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