Thinking of covering your heat pump to shield it from the elements or improve its appearance? It can be done safely, as long as you maintain the airflow your system needs. Here’s how to protect your unit, keep it efficient, and avoid common mistakes.
Can a heat pump be covered safely and does doing so affect its performance or efficiency?
Yes, you can cover a heat pump as long as airflow isn’t restricted. Heat pumps need clear space around the intake and exhaust to work at their best. If air can flow freely, the system will remain efficient and reliable. To shield the unit from leaves or weather, opt for purpose-built protective covers or shelters designed for HVAC equipment that allow full airflow.
If the aesthetics are a concern, there are several options for homeowners. The installer will find a discreet place for the outdoor element of heat pump unit and Daikin’s latest models have been redesigned specifically for home environments, with unobtrusive styling that will blend into any setting. Daikin can even provide bespoke vinyl wraps (to match brickwork, for example) to help the unit merge into the background completely.
You should also avoid leaving anything on top of the heat pump, as heavy items can dent the surface and make it hard to open. Make sure the hoses at the back of the unit are free from kinks or bends.
What kind of clearance or airflow does a heat pump need to operate effectively?
A heat pump needs unrestricted airflow to work efficiently. We typically recommend leaving at least 30–50 cm around the sides and 1 metre in front of the fan. Obstructions like fences, plants, or walls too close to the unit can restrict airflow, leading to higher energy use and faster wear on the components.
Are there types of coverings or enclosures that are suitable, and what materials or designs should be avoided?
If you're considering an enclosure, it should be open-sided or louvred, allowing free airflow while shielding the unit from debris or weather. Avoid solid boxes or sheds, anything airtight, or materials that trap heat as these can impair performance. Also, keep in mind that any cover must allow for service access - if the unit cannot be easily reached, it cannot be properly maintained.
What kind of clearance or airflow does a heat pump need to operate effectively?
A heat pump needs unrestricted airflow to work efficiently. We typically recommend leaving at least 30–50 cm around the sides and 1 metre in front of the fan. Obstructions like fences, plants, or walls too close to the unit can restrict airflow, leading to higher energy use and faster wear on the components.
Are there types of coverings or enclosures that are suitable, and what materials or designs should be avoided?
If you're considering an enclosure, it should be open-sided or louvred, allowing free airflow while shielding the unit from debris or weather. Avoid solid boxes or sheds, anything airtight, or materials that trap heat as these can impair performance. Also, keep in mind that any cover must allow for service access - if the unit cannot be easily reached, it cannot be properly maintained.
About Hamid Salimi
Hamid Salimi is Residential Product Manager at Daikin Airconditioning UK Ltd. Hamid is a member of CIBSE and has BSc and MSc in mechanical engineering. He has worked with Daikin for over 13 years in various roles such as product applications, HVAC design and currently as a Product Manager leading a team of product specialists covering all aspects of residential renewable heating.
Hamid specialises in and talks about Heat Pumps, Renewables and Net Zero. He has over 16 years of experience in HVAC, product management, legislation, and sales.
