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We install and replace gas hot water systems across Auckland for homes and businesses. Our licensed gasfitters provide fast, reliable installations with clear pricing, full compliance, and NZS 5261 / AS/NZS certification.
Why Upgrade to Gas Hot Water in Auckland?
Tired of cold showers or high power bills from an outdated electric cylinder? Many Auckland homes still run on old systems that can’t keep up with family demand. The result is wasted water, long wait times, and hot water running out when you need it most.
A gas hot water installation solves these issues. Continuous flow units provide endless hot water on demand, while gas storage systems suit larger households with heavy peak use. They heat faster, save space, and can lower running costs depending on your energy tariffs. With the right setup, hot water reaches your taps quicker and with less waste.
Flowpro’s licensed gasfitters deliver fast, compliant installations, backed by 24/7 availability, strict health and safety standards, and over 15 years of local experience. If you’re ready for reliable hot water in your home, now is the time to make the switch.
Which Gas Hot Water System Fits Your Home?
Choosing the right gas hot water system depends on how much hot water your household uses and when you use it. Flowpro installs both continuous flow units and gas storage cylinders, with each option offering different advantages.
For bigger models, check your home’s minimum water pressure and gas supply capacity. Some installations may require a dedicated gas line to safely meet input ceilings.
Flowpro’s licensed gasfitters will assess your household needs, site layout, and compliance requirements to recommend the right system. Whether you choose continuous flow or gas storage, you’ll get a solution that’s safe, efficient, and installed to New Zealand standards.
How to Choose the Right Size Gas Hot Water System
Getting the right size gas hot water system is the key to avoiding cold showers and wasted money. If the unit is too small, it won’t keep up with demand. Too big, and you’ll pay more than you need to in both upfront and running costs.
The most important factor is the flow rate (litres per minute – L/min). This measures how much hot water the unit can deliver when multiple taps or showers are used at the same time.
Use this quick guide to match your household size and bathroom setup with the right gas hot water flow rate.
| Household Use | Recommended Size |
| Small home, 1 bathroom, 1–2 people | 16 L/min |
| Medium home, 1–2 bathrooms, 3–4 people | 20–24 L/min |
| Large family home, 2+ bathrooms, 4–6 people | 26 L/min+ |
Several factors can influence the size of gas hot water system your home requires. Here are the most important ones to consider.
At Flowpro, we assess your household needs, check your gas supply, and recommend the right size system so you always have reliable hot water.
Installing a new gas hot water system with us is simple. Here’s what you can expect from start to finish.
Areas We Service
We provide plumbing, gasfitting, and drainage services across all Auckland suburbs. No matter where you’re located, our licensed team can reach you quickly for reliable service and repairs.
Our licensed and SiteWise-accredited plumbers deliver fast, reliable results with no hidden costs. Skilled in handling high-difficulty jobs, we make it easy to get your plumbing sorted quickly and safely. Contact us now to get a fast quote or book your plumber today.
The cost of a gas hot water installation in NZ depends on the system size, location, and whether it is a new install or a conversion from electric. On average, a standard install ranges from a few thousand dollars upwards, with extras such as long flue runs or additional controllers adding to the total.
Our team provides fixed-price quotes so you know the cost upfront before work begins. We always explain what is included and what may be an additional cost. This way you can make an informed decision without surprises.
Most standard gas hot water installations are completed in a single day. More complex conversions, such as moving from an old electric cylinder to a continuous flow system, can take longer depending on site access and gas line requirements.
Our team plans ahead to minimise disruption to your home. We confirm the expected timeframe before starting work so you know what to expect. In most cases, you will have hot water running again by the end of the day.
Gas hot water units must be installed in locations that meet New Zealand safety and compliance regulations. There are minimum clearance requirements from windows, doors, and ventilation points, and the flue must be correctly positioned.
Our team assesses your property to find the best compliant location for the unit. In most cases, we can install the system outside your home where space and venting are suitable. This ensures the installation is both safe and effective.
Yes, LPG is a common option for homes that do not have natural gas connections. Continuous flow and storage units can both run on LPG, but bottle size and availability must match your household demand.
Large families may need bigger bottles or a changeover system to keep up with hot water use. We help you choose the right setup based on your location and usage. This way you get reliable hot water whether you are on mains gas or LPG.
Our team is ready to respond quickly and get your plumbing, gas, or drainage issues sorted fast. No delays, no guesswork—just expert help when you need it.
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Flowpro Plumbers & Gasfitters is a trusted team of certified plumbers and gas fitters serving Auckland and surrounding areas. From everyday repairs to full renovations, we deliver reliable service, honest advice, and quality workmanship you can count on.
