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Rheem Stellar gas hot water cylinder installed with copper pipework at Auckland property
Fixed Price — Fully Installed

Hot Water Cylinder Replacement Auckland — Fixed Pricing, Installed Same Day

Hot water cylinder replacement in Auckland starts from $2,450 +GST fully installed. Response Plumbing removes your old cylinder and installs a new Rheem, Thermann, or Rinnai system same-day — electric, gas, heat pump, or continuous flow. Fixed pricing, no hidden costs. Call 0800 877 586.

Hot water cylinder replacement is the removal and installation of a new hot water storage or instantaneous system — electric, gas, heat pump, or continuous flow. Response Plumbing replaces and certifies hot water cylinders across Auckland in a single day, with most standard swap-outs completed in 4–6 hours on site. PGDB-registered certifying plumbers with a 5-year workmanship warranty.

Like-for-like swaps and upgrades. Electric, gas, continuous flow, and heat pump systems. Same-day installation available.

Call Now — 0800 877 586
Fixed
Pricing
Same Day
Install
10yr
Warranty
$0
Call-Out Fee
PGDB Licensed — Plumbers, Gasfitters and Drainlayers Board

Licensed by the Plumbers, Gasfitters and Drainlayers Board

All our plumbers and gasfitters are PGDB registered certifying tradespeople — we can self-certify our own work for full compliance.

Fully Installed Pricing

Hot Water Cylinders — Fixed Price, Installed

Choose your system. Price is what you pay — fully installed, old cylinder removed. All prices exclude GST.

Rheem 180 litre mains pressure electric hot water cylinder
Electric — Mains Pressure

Rheem Electric Hot Water Cylinder — Mains Pressure

$2,957
+GST — Fully Installed

Like-for-like swap of your existing mains pressure electric cylinder to a brand new Rheem 180 litre unit. User-adjustable thermostat. Suitable for 2-3 people in moderate climates.

Includes: New Rheem 180L cylinder · Removal of old unit · Installation to existing plumbing · Valve pack & seismic restraints · Safe tray · Testing & certification
Get a Quote →
Thermann 180 litre mains pressure electric hot water cylinder
Electric — Mains Pressure

Thermann Hot Water Cylinder — 180 Litres

$2,940
+GST — Fully Installed

Like-for-like swap to a new Thermann 180 litre mains pressure electric cylinder. Quality construction with vitreous enamel lining. Great value alternative to Rheem.

Includes: New Thermann 180L cylinder · Removal of old unit · Installation to existing plumbing · Valve pack & seismic restraints · Safe tray · Testing & certification
Get a Quote →
Rheem 135 litre low pressure electric hot water cylinder
Electric — Low Pressure

Rheem 135L Low Pressure Cylinder

$2,700
+GST — Fully Installed

Like-for-like swap of your existing low pressure electric cylinder. Rheem 135 litre unit. Common in older Auckland homes with low pressure plumbing systems.

Includes: New Rheem 135L low pressure cylinder · Removal of old unit · Installation to existing plumbing · Valve pack & seismic restraints · Safe tray · Testing & certification
Get a Quote →
Rheem 180 litre stainless steel mains pressure hot water cylinder
Electric — Mains Pressure Stainless Steel

Rheem 180L Stainless Steel Mains Pressure Cylinder

$3,650
+GST — Fully Installed

Premium stainless steel construction for longer life and superior corrosion resistance. 180 litre capacity, 3kW element. Suitable for internal or external installation. The upgrade choice for homeowners wanting a cylinder that lasts.

Includes: New Rheem 180L stainless steel cylinder · Removal of old unit · Installation to existing plumbing · Valve pack & seismic restraints · Safe tray · Testing & certification
Get a Quote →
Rinnai Infinity A26 instantaneous gas continuous flow hot water unit
Gas — Continuous Flow

Rinnai Infinity A26 Instantaneous Gas Hot Water

$2,100
+GST — Fully Installed

Like-for-like swap of your existing Rinnai Infinity or equivalent gas continuous flow unit. Unlimited hot water on demand. 26 litres per minute. Never run out of hot water again.

Includes: New Rinnai Infinity A26 · Removal of old unit · Installation to existing gas & plumbing · Testing & gas compliance certification
Get a Quote →
Thermann 26R gas continuous flow hot water unit
Gas — Continuous Flow Upgrade

Thermann 26 Gas Hot Water — Upgrade

$3,315
+GST — Fully Installed

Upgrade to a Thermann 26 litre gas continuous flow system. Ideal if you're switching from an old electric cylinder to instant gas hot water. Includes gas pipework to unit location.

Includes: New Thermann 26 gas unit · Gas pipework to location · Removal of old system · Installation · Testing & gas compliance certification
Get a Quote →
Rheem Stellar 160 litre external gas storage hot water cylinder
Gas — External Stored

Rheem Stellar External 160 Litre

$4,200
+GST — Fully Installed

Like-for-like swap of your existing Rheem Stellar or equivalent external gas storage cylinder. 160 litre capacity with 5-star energy rating. Fast recovery for larger households.

Includes: New Rheem Stellar 160L · Removal of old unit · Installation to existing gas & plumbing · Testing & gas compliance certification
Get a Quote →
Rheem HDC270 Ambiheat heat pump hot water cylinder
Heat Pump — Electric

Rheem HDC270 Ambiheat Heat Pump — 270 Litres

$8,450
+GST — Fully Installed

Premium heat pump hot water system. Uses ambient air temperature to heat water — up to 3x more energy efficient than a standard electric cylinder. 270 litre capacity, 2.4kW backup element. Ideal for families wanting to reduce energy bills.

Includes: New Rheem HDC270 heat pump unit · Removal of old system · Installation to existing plumbing · Valve pack & seismic restraints · Safe tray · Electrical connection · Testing & certification
Get a Quote →
Rheem Ambipower 280E heat pump hot water cylinder
Heat Pump — Electric

Rheem Ambipower 280E Heat Pump — 280 Litres

$7,600
+GST — Fully Installed

High-efficiency heat pump hot water system with 280 litre capacity and 2.4kW backup element. Extracts heat from ambient air to heat water — significantly lower running costs than a standard electric cylinder. Smart digital controls with scheduling.

Includes: New Rheem Ambipower 280E · Removal of old system · Installation to existing plumbing · Valve pack & seismic restraints · Safe tray · Electrical connection · Testing & certification
Get a Quote →
All prices exclude GST. Prices are for standard like-for-like installations to existing plumbing in the same location. Electrical or building work is additional if required — costs confirmed before commencement. Call 0800 877 586 for a free quote.
What's Included

Every Installation Includes

No hidden costs. Here's exactly what you get with every hot water cylinder replacement.

Brand New Cylinder or Unit

Rheem, Thermann, or Rinnai — genuine NZ-supplied product with full manufacturer warranty.

Removal & Disposal of Old Unit

We remove your old cylinder and take it away. You don't need to deal with it.

Full Installation to Existing Plumbing

Connected to your existing hot and cold water supply in the same location as your current unit.

Valve Pack & Seismic Restraints

Mains pressure valve pack and earthquake restraint kit installed — NZ Building Code compliant.

Safe Tray — Code Requirement

Plastic safe tray installed under the cylinder to catch any future leaks — now a mandatory code requirement.

Testing & Certification

Fully tested, certified, and signed off by our certifying plumbers. Gas installations include gas compliance certificate.

Not Sure Which System Is Right for You?

Call us — we'll recommend the best option for your property, household size, and budget. No obligation.

0800 877 586
Why Choose Us

Why Auckland Chooses Response Plumbing for Hot Water

Fixed Pricing — No Surprises

The price you see is the price you pay. No hidden charges, no extras added on the day.

Same-Day Installation Available

Call in the morning, have hot water by evening. We carry common cylinders in stock for fast turnaround.

Certifying Plumbers & Gas Fitters

We self-certify our own work — no waiting for third-party inspectors. PGDB registered, $5M insured.

Up to 10-Year Manufacturer Warranty

All cylinders come with full manufacturer warranty plus our 5-year workmanship warranty on installation.

Honest Advice

We'll recommend the right system for your household — not just the most expensive. Electric, gas, or continuous flow.

Rated #1 on MoneyHub NZ

4.8 stars on Google with 222+ reviews. Auckland's most trusted plumber.

Service Areas

Hot Water Cylinder Installation Across Auckland

What Our Customers Say

Cylinder Replacement Reviews

Google Rating
4.8
★★★★★
Based on 222+ Reviews
100% Recommended on Facebook
Write a Review
A
Ann Gallagher
★★★★★ Google

Would highly recommend Response Plumbing, very prompted very competitively price but their winning award is for service. They came and removed my very old hot water cylinder (1981) and replaced. No mess no fuss.

J
John Dennis
★★★★★ Google

Truly exceptional service. Prompt response from knowledgeable and experienced staff. Our leaking HW cylinder was removed and fully replaced in 1 and a half days with no fuss, no mess and minimal disruption. What more can we say.

See all our reviews on Google →  ·  Leave us a review ★

Real Job — Recent Work

The Ponsonby Heat Pump Upgrade

A 1990s rusted-out Rheem cylinder, a homeowner ready for an upgrade, and a switch to a modern energy-efficient heat pump system.

Suburb
Ponsonby, Auckland
Service
Hot Water Cylinder Replacement
Time On Site
1 day

A Ponsonby homeowner called us out for a leaking hot water cylinder. When we arrived, the cause was obvious: a 1990s 180-litre Rheem electric cylinder, rusted through at the base and slowly leaking onto the floor. After more than 30 years of service, the tank had reached the end of its life. It was beyond repair — and trying to patch a rusted cylinder is a false economy that always ends in another callout.

Rather than just like-for-like replacing the old cylinder with another electric one, we sat down with the homeowner and walked through the modern options available: standard electric replacement, gas continuous flow, and heat pump cylinders. We explained the trade-offs in real terms — upfront cost, ongoing running cost, energy efficiency, space requirements, and how each option would affect their power bills over the next 10-15 years.

The homeowner liked the sound of significantly lower running costs and chose an Ecosprings heat pump cylinder — a modern system that uses ambient air to heat water and runs on a fraction of the electricity of a conventional element-driven cylinder. As part of the upgrade, we relocated the entire hot water system from its original location inside the house to a new position outside, freeing up internal space and giving the heat pump the airflow it needs to run efficiently.

The job was completed in a single day by Michael, one of our certifying plumbers. The homeowner went from a leaking 30-year-old cylinder to a brand-new heat pump system, neatly relocated outside, in under 8 hours of work. They'll see the difference on their power bills almost immediately, and the new system comes with full manufacturer warranty plus our 5-year workmanship guarantee.

System Comparison

Which Hot Water System Is Right for You?

A side-by-side comparison of the four main hot water options available in Auckland — upfront cost, running cost, lifespan, and who they suit best.

System Type Upfront Cost Annual Running Lifespan Best For
Electric Cylinder $1,800 – $2,800 $900 – $1,400 10 – 15 years Budget-conscious homes, rentals, simple installs
Gas Continuous Flow $2,500 – $3,800 $600 – $1,000 15 – 20 years Large households, properties with gas connection, never runs out
Heat Pump Cylinder $4,500 – $6,500 $250 – $450 10 – 15 years Most energy-efficient, long-term savings, outdoor space available
Solar Hot Water $5,000 – $8,000 $200 – $500 20 – 25 years North-facing roofs, environmentally conscious, long-term investment

Prices are indicative for an average 3-4 person household, fully installed, including removal of the existing cylinder. Running costs based on typical Auckland usage and current electricity/gas rates. Actual costs vary depending on hot water usage, energy prices, and system efficiency. Heat pump cylinders achieve the biggest savings because they use ambient air to heat water, using 60 to 75% less electricity than conventional electric cylinders.

Compliance & Standards

Hot Water Installations — NZ Code Requirements

Hot water cylinder installation in New Zealand must meet specific standards to ensure safety, energy efficiency, and insurance compliance.

AS/NZS 3500 — Plumbing and Drainage Standard

AS/NZS 3500 is the Australian/New Zealand plumbing and drainage standard covering hot water systems, pipework, pressure, temperature control, and safety valves. All our hot water installations comply with this standard, including tempering valve requirements to prevent scalding.

NZ Building Code Clause G12 — Water Supplies

NZ Building Code Clause G12 sets the performance requirements for water supplies including hot water temperature control. Under G12, hot water delivered to sanitary fixtures used for personal hygiene must not exceed 55°C to prevent scalding. All our installations include compliant tempering valves.

Energy Efficiency Regulations

New Zealand's Energy Efficiency (Energy Using Products) Regulations 2002 set minimum energy performance standards for hot water systems. All cylinders we install meet or exceed MEPS (Minimum Energy Performance Standards) requirements, and we specialise in heat pump hot water systems which are the most energy-efficient option available.

Building Consent Requirements

Under the Building Act 2004, most like-for-like hot water cylinder replacements do not require a Building Consent, but installations involving new pipework, relocation, or conversion between electric and gas systems may require consent. We advise on consent requirements at quote stage and handle applications where needed.

How It Works

Five Steps to a New Hot Water Cylinder

From your first call to a fully installed, tested and certified cylinder — usually completed in a single day.

1

Call and Assess

Tell us your cylinder size, type, age, and the fault. We ask a few quick questions and give you an upfront fixed price before we arrive — no surprises.

2

Options and Quote

We walk you through the best replacement options for your home — electric, gas, heat pump or continuous flow — with honest advice on running costs and long-term value.

3

Remove Old Cylinder

We isolate water and power safely, drain the tank, disconnect old plumbing, and remove the failed cylinder from your property. Area protected and kept tidy throughout.

4

Install New Cylinder

New cylinder positioned, connected to water supply and power, seismic restraints fitted, pressure relief valve tested, and all pipework checked for leaks. Installed to current NZ building code.

5

Test and Certify

Full pressure and heating test, temperature set to safe levels, and PGDB compliance certificate issued. Hot water back on — usually within a single day. Backed by our 5-year workmanship warranty.

Hot Water System Types Compared

A factual comparison of the four main hot water system options available in Auckland.

TypeUpfront CostRunning CostLifespanBest For
Electric Cylinder$1,800–$2,800Medium–High15–20 yearsStandard households, simple replacements
Gas Continuous Flow$2,200–$3,500Medium15–20 yearsLarger families, endless hot water
Heat Pump Cylinder$4,500–$6,500Lowest (70% less)15–20 yearsEnergy-conscious homeowners, long-term savings
Solar Hot Water$5,500–$8,500Very low20+ yearsHomes with good sun exposure
What's Included

What's Included in a Hot Water Cylinder Replacement

Hot Water Cylinder FAQs

Common Questions About Cylinder Replacement

How much does a hot water cylinder replacement cost in Auckland?

Hot water cylinder replacement starts from $2,100+GST fully installed for a Rinnai Infinity A26 gas continuous flow swap. Electric mains pressure cylinders like the Rheem 180L start from $2,957+GST installed. Heat pump systems start from $7,600+GST for the Rheem Ambipower 280E and $8,450+GST for the Rheem HDC270 Ambiheat. All prices include removal of old cylinder, new unit, installation, testing and certification.

What brands do you install?

We supply and install Rheem, Thermann, and Rinnai hot water systems. These are New Zealand's most trusted hot water brands, backed by manufacturer warranties of up to 10 years on the cylinder.

What's included in the fully installed price?

Our fixed prices include the new hot water cylinder or unit, removal and disposal of your old system, installation to existing plumbing in the same location, valve pack and seismic restraints, safe tray (code requirement), testing and certification. Electrical or building work is additional if required.

How long does a hot water cylinder replacement take?

A standard like-for-like cylinder swap typically takes 2 to 5 hours. Upgrades involving relocation, new pipework, or heat pump installation can take a full day. We drain the old cylinder, remove it, install the new one, connect all pipework and electrical, test thoroughly, and restore hot water supply the same day — meaning you have hot water again by the evening.

Should I switch from electric to gas hot water?

Gas continuous flow systems like the Rinnai Infinity provide unlimited hot water on demand and are more energy efficient for many households. However, switching from electric to gas requires gas pipework installation which adds to the cost. We can advise on the best option for your property and usage.

Do you offer same-day cylinder replacement?

Yes, in most cases. We carry common cylinder models in stock and can often complete a same-day replacement — especially for like-for-like electric cylinder swaps. Call us in the morning and have hot water by evening.

Which hot water system is best for my home?

The best system depends on household size, energy efficiency goals, available space, fuel availability, and budget. Electric cylinders are cheapest upfront. Gas continuous flow never runs out of hot water and is great for larger households. Heat pump cylinders are the most energy-efficient and cheapest to run long-term. Solar hot water works best for north-facing roofs.

Can I upgrade from electric to gas hot water?

Yes — provided your property has a gas connection or room for LPG cylinders. The upgrade involves removing the old electric cylinder and installing a gas continuous flow system or gas cylinder, running new gas pipework, and getting gas compliance certification. We handle the full process including coordination with gas network providers.

Do heat pump hot water cylinders work in cold weather?

Yes. Modern heat pump hot water cylinders work efficiently down to about 5°C ambient temperature. Auckland rarely experiences temperatures that affect performance. In colder areas, split-system heat pumps or hybrid systems are used to maintain efficiency through winter.

What size hot water cylinder do I need?

A general guide: 1-2 people: 135 to 180 litres. 3-4 people: 180 to 250 litres. 5-6 people: 250 to 300 litres. 7+ people: 300+ litres or continuous flow. Factors affecting size include shower length, bath use, dishwasher/washing machine usage, and peak-time demand. We help size correctly based on actual household needs.

Can I install a hot water cylinder myself?

No. Under New Zealand law, hot water cylinder installation must be carried out by a registered plumber. Incorrect installation creates serious safety risks including scalding, cylinder explosion, and water damage. It also voids your insurance and the manufacturer's warranty. Always use a PGDB-registered plumber.

Do new hot water cylinders come with a warranty?

Yes. Most new hot water cylinders come with a 7 to 10 year manufacturer's warranty on the tank, and 1 to 3 years on components. Our installation work is covered by a 5-year workmanship warranty. We register all warranties on your behalf and provide full documentation.

How much can I save with a heat pump hot water cylinder?

Typical Auckland households save $600 to $1000 per year on power bills by switching from electric to heat pump hot water. That's 60 to 75% less electricity for the same amount of hot water. Over 15 years of ownership, the cumulative savings often exceed the entire upfront cost of the system.

What brand of hot water cylinder is best?

The main brands we install in Auckland are Rheem, Rinnai, Bosch, Ecosprings (heat pump), and Paloma. Rheem and Rinnai are reliable, widely serviced, and have strong warranties. Ecosprings is our preferred heat pump brand for energy efficiency. We recommend based on your specific needs rather than pushing one brand.

Can I relocate my hot water cylinder during replacement?

Yes. Replacement is often the best time to relocate a cylinder, especially if moving it outside frees up internal space or improves heat pump airflow. Relocation involves new pipework runs, potentially new electrical, and consideration of access for future servicing. We quote relocation as part of the full replacement job.

Auckland's Hot Water Installation Specialists

Hot Water Cylinder Replacement in Auckland

When your hot water cylinder fails beyond repair, you need a replacement that's done properly, priced fairly, and installed fast. Response Plumbing supplies and installs Rheem, Thermann, and Rinnai hot water systems across Auckland at fixed fully-installed prices — so you know exactly what you're paying before we start.

Our fixed pricing covers everything: the new cylinder, removal and disposal of your old unit, installation to your existing plumbing, valve pack, seismic restraints, safe tray, and full testing and certification. For gas installations, this includes gas compliance certification by our certifying gas fitters. No hidden extras, no surprises on the invoice.

We offer same-day hot water cylinder installation in most cases. Whether you need a standard like-for-like electric mains pressure swap, a low pressure cylinder replacement for an older Auckland home, or an upgrade from electric to a Rinnai Infinity gas continuous flow system — we carry common models in stock and can have your new system running by evening.

Response Plumbing has been replacing hot water cylinders across Auckland for over 12 years — from apartments in Takapuna to family homes in Henderson, villas in Ponsonby to new builds in Flat Bush. Every installation backed by up to 10 years manufacturer warranty on the cylinder and our 5-year workmanship warranty on the installation. Rated #1 on MoneyHub NZ with a 4.8-star Google rating from 222+ verified reviews.

Related Articles

How to Tell If Your Hot Water Cylinder Needs Replacing · How to Choose the Right Water Cylinder · Gas vs. Electric Hot Water Systems

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