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