Aloha,

Good Energy Update: Tankless Water Heaters

As the COVID-19 pandemic closed the state to visitors last year, some businesses in the hotel and travel industry took advantage of the downtime to make major upgrades to their infrastructure and operations. Halekulani, the 453-room luxury hotel in Waikiki, replaced their old boilers with 32 gas tankless water heaters that will serve multiple areas in the hotel including hot water demands for guest rooms and their in-house laundry service. The new on-demand tankless water heaters are more energy efficient and will provide the hotel with significant energy cost savings over time.

1. Approved (certified) by Underwriters Laboratories, Inc. (UL) or other nationally recognized testing laboratory;
2. At least one additional gas appliance must be installed in the dwelling;
3. The gas water heater must provide hot water only as it is needed;
4. The burden of proof will lie with the applicant to demonstrate that a solar water heater system, regardless of location or circumstance, is not cost effective in the context of a 30-year mortgage term; and
5. The applicant must be the party who will ultimately pay for the energy cost consumption