Ariston 200L (ARIHPWH-200)
Rebates up to
$2,405
STC $640 · VEEC $765 (VIC) · ESC $810 (NSW) · Solar Homes up to $1,000 (VIC)
Replace-electric, medium household, best zone. Federal STCs plus the better of VIC (VEECs and Solar Homes) or NSW (ESCs). Enter your postcode below for exact figures.
VIC Solar Homes rebate
$1,000
50% of installed price up to this cap, point-of-sale. Included in the VIC total above.
VIC only. This model is on Solar Victoria's product list.
AS/NZS 4234 energy savings
69%
vs the standard's reference electric storage water heater, medium load, best zone.
Register data as at CER (STC) 2026-04-30 · VEU 2026-08-05
Specifications
| Type | Integral all-in-one |
| Refrigerant | R290 |
| Tank volume | 200 L |
| Tank material | Enamelled steel tank with titanium impressed-current anode and magnesium anode corrosion protection |
| Rated power input | 0.65 kW |
| Hot water delivery | 60 °C |
| Tank height | 1524 mm |
| Tank diameter | 640 mm |
| Tank weight (empty) | 93.3 kg |
| Electric backup | 1.2 kW |
Certified to
Specs from: Ariston HPWH installation/owner manuals (205L-280L and 205L-280L-320L editions); 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)
| Zone 1 | 12 STCs | $480 |
| Zone 2 | 12 STCs | $480 |
| Sydney (Z3) | 15 STCs | $600 |
| Melbourne (Z4) | 16 STCs | $640 |
| Canberra (Z5) | 16 STCs | $640 |
VEU — VEECs (Victoria)
| Zone | Repl. electric metro / regional | Repl. gas | Energy savings (small load) |
|---|---|---|---|
| Melbourne (Z4) | 8 / 9 | 7 | 64.7% |
| Canberra (Z5) | 8 / 9 | 7 | 62.2% |
ESS — ESCs (NSW)
| Zone | Repl. electric metro / regional | Repl. gas metro / regional | Energy savings (medium load) |
|---|---|---|---|
| Sydney (Z3) | 25 / 26 | 11 / 11 | 69.2% |
| Canberra (Z5) | 26 / 27 | 11 / 11 | 66.3% |
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 and load size, calculated from the model's registered performance data, or taken directly from the register where it publishes a savings figure. VEU registers this data at the small load (the step-down load for a medium-rated system) and ESS at the medium load, so the two schemes' figures differ for the same zone.
The Ariston ARIHPWH-200 is an integral heat pump water heater: the R290 heat pump sits atop a 205 L enamelled-steel storage tank (200 L nominal) in a single monobloc casing, standing 1524 mm tall on a 640 mm diameter body and weighing 93.3 kg empty. The heat pump draws an average of 0.65 kW and heats water to a maximum of 60 degrees C on its own; a 1.2 kW electric element backs it up for faster recovery or when conditions push the heat pump out of range, extending delivery to 70 degrees C.
R290 is a low-GWP hydrocarbon refrigerant (GWP of 3). The tank uses a titanium impressed-current anode plus a magnesium anode for corrosion protection, and connects via 3/4 inch (20 mm) hydraulic fittings. The unit carries RCM certification (AS/NZS 60335.1, AS/NZS 60335.2.40), StandardMark (AS/NZS 4020, AS/NZS 4692) and WaterMark.
Registered model codes
ARIHPWH-200
Homeowners
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