Dux Ecosmart 300DHC25 Price 2026: Installed Cost and Rebates
What the Dux Ecosmart 300DHC25 (285L) costs installed, what the federal and state rebates take off in each state, and the specifications Dux publishes for it. A 285L R290 (propane) heat pump for a 4-6 person household.
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Dux Ecosmart 300DHC25 price (2026)
Modelled estimate, checked 23 September 2026: built from published before-rebate installed prices for this model, not Dux's list price and not a quote. The STC discount is 15 certificates for a 2026 install in zone 3, which covers Sydney, Brisbane, Adelaide and Perth; Melbourne, Canberra and Hobart earn more, at the $40 clearing house cap. From 1 January 2027 the same system earns about one fifth fewer certificates, so the discount falls again.
Dux Ecosmart 300DHC25 price after rebates, by state
Certificates depend on the climate zone of the capital city. State rebates have their own eligibility rules, so follow the state link before you count on one.
| State | STC discount | After STCs | After state rebates |
|---|---|---|---|
| Victoria Zone 4 | ~$640 (16 STCs) | $2,860 to $3,210 | $830 to $2,010 |
| New South Wales Zone 3 | ~$600 (15 STCs) | $2,900 to $3,250 | $2,260 to $2,920 |
| Queensland Zone 3 | ~$600 (15 STCs) | $2,900 to $3,250 | See QLD rebates |
| South Australia Zone 3 | ~$600 (15 STCs) | $2,900 to $3,250 | See SA rebates |
| Australian Capital Territory Zone 5 | ~$640 (16 STCs) | $2,860 to $3,210 | See ACT rebates |
| Western Australia Zone 3 | ~$600 (15 STCs) | $2,900 to $3,250 | See WA rebates |
| Tasmania Zone 5 | ~$640 (16 STCs) | $2,860 to $3,210 | See TAS rebates |
| Northern Territory Zone 1 | ~$480 (12 STCs) | $3,020 to $3,370 | See NT rebates |
Victoria includes the Solar Victoria rebate and Victorian Energy Upgrades; New South Wales includes the Energy Savings Scheme discount. Both are ranges because the amount depends on the system you replace and the installer.
Dux Ecosmart 300DHC25 specifications
| Specification | Figure | Source |
|---|---|---|
| Tank capacity | 285L | PumpSwap brand data |
| Coefficient of performance (COP) | 4.63 | Dux's published figure |
| Sound level | Not published | Dux publishes none |
| Refrigerant | R290 (propane) | Dux data sheet |
| Dimensions (H x W x D) | 2005 x 620 x 620 mm | PumpSwap brand data; confirm on the installer's data sheet |
| Weight | 125 kg | PumpSwap brand data; confirm on the installer's data sheet |
| Warranty | 7 years tank, 3 years compressor | Dux's terms for the range, as held in PumpSwap brand data; confirm the current terms on your quote |
| Register model code | 300DHC25 | Clean Energy Regulator register, read 23 September 2026 |
| Running cost | ~$256 a year | Modelled from the COP: four people, 200L a day, 31c/kWh |
| Suited to | 4-6 person household | PumpSwap sizing guide |
Dux is listed as Australian made at brand level; not every model in a range is built here, so check this one with the installer. Dux has products on Solar Victoria's locally made list; check this exact model number on the list before you count on the higher tier.
Dux Ecosmart 300DHC25: common questions
How much does the Dux Ecosmart 300DHC25 cost installed in 2026?
Our modelled installed price for the Dux Ecosmart 300DHC25 (285L) is $3,500 - $3,850 before rebates, built from published installed prices and checked 23 September 2026. The federal STC discount on this model is 15 certificates, about $600, for a 2026 install in zone 3, which covers Sydney, Brisbane, Adelaide and Perth; Melbourne, Canberra and Hobart earn more. That leaves roughly $2,900 to $3,250 before any state rebate. Your installer's quote is the real price: it depends on access, the old system and the electrical work.
Who is the Dux Ecosmart 300DHC25 suited to?
It is a 285L tank, which suits a 4-6 person household on our sizing guide. Across the Dux range, it is best for: victorian households chasing the higher locally made rebate tier, and anyone who wants an Australian-built tank.
What warranty comes with the Dux Ecosmart 300DHC25?
Dux publishes a 7-year tank warranty and 3 years on the compressor for its range. Workmanship on the install is the installer's own warranty, so ask each installer for theirs in writing.
How noisy is the Dux Ecosmart 300DHC25?
Dux does not publish a sound level for this model. If noise matters, ask the installer for a written figure before you commit. We will not print a number the maker does not stand behind.
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