Insulation
insulation
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COLD
ENERGY
FIRE
HEAT
HOT
INSULATOR
STOVE
SUN
TRANSFER
| I | R | E | F | S | N | A | R | T |
| X | N | I | N | W | Q | R | N | Q |
| T | R | S | H | E | A | T | V | Z |
| E | U | T | U | O | R | K | J | F |
| N | V | O | Z | L | T | G | G | W |
| F | C | V | C | G | A | X | Y | H |
| D | N | E | L | A | A | T | J | S |
| T | U | E | S | X | D | L | O | C |
| F | C | I | V | X | T | I | R | R |
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