Heating tariffs for most distributors are limited to hours between 10pm and 7am. Storage water heaters must match their storage size to their intended use. Off-peak hot water systems are usually limited to providing hot water for 17-20 hours per day.

1. 4. Heating Tariffs Limited to hours between 10pm and 7am for most distributors. Storage size must be matched to the intended use. Off-Peak Usually limited to 17-20 hours per day (storage HWS). Controlled Small storage systems and instantaneous hot water systems. Continuous Description Type