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