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