I am looking for a RobertShaw thermostat owner's manual for an progrmable unit that has the number D3400 stamped on the inside of the cover. The unit is rectagular, has one AA battery and a clock-timer with two controls that apparently allow the off and on times to be set.
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Lit our fireplace for the first time this season last night and the whole living room filled with smoke, alarm went off. Chimney was cleaned last year...