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