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