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Show H" V. ' .-, ' .. v: -f I I i , . sir A :y How does your vent stack up as a vent? Before the heating season is upon us, look up. To your roof. See your vent stack? The one with the cap? Make sure it's unobstructed by debris (including unwanted nesting places) . Then, when you turn on your natural gas furnace, the products of combustion can escape. Your natural gas heating system is designed for safe and dependable service. You can keep it that way by following a few simple guidelines. If you'd like to know more about safe furnace operation, V stop by any Mountain Fuel office and pick up a free copy of . ; . our Natural Gas Reference Book. Or cdXitodsy J'Y 7 '' and we'll send you one. 70ff$007!& :- :7 ZI ' 7 7 ' !-V: 7777 ''.'J.'-Y'lf .v.:';'-'---. .' ' ',; MOUNTAIN FUEL SUPPLY COMPANY , ' , ' .' '. -." . . . ' v, v ';. ' ' '' .' '., ; People Serving People - ' . . .- . .' . .- :, :-' ' |