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