Pretty cool, i like the main character idea of moving around as a furnace armor for a fire spirit, and the flame's design on the cover art is really cute :)
I'd just say the attack range feels a bit short, and it would help to have some indicators or a radar of sorts to help locate the enemies while you wander around the house to light the candles.
Other than that i liked it still, it's a cool concept with some nice artstyle.
Congrats to you guys !