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