Zapped, No, they're not the same. See www.rawtimes.com/jrellis/swamp.html elecbob, If this is the exhaust/make up air for the kitchen vent hood, also be prepared to interlock it with the vent hood's fire extinguisher (ansul) system. Most easily accomplished using electrically held relays. (check with local AHJ, usually the fire inspector)...S
