Why is this?
Evidently the stove needs air to make the wood or coal burn, just as the candle needs air to make it burn.
~5.

Animals Die without Air.~--If you should shut up a mouse or any other small animal in a fruit-jar, its life would go out just as the light of the candle went out.

The little animal would die in a short time.

A child shut up in a close place would die from the same cause in a very little time.

In fact, many children are dying every day for want of a sufficient supply of pure air.
~6.