A small fireplace with wool in front of it.
(does not burn)
-Netherrack (Nether Rock)
-fire (lighter or similar)
-Other non-combustible material
-wool (color or not does not matter)
Set one. Netherrack.
2. before the Netherrack wool (put carpet).
3. place non-combustible material on top and next to it.
4. ignite and place iron grate in front of it
Attention, it is best not to leave any space above the fire (air) because otherwise sparks could get onto the wool in front of the fire!