3 ms·

It's interesting that heat from the fan appears not to matter. Do newer fridges have fans built-in? I've never heard one going; even if it's shut off when the

It's interesting that heat from the fan appears not to matter. Do newer fridges have fans built-in? I've never heard one going; even if it's shut off when the door opens, I'd expect to hear it slowing down.

NeedMoreTea 7y ago
Frost free fridge freezers have a fan built in, or at least some do - that's as well as the large fan to pass external air across the heat exchange. The fan was near the freezer heat exchange coils on the one I dug into. The fan turned off when you opened the door, so you couldn't detect airflow, but operate the door switch and you could, but not where you might think, and it was barely audible. Opening the freezer door made it much clearer. The visible vent in the fridge was the passive air exit, the fan assisted entry vent was hidden amongst the bulge that contained electronics, thermostat, and a flap that shut off the entry vent from the freezer section. Presumably to shut off fridge cooling when freezer was still calling for more. Edit: I should add it was moving a pretty low volume of air, nothing like you might expect from various CPU and case fans.
cr0sh 7y ago
> Do newer fridges have fans built-in? How much did you spend on your fridge? Cheap fridges likely don't have such a fan...
- Jeff_Brown 7y ago
  Zero dollars. I rent a furnished place with such a POS fridge it sounds like distorted electric guitar. But I've had the pleasure of using some very nice ones. Will listen more closely next time.
d2wa 7y ago
The fan does generate some heat, yes. It should be no more than 15 kW/year (it uses well under 2W but the converter is a bit inefficient). The savings are expected to be around 226 kW/year (including the added heat from the fan.)
- perilunar 7y ago
  Those units should be kWh/year, not kW/year (and kWh/d in the article). (Though personally I'd just use Watts exclusively, and ignore the per day and per year figures.)

NeedMoreTea 7y ago

Frost free fridge freezers have a fan built in, or at least some do - that's as well as the large fan to pass external air across the heat exchange. The fan was near the freezer heat exchange coils on the one I dug into. The fan turned off when you opened the door, so you couldn't detect airflow, but operate the door switch and you could, but not where you might think, and it was barely audible. Opening the freezer door made it much clearer. The visible vent in the fridge was the passive air exit, the fan assisted entry vent was hidden amongst the bulge that contained electronics, thermostat, and a flap that shut off the entry vent from the freezer section. Presumably to shut off fridge cooling when freezer was still calling for more. Edit: I should add it was moving a pretty low volume of air, nothing like you might expect from various CPU and case fans.

cr0sh 7y ago

> Do newer fridges have fans built-in? How much did you spend on your fridge? Cheap fridges likely don't have such a fan...

Jeff_Brown 7y ago
Zero dollars. I rent a furnished place with such a POS fridge it sounds like distorted electric guitar. But I've had the pleasure of using some very nice ones. Will listen more closely next time.

d2wa 7y ago

The fan does generate some heat, yes. It should be no more than 15 kW/year (it uses well under 2W but the converter is a bit inefficient). The savings are expected to be around 226 kW/year (including the added heat from the fan.)

perilunar 7y ago
Those units should be kWh/year, not kW/year (and kWh/d in the article). (Though personally I'd just use Watts exclusively, and ignore the per day and per year figures.)