What hypocaust is made of

Roman underfloor heating with hot air.

• Firebox — has part. A furnace outside the building.
• Space under floor on brick pillars — has part. A space under the floor on brick pillars.
• Wall heating flues — has part. Pipes in the walls for hot air.
• Convection — uses. Hot air under the floor.
• Combustion — uses. Hot air from the furnace heats the floor.
• Brick — is made of. The pillars of a hypocaust are brick.

Hypocaust

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