Specially designed burners to heat pipes to a point at which they emit infrared energy "tuned" to the absorption range of ice.
(they; emit; infrared energy; L:a point) (Specially designed burners to heat pipes to a point; tuned; to the absorption range of ice)
they Specially designed burners to heat pipes to a point
emit tuned
infrared energy L:a point
to the absorption range of ice