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