locinvar boiler Home › Forums › Archives › Old Bulletin Board Archives › locinvar boiler This topic has 0 replies, 1 voice, and was last updated 25 years, 9 months ago by jwh1. Viewing 0 reply threads Author Posts 20 Feb 1999 at 11:04 pm #280371 jwh1 I have a locinvar boiler 95000 btu that makes a high pitched whinning sound just as its getting up to temp. any help would be appreciated Author Posts Viewing 0 reply threads The forum ‘Old Bulletin Board Archives’ is closed to new topics and replies.