Weller Portasol Professional Self-igniting Cordless Butane Solder Kit-$40 (RR $60). Free in store pick-up at Sears. By admin | January 12, 2017 9:54 am EST 0 Comment Sears has theWeller Portasol Professional Self-igniting Cordless Butane Solder Kit for $40. This is regularly $60.Free in store pick-up.HEREAmazon has it for $53 HEREGood reviews.