An air source heat pump can be a brilliant investment for a commercial building – but the key to a successful installation is getting the assessment right from the start. Here we look at what makes a site well-suited, what to consider before committing, and why correct sizing is the single most important factor in the process.
The Ideal Conditions
Air source heat pumps perform best in well-insulated buildings with space for an external unit and a consistent demand for heat and hot water. The better the insulation, the less the system has to work – and the lower the running costs as a result.
For commercial buildings, underfloor heating or correctly sized radiators are the most effective distribution systems. Both operate at the lower flow temperatures that heat pumps are designed to work with, maximising efficiency and keeping energy consumption down.
Well-Suited Commercial Applications
A wide range of commercial properties can be strong candidates for air source heat pump installation. These include:
- Offices and professional premises
- Retail units and showrooms
- Hospitality venues including hotels, restaurants, and cafes
- Healthcare facilities and care homes
- Smaller industrial or light commercial premises
Heat pumps are particularly attractive where gas connections are costly or impractical, or where decarbonisation is a business priority. The same principle applies to domestic properties, where ASHPs are increasingly becoming the heating solution of choice for homeowners looking to move away from fossil fuels.
Insulation First
For older or less well-insulated buildings, addressing insulation before or alongside an air source heat pump installation is essential. A heat pump working overtime in a poorly insulated building will drive up electricity consumption and undermine the financial case – often significantly.
This is a point worth taking seriously. The EPC changes coming into force for commercial buildings in 2027 and 2030 make this even more relevant – improving insulation to meet those requirements and installing a heat pump at the same time makes sound practical and financial sense.
Planning Considerations
For most domestic installations, air source heat pumps fall under permitted development rights, meaning planning permission is not typically required. There are exceptions – listed buildings and certain conservation areas – so it is always worth confirming the position for a specific property before proceeding. Commercial installations should be assessed on a case-by-case basis with appropriate guidance.
Getting the Sizing Right
This is perhaps the single most important factor in any heat pump installation. An undersized unit will not meet the building’s demand, leaving occupants without adequate heating or hot water. An oversized unit will cycle on and off inefficiently, wear components faster, and cost more to run than a correctly specified system.
Correct assessment and unit sizing is what separates a system that performs well over its lifetime from one that disappoints from the outset. It is where specialist knowledge and experience make the greatest difference.
How we can help
At Practical Energy Solutions, every site is assessed carefully and thoroughly before we specify a system. We take into account the building’s construction, insulation levels, heating demand profile, existing distribution systems, and the specific requirements of the business or occupant.
It is the only way to ensure that what we install delivers what it promises – and continues to do so for the life of the equipment.
If you are considering an air source heat pump for your building and would like to understand whether it is the right solution, we would be happy to have that conversation.
Get in touch with us on 01733 595150, to discuss your options.