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