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| Brand | arrow_downward Model | Rated Nominal Capacity (litres) - New Zealand Product | Rated Hot Water Delivery (litres) - Australian Product | Rated/Declared Heat Loss (kWh/24hr) | Regulator | Availability | Expiry Date | Registration Number |
| Rheem Optima | Rheem 315L TE Optima Electric Storage 492315Rx | 315 | 315 | 3.12 | Australian Regulator | Available | 26 Mar 2028 | AHW0603 |
| Rheem Optima | Rheem 315L Optima Electric Storage 491315Rx | 315 | 315 | 2.92 | Australian Regulator | Available | 1 Apr 2028 | AHW0605 |
| Rheem Optima | Rheem 250L TE Optima Electric Storage 492250Rx | 250 | 250 | 2.84 | Australian Regulator | Available | 3 Apr 2028 | AHW0613 |
| Rheem Optima | Rheem 250L Optima Electric Storage 491250Rx | 250 | 250 | 2.64 | Australian Regulator | Available | 1 Apr 2028 | AHW0607 |
| RHEEM | Rheem 160L TE Electric Storage 492160Rx | 160 | 160 | 2.42 | Australian Regulator | Unavailable | 4 Jun 2024 | AHW0434 |
| RHEEM | Rheem 160L Electric Storage 491160Rx | 160 | 160 | 2.22 | Australian Regulator | Unavailable | 4 Jun 2024 | AHW0435 |
| RHEEM | Rheem 125L Electric Storage 491125Rx | 125 | 125 | 2.01 | Australian Regulator | Unavailable | 4 Jun 2024 | AHW0436 |
| Alliance | R50 xxy.z | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 36.2 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 36.1 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 36 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 24P.2 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 24P.1 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 24P | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 18P.2 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 18P.1 | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R50 18P | 54 | 50 | 1.45 | Australian Regulator | Available | 10 Nov 2025 | AHW0473 |
| Alliance | R45xxy.z | 49 | 40 | 1.38 | Australian Regulator | Available | 28 Oct 2025 | AHW0470 |
| Alliance | R45 36.2 | 49 | 40 | 1.38 | Australian Regulator | Available | 28 Oct 2025 | AHW0470 |
| Alliance | R45 36.1 | 49 | 40 | 1.38 | Australian Regulator | Available | 28 Oct 2025 | AHW0470 |
- [*] "N/A" results are from models registered under the old Determination/Regulation, yet comply with the new Determination/Regulation's Minimum Energy Performance Standard