. Split style air source heat pumps share or split the refrigerant circuit between the indoor and outdoor units, the pipework between these units must be done by an F-Gas certified engineer.


To install and service a Monobloc and Split air source heat pump you need to have a knowledge of plumbing and heating and it is advisable to hold the industry approved NVQ level 3 in air source heat pump installation. From a maintenance perspective, a competent person could replace sensors, PCBs, hydraulic products, casings and the fan. You would need F-Gas certification to work on the refrigerant components.

Related FAQs

Will an air source heat pump work in all weather conditions?

Commercial air source heat pumps are designed to work in all kinds of weather, including when the temperature drops below freezing. Learn more...

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Will an air source heat pump work while I am on holiday?

Yes, use 'holiday' mode while you are on holiday to ensure your house is at a comfortable temperature for when you return.

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What size air source heat pump do I need?

For your heat pump to deliver the expected results, sizing is the key. Learn about the different ASHP size options & how to calculate the right size here

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Will an air source heat pump work in the winter?

Yes, air source heat pumps still work effectively even in colder conditions. A defrost cycle ensures that the unit remains clear of frost and ice and continues to work as you expect.

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Do I have to be F-Gas certified to fit an Air Source Heat Pump?

Monobloc style air source heat pumps contain a hermetically sealed refrigeration circuit and do not require F-Gas certification to install.

Read more