Dux 250L (DHSA45-250)
Rebates up to
$600
STC $600
Replace-electric, medium household, best zone. Enter your postcode below for exact figures.
Register data as at CER (STC) 2026-04-30
Specifications
| Type | Integral split |
| Refrigerant | R290 |
| Tank volume | 250 L |
| Warranty | Tank 7yr parts/3yr labour (single dwelling), 3yr/1yr (other applications); refrigeration components 3yr/3yr (single dwelling), 1yr/1yr (other); other components 1yr |
Specs from: Dux Ecosmart Heat Pump (Split Heat Pump, models DHSA45 / DHSA45P) Owner's Manual; public CER SRES / VEU / ESS registers.
Certificate rebate by postcode
Registered certificate values
Every scheme this model is registered for, by zone. STCs at $40, VEECs at $85, ESCs at $30 (reference prices as at 2026-07-07). Claim year 2026, medium household.
SRES — STCs (national)
| CER Zone 1 | 12 STCs | $480 |
| CER Zone 2 | 12 STCs | $480 |
| CER Zone 3 | 15 STCs | $600 |
| CER Zone 4 | 15 STCs | $600 |
| CER Zone 5 | 15 STCs | $600 |
VEU — VEECs (Victoria)
Not yet registered for VEECs.
ESS — ESCs (NSW)
Not yet registered for ESCs.
Certificate counts are computed from the model's registered performance data using the current regulated equations. A lodged claim depends on the specific installation, household size, and the scheme rules in force at creation. Energy savings % is against the AS/NZS 4234:2021 reference electric storage water heater for that zone, medium household, calculated from the model's registered performance data.
The Dux DHSA45-250 is a split heat pump water heater: an outdoor R290 heat pump unit connected by refrigeration piping to a 250 L storage tank, installed and commissioned by a licensed refrigeration mechanic. R290 is a flammable Class 3 hydrocarbon refrigerant, and the heat pump unit is suitable for outdoor installation only.
The system runs on a single-phase 230-240V AC supply, connects to water mains up to 800 kPa, and fits a pressure and temperature relief valve rated at 1000 kPa. Tank parts carry a 7 year warranty (3 years labour) for single-family dwellings, reducing to 3 years parts (1 year labour) for other applications, with refrigeration components covered 3 years (single dwelling) or 1 year (other applications).
The manual’s dimension and specification tables did not extract as text (image-based pages), so heating capacity, power input and cabinet dimensions are not available from this source. The N250 and P-suffix register codes are grouped here as the same nominal 250 L product; the manual does not confirm whether “N” denotes a different tank generation or material, so this grouping is uncertain.
Registered model codes
DHSA45-250, DHSA45P-250, DHSA45-N250, DHSA45P-N250
Homeowners
What's it worth at your place?
Enter your postcode to see the exact certificates and dollar rebate this model earns at your address.
Check your rebate →Installers & retailers
Quoting this product?
Compare it against alternatives, or talk to us about eligibility, zoning and claim paperwork.
Compare models →Manufacturers & importers
Your product?
Verify or update this listing, or ask about registering new models and maximising certificate outcomes.
Contact EnergyAE →New to the schemes? Read how STCs, VEECs and ESCs work for residential HPWHs, or see the HPWH Intelligence Platform for live compliance and certificate tools.