The short answer is no, you don’t have to.
An air source heat pump is the most efficient and sustainable heating system meaning that you are less likely to require additional renewable technologies e.g. solar PV.
Using other heating systems such as gas or electric boilers is still allowed. However, it will mean that you must install additional renewable technologies to meet compliance.
Air source heat pumps are therefore a common solution when developers & builders do not want to install additional systems.
If you are unsure of which option to go with, UKBC can outline different scenarios on SAP – allowing you to take your time in weighing up the best option. Find our more about SAP Calculations with UKBC here.