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