Naked Science Forum

Non Life Sciences => Physics, Astronomy & Cosmology => Topic started by: thedoc on 16/03/2016 01:50:02

Title: Can you heat a room with a candle?
Post by: thedoc on 16/03/2016 01:50:02

Ciaran Marshall asked the Naked Scientists:
   Dear Naked Scientists,

I've just moved into a new flat and discovered that we have electric central heating. It's costing us a fortune!

I've seen a few videos online lavishing praise on home-made candle and flower pot heaters. People claim they can heat a small room for 8p a day. I've also seen videos claiming that this is absolute rubbish. Who is right?

I'd really appreciate your help.
What do you think?

Title: Re: Can you heat a room with a candle?
Post by: RD on 16/03/2016 03:25:14

You'd need about a dozen candles lit to replace a 1-bar electric-fire ... http://www.thenakedscientists.com/HTML/questions/question/1857/

Without ventilation the candles would pollute the air. Also a fire hazard. Your fire insurance may not cover filling your home with naked flames.

Title: Re: Can you heat a room with a candle?
Post by: Colin2B on 16/03/2016 08:38:59

You might do better to invite friends round. I've seen suggestions that the average human produces about 100watts.

Title: Re: Can you heat a room with a candle?
Post by: alancalverd on 16/03/2016 12:05:15

Homo sapiens solved the problem of staying warm, centuries ago. My mum said: cotton for comfort, wool for warmth, leather for weather. And share a bed with someone you like.