Transparent assumptions
What could this room cost to run?
Set the equipment, tariff and pattern of use. The result is an illustration, not a quote or a promised saving.
Before the heat pump
Reduce the room's demand first.
Shade, ventilation, insulation and the way a room is built can make more difference than simply fitting a bigger unit.
Make the assumptions yours
We show the product figures used, comparisons and solar context so the maths stays visible.
See the product data used
Midea Breezeless E 09: 2.79 kW nominal cooling; SCOP 4.6.
Illustrative Midea Breezeless E 09 electricity cost
Illustrative plug-in radiator comparison
This is a comparison of stated seasonal efficiency figures at the selected tariff and pattern of use—not a saving we promise. Actual consumption varies with weather, room heat loss, settings and installation.
Solar and the room
Potential daytime PV match
This selected use is about 3.6 kWh a day. About 4 430 W panels could illustratively generate an equivalent amount on a summer day.
This is an energy comparison, not a bill offset or a generation promise. Roof direction, shade, weather, the time you run the unit and other household demand all matter—especially in winter.
Try Energy Saving Trust’s solar calculator