Click here to purchase Product Details Published: 2019 ANSI: ANSI Approved Number of Pages: 6 Units of Measure: Dual File Size: 1 file , 430 KB Post navigation Previous PostCH-09-047 (RP-1182) — Field Testing Residential Fan-Assisted Gas-Fired Furnaces — Part II: Effects of Altitude on Steady State Efficiency and Nitric Oxide EmissionsNext PostASHRAE 164.1-2012 (RA 2016)