Households trying to cut energy costs may find their radiators heat up faster simply by moving one common item away from them. Energy experts at Fuse say that when radiators are slow to warm up, even after bleeding and thermostat tweaks, the problem may be how furniture is arranged around them.
Many households short on space put sofas in front of radiators, but the experts advise removing them from that area. Keeping the space around radiators clear is important for maintaining a cosy home without raising the thermostat.
Why sofas block heat
The experts warned: “Placing large items like sofas directly in front of radiators creates a physical barrier, trapping heat and preventing it from spreading efficiently into the room.”
“This forces your heating system to work harder and for longer to reach the desired temperature, leading to wasted energy and higher bills.”
“Obstructing radiators can significantly reduce their efficiency, meaning a portion of the heat generated never properly warms your living space.”
Other risks of close furniture
Beyond higher bills and colder rooms, positioning furniture near radiators can damage possessions and affect air quality. Prolonged heat exposure can make upholstery shrink, sag, lose colour, or crack and warp, depending on the material.
Blocked airflow around radiators can also trap moisture and condensation, creating conditions for mould to grow.
Optimal radiator placement
To ensure optimal heat circulation, the experts urged keeping furniture at least 30cm away from radiators. This gap lets warm air flow upward and move around the room naturally instead of being absorbed by furniture.
A similar rule applies to curtains. When radiators are on, curtains should not cover them, as this directs heat toward the window. Instead, place curtains behind the radiator to heat the entire room.
When space is limited, vertical radiators are a good alternative, requiring less horizontal wall space and fitting into tight wall sections. To maximise efficiency, a reflective sheet can be placed behind a sofa to bounce warmth back, or a protective sofa cover can keep upholstery in good condition.
