Final answer:
The efficiency of non-condensing oil heating systems can be determined through combustion analysis, AFUE ratings, and manufacturer specifications, all providing different insights into overall system efficiency.
Step-by-step explanation:
To determine the efficiency of non-condensing oil heating systems, various methods can be used:
- Combustion analysis - This involves measuring the content of the flue gases to determine the completeness of the combustion process and to estimate the system's efficiency. A poorly tuned burner can waste fuel and may reduce efficiency.
- AFUE rating - The Annual Fuel Utilization Efficiency rating is a measure of the furnace's total efficiency over an entire heating season, as opposed to the efficiency of the system at a specific moment of operation.
- Manufacturer specifications - These can provide detailed efficiency ratings that depend on the particular coil installed with the unit. As efficiency may vary slightly based on geographic regions, it is important to consult the contractor or manufacturer for precise efficiency information.
Each of these methods provides a different perspective on system efficiency and may yield varying results based on the situation and how up-to-date or well-maintained the heating system is.