> MUCH more energy efficient (you only heat the cookware, not the air around it)
They can be even more efficient, if you put insulation between the glass and your cooking pot. The pot is about 1cm from the coil even when directly on the glass, so additional ~3mm is no issue.
I reduced the fan speed due to noise, so I keep 3mm pot-sized cardboard on my induction plate as a precaution, to reduce underside heat loss.
Without cardboard, the plate's lowest setting is slightly more than I would prefer for cooking (~100C, minimal boil-off). With the cardboard, I need to periodically turn it on/off or it's just too wild for cooking with cover on.
Maybe better designs waste less, but there is significant heat transfer through glass, which is then fanned out the back.
They can be even more efficient, if you put insulation between the glass and your cooking pot. The pot is about 1cm from the coil even when directly on the glass, so additional ~3mm is no issue.
I reduced the fan speed due to noise, so I keep 3mm pot-sized cardboard on my induction plate as a precaution, to reduce underside heat loss.
Without cardboard, the plate's lowest setting is slightly more than I would prefer for cooking (~100C, minimal boil-off). With the cardboard, I need to periodically turn it on/off or it's just too wild for cooking with cover on.
Maybe better designs waste less, but there is significant heat transfer through glass, which is then fanned out the back.