I have two prices for units. Trane TUCIC100A948 XR 80 furnace. with a XL 14 A/C w/coil 4 ton. VS. RHEEM RGRA-10EZAJS -Furnace. Rheem Rand-060Y*Z 5 ton w/coil -AC. The Rheem units are more efficient (90% vs. 80% Trane), and The Rheem AC is larger, 5 ton vs 4 ton (rheem) both service providers have a good reputation. 29-gallon gas water heater that outperforms standard 50-gallon models XR90 29-Gallon Capacity 60,000 Btu/h Natural Gas Maintenance Free XR90 Water Heaters Ruud Water Heating • 101 Bell Road, Montgomery, Alabama 36117-4305 • ruud.com … Read Here Rheem XR90 - Spirit Group Inc. | Manufacturers … Rheem XR90 Water Heater: Faster Heating at Less Cost. some are for operational purposes, while others are for servicing purposes. At its most basic level, the system makes installation, troubleshooting, and maintenance easier. The Guardian Flammable Vapor Ignition Resistance (FVIR) System provides protection against flammable vapor ignition. Residential 38 and 48 Gallon The purpose of this manual is twofold: one, to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater; and two, for the owner-operator, to explain the features, operation, safety precautions, maintenance and troubleshooting of the water heater. Basic Venting of Gas Fired Water Heaters and the XR 90 Fan Assist Water Heater gas, Ultra Low NOx; XR90 Common venting is the method of connecting two or more gas appliances (water heater plus something New 29 gallon water heater outperforms standard 50 gallon models! 40,000 BTU gas water heater with an EF of .58. 1437 - XR90 Venting Class of venting and where the XR 90 fits in. 1438 ULN 75 & 98 Gallon Parts Repairs How to replace the Hot Surface Igniter, pressure switch or blower motor for the residential 75 & 98 gallon ULN. 1439 ULN 75 & 98 Gallon Sequence of Operations Sequence of Operations for the ULN 75 and 98 gallon residential water heater. RHEEM TANKLESS ELECTRIC Tankless Electric Water Heaters With 1-YearLimited Parts Warranty See Residential Warranty Certificate for complete information. Rheem Canada Ltd./Ltée • Water Heater Division 125 Edgeware Road, Unit 1, Brampton, Ontario L6Y 0P5 Printed in U.S.A. 02/11 WP Form No. TK-205 Rev. 3 Fetch DocumentFrom Rheem - Green Products- Solar Electric Bikes, Solar of quiet and efficient service. All models can be converted to L.P. gas without changing burners. INTEGRATED SYSTEM CONTROL Exclusively designed operational pro-gram provides total control of furnace limit sensors, blowers, gas valve, flame control and includes self diagnostics for ease of service. Also contains connec-tion points for E.A.C The Rheem Professional Classic Plus XR90 is a 29 Gal. 60,000 BTU Natural Gas Water Heater featuring an electronic self-diagnostic gas control system that monitors system performance and operation, designed for residential applications. This water heater delivers 93 Gal. of hot water within the first hour, providing more hot water than most 50 I ended up going with Rheem's 50 gallon powered damper model that only lowers the efficiency rating (from the XR90's 0.7) to 0.68 (the damper closes after the flame extinguishes and helps further insulate the combustion chamber, which as you noted above RWB is a major source of heat loss). Manual Rheem Furnace Installation Manual Yeah, reviewing a books rheem furnace installation manual All models can be converted by a qualified Rheem distributor or