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