Heat pumps move heat around, whereas radiators create it.
The “efficiency” of heatpumps relates to heat they import into a system for a given amount of power, compared to creating heat with that power. They are not generating that heat. They are moving it.
Similarly, it’s much more energy efficient to use a wheelbarrow to collect ice and move it inside, than it is to make ice cubes in freezer.
Heat pumps move heat around, whereas radiators create it.
The “efficiency” of heatpumps relates to heat they import into a system for a given amount of power, compared to creating heat with that power. They are not generating that heat. They are moving it.
Similarly, it’s much more energy efficient to use a wheelbarrow to collect ice and move it inside, than it is to make ice cubes in freezer.