Heil Gas Furnaces: NTGM, GNK

Re: Product Overview

90% Condensing Gas Furnace

• NTGM / GNK - Upflow/Horizontal
• NCGM / GCK - Downflow/Horizontal

PARTS

• Honeywell "Smart Valve" Gas Valve - Use GV.03 for Replacement
• ST9120U Fan Timer Board