COMcheck 101 Training: Service Water Heating Requirements
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Service Water Heating Requirements
All of the applicable general requirements from the 2003 International Energy Conservation Code must be met regardless of which compliance method is chosen.
Equipment Efficiency
Like heating and cooling system efficiencies, water heaters also have efficiency requirements. The term Energy Factor (EF) is used to describe a water heater's efficiency. EF is a rating similar to the miles per gallon rating for cars and factors in energy efficiency and standby loss.
The EF is superseded by NAECA:
- The National Appliance Energy Conservation Act (NAECA) supersedes the minimum efficiency requirements addressed in the IECC.
- NAECA applies to heating, cooling, and water-heating systems.
- The manufacturer must comply with NAECA, so the equipment purchased by the builder should automatically comply with the provisions.
System Controls
For circulating hot water systems, automatic time switches are required to turn the pump and heat tracer tape off when the system is not operating.
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