It’s an effective use of all those Ikea tealights, and creates enough heat to keep a room toasty (and energy bills down).

You will need:
4 tealights
Metal loaf tin
Matches or a lighter 2 bricks
Cooling rack
2 terracotta flower pots: one should fit inside the other, with about 2cm of space between the two
Small piece of foil

1 Pop the tealights in the loaf tin and light. Then add a brick on either side of the tin and place the rack on top.
2 Position the smaller of the two pots upside down on the rack, right over the candles.
3 Cover the hole in the bottom of the pot with foil.
4 Then put the larger pot over the first.
5 If and when the candles go out, just slide out the tin to relight or swap in a new tealight.

Note: It heats up quickly and will be too hot to touch after about half an hour, so keep kids and pets away.