3 ms·
The hot urn cannot be more efficient than boiling the correct amount of water each time. The limiting factor is the specific heat capacity of water. If daily c
by psd1 3y ago
The hot urn cannot be more efficient than boiling the correct amount of water each time.
The limiting factor is the specific heat capacity of water. If daily consumption is 2l, you have to put in the joules to raise 2l to boiling, either way. If you have heat losses during the day, there's your inefficiency.
- jedberg 3y agoIt is of course less efficient. I never said it was more efficient. But it's more convenient.
- HDThoreaun 3y agoHow many people are boiling the correct amount each time though? I fill my jug up all the way and then keep reboiling which seems less efficient as the boiled water keeps cooling down.
- hot_gril 3y agoI fill it to a certain mark every time. Not that I'm trying to conserve energy, I just don't want to leave extra water sitting.
- zbrozek 3y agoI use my target cup to measure out how much water to boil.
- shrx 3y agoWhy wouldn't you boil just the amount that's needed? Boiling the whole container is unnecessarily wasteful.
- HDThoreaun 3y agoBoiling water costs like a tenth of a cent and saves a few seconds to just fill less often