OM1500MW Owner's Manual Brandname: WaterFurnace Category: Furnace Total Pages: 38 Table of contents TableofContents5InterestingFacts7HowGeothermalSystemsWork8HeatingMode9CoolingMode10HotWaterAssist11ClosedLoopSystems14OpenLoopSystems15YourLoopLocation16SafetyWarnings17Thermostats19HomeownerMaintenance20Troubleshooting21AndOperatingTips22