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