>>451845PIC = steel can outer with foil covering inside to reflect heat back in.
candle in bottom heats up steel above it.
bent sheet and absorbs heat instead of it all just flowing straight up and out.
slows down heat release so you can place face / hands / feet over it.
when candles burns out - slow release of heat from steel sheet in middle.
note = steel in middle is made from another spare can.
can acts as a heat focus and prevents wind blowing candle out.
it`s just an idea i made up. whether it works or not. you decide. it worked for me.
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you could also put a copper ball container inside can and fill it with oil to absorb heat from the candle bellow it.