Just because the pots get hot doesn't mean this will do shit to provide heat to the room. There's a reason why we need much more fuel/energy to effectively heat a room and don't use simple contraptions like this instead. Radiant electric space heaters that consume 1800 watts will barely heat a small room and these types of heaters are way more efficient at creating usable usable heat. This little two-candle 'life hack' isn't going to do shit unless you're touching the pots directly. There just isn't enough energy density in paraffin or beeswax candles to heat a room adequately.
If that's all that's available it's better than nothing.
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