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