Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 9/5/84; site ssc-vax.UUCP Path: utzoo!watmath!clyde!cbosgd!ihnp4!zehntel!tektronix!uw-beaver!ssc-vax!wanttaja From: wanttaja@ssc-vax.UUCP (Ronald J Wanttaja) Newsgroups: net.misc Subject: Re: Furnace Fan Noise Message-ID: <250@ssc-vax.UUCP> Date: Sat, 8-Dec-84 01:03:57 EST Article-I.D.: ssc-vax.250 Posted: Sat Dec 8 01:03:57 1984 Date-Received: Mon, 10-Dec-84 06:32:54 EST References: <414@hoxna.UUCP> Organization: Boeing Aerospace Co., Seattle, WA Lines: 20 > I had a similar problem with furnace fan noise. The solution is to reduce > the speed of the air circulating fan. Sounds like a good suggestion to me. Don't worry too much about less heat output- the instructions for our furnace state to ADJUST the fan speed until air of the specified temperature is exiting from the ducts. The slower fan speed allows the more heat to be transfered to the plenum air. One thing to be wary of, however, is overheating the plenum. Our furnace has an overtemperature cutoff, which pops a circuit breaker if the plenum temperature gets too high. We had that problem when we first moved in. The furnace would cycle just find holding a temperature, but if you moved the thermostat higher, the furnance would run for while, then pop the breaker when the plenum overheated. Thereafter, the furnace would cycle 2 min. on, 2 off, trying to get the house temperature up to the thermostat setting, with the overheat reset killing it as soon as the plenum heated up again. Once the plenum cooled and the breaker reset, it started over again. Ron Wanttaja (ssc-vax!wanttaja)