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4-Speed 80% AFUE
Down-Flow

GDH8 Series 2-Stage
4-Speed 80% AFUE
Down-Flow

GDH8 Series 2-Stage<br>4-Speed 80% AFUE<br>Down-Flow

For down flow installations only. For up flow or horizontal applications please see GMH8 Series furnaces. These furnaces are set up for natural gas with an additional option for a propane gas conversion kit. This gas furnace has an AFUE rating of 80%, which means that 80 cents of every $1.00 of heating energy expense warms your home. This two stage gas furnace uses up to 30% less fuel when compared to any standard single stage 80% AFUE gas furnace.

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GDH80403AN 40,000 btuh 2-Stages of Heating 1½ to 3 Ton Capacity	GDH80603AN 60,000 btuh 2-Stages of Heating 1½ to 3 Ton Capacity	GDH80804BN 80,000 btuh 2-Stages of Heating 2½ to 4 Ton Capacity
GDH81005CN 100,000 btuh 2-Stages of Heating 3 to 5 Ton Capacity

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GDH8 Series 2-Stage4-Speed 80% AFUEDown-Flow

GDH8 Series 2-Stage
4-Speed 80% AFUE
Down-Flow