Wood floating down a canal which is then burned to keep us warm
Nope and Nope but creative guess.
sliced bread floating down the river and then eaten which helps create energy within the body to keep it warm?
Nope it's one word that starts with E
Nope and the next letter is:
Correct well done
It's been a little while so heres a good one:
Alive without breath,
As cold as death,
Clad in mail never clinking,
Never thirsty, ever drinking
What am I?