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Electric Hot Water System Installation Cost

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Electric Hot Water System Installation Cost & Replacement Prices

There are two types of electric hot water systems – storage and instant. The most popular electric hot water system is the electric storage tank.

Electric storage hot water units vary in size from around 25L to 400L and cost between $450-$2545.

Supply and installation prices are for same size installations / replacements. An additional $185 charge applies where a tempering valve is required.

* Free removal of old tank is included.

Electric Hot Water System Installation Cost & Replacement Prices

50L Tank Price
250L Tank Price
80L Tank Price
315L Tank Price
125L Tank Price
400L Tank Price
160L Tank Price
Tankless Price

*Click here or call 1300 465 463 for more detail
#Conditions apply. Domestic installs only.

315L Electric Hot Water Systems also come in a Twin Element option. However, it is not possible to install these unless the existing tank is a Twin Element.

The model numbers for 315 Litre Twin Element Electric Tanks (for the above 3 brands) are :

Rheem 492315; Vulcan 662315; Thermann 315THMB236. The warranties and dimensions are as per the above table.

*Click here or call 1300 465 463 for more detail
#Conditions apply. Domestic installs only.

400L Electric Hot Water Systems also come in a Twin Element option. However, it is not possible to install these unless the existing tank is a Twin Element.

The model numbers for 400 Litre Twin Element Electric Tanks (for the above 3 brands) are :

Rheem 492400; Vulcan 662400; Thermann 400THMB236. The warranties and dimensions are as per the above table.

* FREE REMOVAL of old tank. Supply & Install prices are for replacements in same position with easy, level access & for same size / type of tanks located on the ground. Free parking available on site or just outside building. Otherwise additional charges may apply. Extra charges include : $185 for a Tempering Valve installed (per Government regulations) and 1% for Visa/Mastercard.

Electric Hot Water Tankless System Installation & Replacement Prices

Electric Instant Hot Water
PRICE RANGE $1,199-$1,899
 Height, Width & Diameter Warranty (Years)
Brand (Model) ACCURATE PRICE H (mm) W (mm) D (mm) Cylinder Leaking Labour On Cylinder Parts & Labour
Wilson A5 (A5) PH: 1300 465 463 285 185 115 2# 2# 2#
Stiebel Eltron (DHF 13) PH: 1300 465 463 370 220 130 5# 5# 5#
Stiebel Eltron (DHF 15) PH: 1300 465 463 370 220 130 5# 5# 5#

^Click here or call 1300 465 463 for more detail
#Conditions apply. Domestic installs only.

The above Electric Instantaneous Hot Water Systems are 3-Phase units. The Wilson A5 is only suitable as a replacement of an existing 3-Phase Instant Water Heater such as the old Hocking, the newer Wilson or the Stiebel DHF13 or DHF 15. Likewise the Stiebel DHF13 or DHF15 is also only suitable as a direct replacement of an old 3-Phase water heater.

Frequently Asked Questions

 Factors include tank size, material (stainless steel vs. enamel), energy source (electric, gas, solar), brand, and installation complexity.

Larger tanks cost more due to increased material use and higher energy demands. However, they may be more economical for larger households.

 Yes, many modern tanks feature improved insulation, smart controls, and energy-saving modes to enhance efficiency.

Prices generally range from $800 to $2,000 depending on size, brand, and energy source. Installation costs are extra.

Electric tanks are typically cheaper upfront but may have higher running costs. Gas models usually cost more to buy but are often cheaper to operate.

In some areas, government rebates or incentives may be available, particularly for energy-efficient or environmentally friendly systems.

^ FREE REMOVAL of old system. Supply & Install prices are for replacements in same position with easy, level access & for same size / type of system located at a reachable height when standing at ground level & not in a recess box. Free parking available on site or just outside building. Otherwise additional charges may apply. Extra charges include : $285 for a High Performance Tempering Valve installed (per Government regulations) and 1% for Visa/Mastercard.

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