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