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