Heating Troubleshooting Checklist
All Heating Systems
THERMOSTAT CHECK
Is the system selector switch in the "heat" position?
Is the temperature set at least 3 degrees above current room te READ MORE http://www.hannabery.com/servicetips.shtml
Step by Step Heating System Inspection Procedure Guide
How to inspect & repair central heating systems
What are the basic components of heating systems?
Determining heating system capacity & e READ MORE http://www.inspect-ny.com/heat/HeatingSys.htm