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Dux Heat Pump Hot Water in Humpty Doo, NT

AustraliaAustralian MadeClimate Zone 1

Looking at a Dux heat pump for your Humpty Doo home? Installed pricing for Dux in NT ranges from $3,300 - $3,850 before rebates, with an estimated $2,600 - $3,350 after all available Northern Territory rebates and federal STCs are applied. victorian households chasing the higher locally made rebate tier, and anyone who wants an Australian-built tank.

Dux is priced below the local average of $3,600 - $5,800, making it one of the most affordable options for households in this area. Combined with available rebates, out-of-pocket costs can be very competitive.

Heat pumps work well in this climate zone but will see some efficiency reduction during cold winter mornings (below 5C). Split system models with CO2 refrigerant (Sanden, Reclaim) maintain better performance in cold conditions than integrated R134a models.

$3,300 - $3,850
Before rebates
$2,600 - $3,350
After rebates (est.)
4.23
COP (efficiency)
7yr
Max warranty

Dux Models Available

Dux Ecosmart 200DHC25 (200L)

$3,300 - $3,600
installed, before rebates
Capacity
200L
COP
4.23
Running cost
~$280/yr
STC rebate value (zone 1)
~$480
Suitable for
2-3 person household
Noise
Not published
Dimensions
1580x620x620mm
Weight
90kg

Estimated cost in Humpty Doo after rebates: $2,600 - $3,100

Dux Ecosmart 300DHC25 (285L)

$3,500 - $3,850
installed, before rebates
Capacity
285L
COP
4.63
Running cost
~$256/yr
STC rebate value (zone 1)
~$480
Suitable for
4-6 person household
Noise
Not published
Dimensions
2005x620x620mm
Weight
125kg

Estimated cost in Humpty Doo after rebates: $2,800 - $3,350

Dux Ecosmart Pro-Series 270DHB36 (270L)

$3,500 - $3,800
installed, before rebates
Capacity
270L
COP
4.7
Running cost
~$252/yr
STC rebate value (zone 1)
~$520
Suitable for
3-5 person household
Noise
Not published
Dimensions
2010x640x640mm
Weight
114kg

Estimated cost in Humpty Doo after rebates: $2,800 - $3,300

How Dux Performs in Humpty Doo's Climate

ExcellentClimate Zone 1 | R290 refrigerant

Dux performs exceptionally well in climate zone 1. With warm ambient temperatures for most of the year, the R290 refrigerant system will operate near its rated COP of 4.23. Running costs will be at the lower end of estimates, and you can expect consistent hot water delivery year-round.

Pros

  • The Ecosmart DHC range is designed and manufactured in Australia
  • On the Solar Victoria locally made list, so it earns the higher Victorian rebate tier
  • 7-year tank warranty
  • Y-class commercial enamel tank with dual anodes
  • Published COP of 4.63 on the 285L

Cons

  • Dux publishes no sound level for any Ecosmart model, so you cannot compare it on noise
  • Only 3 years on the heat pump components, and 1 year on everything else
  • The Pro-Series makes no Australian-made claim and is not on the locally made list
  • The model sold as 300DHC25 holds 285L, not 300L
  • No minimum operating temperature published for the DHC range

Available Rebates for Dux in Humpty Doo

Federal

Small-scale Technology Certificates (STCs)

Applied as a point-of-sale discount by your installer. Value varies by system type and climate zone.

$500 - $700
estimated value

Compare Other Brands in Humpty Doo

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From $3,350
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All brand costs in Humpty DooFull Dux review

Heat pump guides for the Northern Territory

Dux in Humpty Doo - Frequently Asked Questions

How much does a heat pump hot water system cost in Humpty Doo?
A heat pump hot water system in Humpty Doo costs between $3,000 and $5,200 fully installed after all available rebates. Before rebates, expect to pay $3,600 to $5,800. The final price depends on the brand, tank size, and complexity of your installation.
What rebates are available for heat pump hot water in Humpty Doo?
Humpty Doo residents can access federal Small-scale Technology Certificates (STCs) worth $500-$700 as a point-of-sale discount. These rebates are typically applied by your installer at the point of sale.
Are heat pumps efficient in Humpty Doo's climate?
Humpty Doo has a mild temperate climate with cool winters. Heat pumps work well in this climate zone but will see some efficiency reduction during cold winter mornings (below 5C). Split system models with CO2 refrigerant (Sanden, Reclaim) maintain better performance in cold conditions than integrated R134a models. A typical household of 3-4 people will spend $200-$400 per year running a heat pump, compared to $800-$1,200 for gas or $1,200-$1,800 for electric storage.
How long does a heat pump installation take in Humpty Doo?
A standard heat pump hot water installation in Humpty Doo takes 3-5 hours for a straightforward replacement. If you're converting from gas, it may take a full day as the installer needs to connect new electrical circuits and potentially modify plumbing. Regional installations may require scheduling 2-4 weeks ahead.
What size heat pump do I need for my Humpty Doo home?
For Humpty Doo in climate zone 1: 1-2 people need a 150-170L tank, 3-4 people need a 250-315L tank, and 5+ people should consider a 315-400L tank. Your warmer climate means the heat pump recovers quickly, so standard sizing works well.
Which heat pump brand is best for Humpty Doo?
In Humpty Doo's warm climate (zone 1), all heat pump brands perform excellently. Budget models like iStore and Midea deliver strong COP ratings year-round in warm conditions, making them excellent value. If budget allows, Daikin offers the best warranty (10 years parts and labour) and Rinnai's AR series is Australian-made (qualifying for the higher VIC rebate tier).
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