in. cm in. cm in. cm in. cm BTU/HR kcal/HR 125 15.1 38 6 15 18 46 24.1 61 125,000 32 175 18.1 40 6 15 18 46 24.1 61 175,000 44 250 22.7 58 7 18 18.2 47 25.2 64 250,000 63 26.5 67 325,000 82 27.5 70 399,000 101 325 Specifications 26.9 and 400 68 Dimensions 8 for 32.4 82 LXi 20 ™ 9 Series 18.9 Heaters 48 23 21.5 55 B B A 22.4" 6.9" 27.5" 18.5" 15.5" 5.5" 6" Specifications and Dimensions, LXi Series Heaters Heater Width Dim “A” Model in. Heater Side to Mid-Vent cm in. cm Vent Diameter (Category I) in. cm Firing Rate BTU/HR kcal Heater Vent Location Dim “B” in. cm 250 23.5 59.7 10.5 26.7 6 15.2 250,000 63 10.5 26.7 400 32.0 81.3 15.6 39.7 8 20.3 399,000 101 15.6 39.6 1.06" 31.9" 4.06" 6.4" 5" Specifications and Dimensions, Hi-E2 Series Heaters 108 Model Input BTUs 23.5" Vent Collar 2016 Zodiac Pool Systems, Inc. Product Catalog 3.6" 34.06" 350 21.3" 350,000 16.6"