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