PI3: Heat trap on all storage water heaters

Purpose

Heat traps increase overall efficiency for storage water heaters by preventing heat loss from inside the storage tank when flow stops.

Criteria

If installing a storage water heater, either purchase storage water heater with a heat trap preinstalled or install heat trap on storage water heater.

Clarifications

Appliances equipped with an internal heat trap may be verified through the unit specification sheet supplied by the manufacturer.

Confirmation

The EarthCraft Technical Advisor will visually confirm compliance of criteria at final inspection.