th ▁century , ▁and ▁are ▁still ▁manufact ured . ▁In ▁some ▁models , ▁the ▁oil ▁or ▁gas ▁may ▁fuel ▁the ▁st ove ▁through ▁a ▁pipe ▁connection ▁leading ▁to ▁a ▁" pot ▁burn er " ▁in ▁the ▁rear ▁of ▁the ▁fire wood ▁compart ment ▁in ▁the ▁st ove .\ ▁ ▁Multi - f uel ▁st ov es ▁are ▁vers atile , ▁but ▁usually ▁perform ▁poor ly ▁compared ▁to ▁a ▁st ove ▁that ▁is ▁designed ▁to ▁burn ▁one ▁specific ▁fuel ▁as ▁well ▁as ▁possible . ▁ ▁Catal yt ic ▁and ▁non - catal yt ic ▁st ov es ▁Modern ▁wood ▁st ov es ▁univers ally ▁have ▁some ▁method ▁of ▁secondary ▁comb ust ion ▁to ▁burn ▁un burn ed ▁g ass es ▁for ▁greatly ▁improved ▁efficiency ▁and ▁em issions . ▁ ▁One ▁common ▁method ▁is ▁via ▁a ▁catal yst . ▁ ▁A ▁catal yt ic ▁wood ▁st ove ▁will ▁re - burn ▁the ▁g ass es ▁from ▁the ▁fire box ▁in ▁a ▁catal yst - ▁a ▁matrix ▁of ▁steel ▁or ▁cer am ic ▁pl ated ▁with ▁a ▁catal yst ▁that ▁allows ▁comb ust ion ▁of ▁these ▁g ass es ▁at ▁much ▁lower ▁temper atures ▁than ▁would ▁ordin arily ▁be ▁possible . ▁ ▁This ▁is ▁why ▁among ▁modern ▁st ov es , ▁catal yt ic ▁models ▁tend ▁to ▁be ▁much ▁better ▁at ▁ach ieving ▁low , ▁even ▁heat ▁output , ▁which ▁is ▁des irable ▁in ▁war mer ▁weather . ▁ ▁Modern ▁non - catal yt ic ▁wood ▁st ov es ▁will ▁also ▁reb urn ▁the ▁g ass