VAT rate for installing replacement heat pump

Our customer has a non-functioning air source heat pump, which requires replacement. Is the installation of a replacement heat pump (the same make & model as the non-functioning unit), included in the 0% vat rate applicable to energy saving materials. This is a supply and install job for a residential customer.

Hi,
If you replace an air source heat pump then it can be treated as a zero rated installation of energy saving materials if the conditions are met as below:
2. Installations of energy-saving materials.
Thank you.