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