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