Dux 270L (270DHB36)
Rebates up to
$2,490
STC $640 · VEEC $850 (VIC) · ESC $840 (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
72%
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 | 270 L |
| Rated heating capacity | 3.6 kW |
| Rated power input | 0.8 kW |
| COP | 4.7 (20 degrees C ambient air, heating water 20 to 60 degrees C (Dux Ecosmart Pro-Series brochure)) |
| Hot water delivery | 60 °C |
| Operating ambient | -5 to 43 °C |
| Tank height | 2010 mm |
| Tank diameter | 640 mm |
| Electric backup | 2.4 kW |
Specs from: Dux 270DHB36 User Manual (Hot Water Heat Pump) and Dux Water Heaters product guide (Jan 2026), Ecosmart Pro-Series Heat Pump section; 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 | 13 STCs | $520 |
| 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) | 9 / 10 | 8 | 68.8% |
| Canberra (Z5) | 9 / 9 | 8 | 66.3% |
ESS — ESCs (NSW)
| Zone | Repl. electric metro / regional | Repl. gas metro / regional | Energy savings (medium load) |
|---|---|---|---|
| Sydney (Z3) | 26 / 27 | 12 / 12 | 72.1% |
| Canberra (Z5) | 27 / 28 | 12 / 11 | 68.0% |
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 Dux 270DHB36 is an integral heat pump water heater: the R290 heat pump and 270 L tank are built into a single monobloc unit with a rotary compressor, so there is no separate outdoor module to site. The unit delivers 3.6 kW of heating with a 0.8 kW power input at the manufacturer’s measurement condition (20 degrees C ambient, 15 degrees C water inlet, 55 degrees C water outlet), and runs in ambient temperatures from -5 to 43 degrees C.
Hot water is delivered at up to 60 degrees C, and a 2.4 kW electric element backs up the heat pump. The refrigerant charge is 680 g of R290, a flammable hydrocarbon requiring installation by a licensed refrigeration mechanic. The unit uses 3/4 inch water connections and a 230-240V single-phase supply, with the cabinet measuring 640 mm diameter by 2010 mm high. Declared COP is 4.7 at 20 degrees C ambient, heating water from 20 to 60 degrees C.
The 270DHB36P is the plug-in variant of the same Ecosmart Pro-Series unit (identical tank and heat pump), fitted with a smaller 1.0 kW boost element instead of the hardwired model’s 2.4 kW element, per the Dux product guide’s Pro-Series performance table. It is grouped here as the same physical product.
The 270DHC36 / 270DHC36P register codes (a different model letter) are not confirmed by current Dux marketing or manual material as the same product as this Pro-Series unit, so they are excluded from this entry pending further source material.
Registered model codes
270DHB36, 270DHB36P
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