Answer: insulate

AnswerCrossword Clue
INSULATEBeat the heat or cold
insulateProtect from the unpleasant effects or elements of something
insulateto isolate from connection
insulatePrevent the passage of electricity to or from (something) by covering it in nonconducting material
insulateMake (land) into an island
insulateProtect (something) by interposing material that prevents the loss of heat or the intrusion of sound
INSULATEInstall fiberglass, perhaps
INSULATEPut fiberfill in, e.g
INSULATEWrap in fiberglass
INSULATETake steps to keep the house warm
INSULATEPrevent heat transmission
INSULATEProtect against cold
INSULATESet apart
INSULATESet apart.
INSULATEShield
INSULATEProtect from heat loss
INSULATEMake heatproof
INSULATEProtect
INSULATEProtect against heat loss, say
INSULATEWeatherize, as with fiberglass