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Hot Water System Cost in Kalgoorlie, WA: Heat Pump Prices & Rebates

Replacing a gas or electric hot water system in Kalgoorlie? This guide covers heat pump pricing, because Western Australia rebates can make a heat pump one of the cheapest systems to run and cut the upfront cost sharply.

There are 25 plumbing and electrical businesses within 25km of Kalgoorlie. You do not need to ring around them. Tell us about your system and up to 3 who cover your street will send you a quote.

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$2,700 - $5,100
After rebates
$3,200 - $5,800
Before rebates
$500 - $700
Total rebates available
18%
Homes with gas

Kalgoorlie's warm subtropical climate with mild winters is ideal heat pump territory: systems run at or near their rated efficiency all year, so running costs sit at the low end of the estimates on this page. Installed prices in Kalgoorlie currently sit above the state average.

As a growing residential area in regional Western Australia, Kalgoorlie has a reasonable selection of local heat pump installers. You should still get competitive quotes from local businesses.

Kalgoorlie sits above the Western Australia average for installation costs. This typically reflects larger homes, more complex installations, or a preference for premium brands in the area.

With only 18% gas penetration, most Kalgoorlie homes already use electric hot water. Switching from electric storage to a heat pump offers the biggest running cost savings in this area.

Available Rebates in Kalgoorlie

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

Recommended Brands for Kalgoorlie

iStore

Budget-conscious households wanting maximum rebate impact and simple installation

COP: 3.2Warranty: 5yrNoise: 50dB
$2,800 - $4,400
installed, before rebates

Rheem

Homeowners who want a reliable, well-supported mid-range option from a trusted Australian brand

COP: 3.5Warranty: 5yrNoise: 48dB
$3,200 - $4,800
installed, before rebates

Stiebel Eltron

Those who value German engineering and build quality at a mid-to-premium price point

COP: 3.8Warranty: 5yrNoise: 44dB
$3,500 - $5,000
installed, before rebates

Sanden

Those who want the absolute best efficiency and longest warranty, regardless of upfront cost

COP: 5.1Warranty: 15yrNoise: 38dB
$6,500 - $8,000
installed, before rebates

Reclaim Energy

Homeowners wanting premium Australian-designed quality with the quietest operation

COP: 4.5Warranty: 10yrNoise: 37dB
$6,600 - $8,000
installed, before rebates

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Frequently Asked Questions

How much does a heat pump hot water system cost in Kalgoorlie?
A heat pump hot water system in Kalgoorlie costs between $2,700 and $5,100 fully installed after all available rebates. Before rebates, expect to pay $3,200 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 Kalgoorlie?
Kalgoorlie 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 Kalgoorlie's climate?
Kalgoorlie has a warm subtropical climate with mild winters. Heat pumps operate at peak efficiency in this climate zone. With warm ambient temperatures year-round, expect COP ratings close to or exceeding manufacturer specifications. Running costs will be at the lower end of estimates. 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 Kalgoorlie?
A standard heat pump hot water installation in Kalgoorlie 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 Kalgoorlie home?
For Kalgoorlie in climate zone 3: 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 Kalgoorlie?
In Kalgoorlie's warm climate (zone 3), 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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Helpful Guides

Complete Guide to Heat Pump RebatesWhat Size Heat Pump Do I Need?Best Heat Pump Brands in Australia (2026)7 Common Heat Pump ProblemsHow to Replace Your Gas Hot Water

More About Heat Pumps in Kalgoorlie

Reclaim Energy in Kalgoorlie$6,600 - $8,000Sanden in Kalgoorlie$6,500 - $8,000Rheem in Kalgoorlie$3,200 - $4,800iStore in Kalgoorlie$2,800 - $4,400Stiebel Eltron in Kalgoorlie$3,500 - $5,000Replace Gas in KalgoorlieReplace Electric in KalgoorlieReplace Solar in KalgoorlieFind Installers in Kalgoorlie

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Heat Pump Hot Water Costs Across Western Australia

Compare installation costs in other Western Australia suburbs, or see the Western Australia cost guide for the statewide picture.

AlbanyAlkimosApplecrossArmadaleAshfieldAtwellAubin GroveAugustaBalcattaBaldivisBanjupBassendeanBatemanBayswaterBeaconsfieldBeckenhamBedfordBeldonBelmontBentleyBertramBibra LakeBooragoonBrentwoodBridgetownBroomeBull CreekBunburyBurns BeachBusseltonByfordCanning ValeCanningtonCarnarvonCavershamChurchlandsCity BeachClaremontClarksonCockburnCollieConnollyCoolbellupCoolbiniaCottesloeCraigieCrawleyDalkeithDenmarkDerbyDianellaDoubleviewDuncraigDunsboroughEast CanningtonEast FremantleEast PerthEast Victoria ParkEllenbrookEsperanceExmouthFitzroy CrossingFloreatForrestdaleFremantleGeraldtonGosnellsGreenwoodGuildfordHalls CreekHamersleyHamilton HillHammond ParkHarrisdaleHarveyHeathridgeHenley BrookHighgateHillarysHiltonHuntingdaleInglewoodInnalooJolimontJoondalupKalamundaKardinyaKarrathaKarrinyupKatanningKenwickKingsleyKinrossKununurraKwinanaLangfordLeedervilleLeemingLynwoodMaddingtonMandurahManjimupMargaret RiverMaylandsMenoraMerredinMerriwaMidlandMindarieMorleyMosman ParkMount BarkerMount HawthornMount LawleyMount PleasantMundaringMundijongMurdochNarroginNedlandsNewmanNollamaraNorth FremantleNorth LakeNorth PerthNorthamNorthbridgeO'ConnorOsborne ParkPadburyParkwoodPembertonPeppermint GrovePerth CBDPiara WatersPinjarraPort HedlandQueens ParkQuinns RocksRivertonRivervaleRockinghamRossmoyneSamsonScarboroughSerpentineShelleyShenton ParkSorrentoSouth FremantleSouth GuildfordSouth HedlandSouth PerthSouthern RiverSpearwoodSt JamesStirlingSubiacoSuccessThe VinesThornlieTom PriceTuart HillTwo RocksVictoria ParkWannerooWaroonaWarwickWellardWelshpoolWembleyWembley DownsWillettonWinthropWoodlandsWoodvaleYanchepYangebupYokine