For Wellington homeowners looking for an efficient, continuous hot water solution, the Rinnai Infinity range is often a top contender. Renowned for its reliability and energy efficiency, this gas-powered hot water system is ideal for homes throughout the Wellington region.
Whether you’re upgrading an old system or building new, this guide walks you through everything you need to know about installing a Rinnai Infinity in Wellington, from selecting the right model to long-term maintenance tips.
Understanding Rinnai Infinity Hot Water Systems
What Is a Rinnai Infinity System?
The Rinnai Infinity is a continuous flow hot water system that heats water on demand using natural gas or LPG. Unlike traditional storage systems that keep a tank of water always heated, Infinity systems activate only when a hot water tap is turned on, resulting in significant energy savings and limitless hot water supply.
This technology is especially beneficial in households with varying water usage or limited space for hot water storage.
Key Features and Benefits
Rinnai Infinity units are compact, wall-mounted, and designed for efficiency. Key features include temperature control, low-emission burners, and frost protection — a critical advantage for Wellington’s cooler months. With no water tank, these systems free up valuable indoor and outdoor space, making them ideal for both urban properties and tight spaces.
Why Rinnai Infinity Is Popular in Wellington
Wellington’s unpredictable weather and hilly terrain demand hot water systems that are both durable and efficient. Rinnai Infinity meets these needs by delivering consistent performance in variable climates. The system’s ability to handle fluctuations in water pressure, common in Wellington’s older suburbs, makes it a reliable choice across the region.
Choosing the Right Rinnai Infinity Model
Overview of Available Models in New Zealand
The Rinnai Infinity range available in New Zealand includes various models designed for different household sizes and water demands. Popular models include the Infinity A26, B26, and A16, each offering unique flow rates and energy ratings. Larger homes may benefit from high-capacity models, while smaller dwellings or apartments often suit the compact A16.
Factors to Consider for Wellington Homes
When choosing a model, consider the number of bathrooms, peak usage times, and typical household size. Wellington homes with multiple storeys or large families will require units with higher flow rates to maintain consistent performance. Proximity to the gas source and outdoor exposure should also influence your selection, especially in areas prone to high wind or salt air near the coast.
Gas Supply Requirements and Considerations
Ensure your home has a compliant natural gas or LPG connection before installation. If not, additional work may be required to set up a proper gas supply line, which can affect both timing and cost. Wellington’s established suburbs may have older infrastructure, so a pre-installation inspection is essential.
Preparing for Installation
Site Assessment and Space Requirements
A qualified installer will assess the proposed installation site for adequate clearance, ventilation, and proximity to water and gas supplies. Rinnai Infinity systems are typically mounted externally but may also be installed internally with proper flueing. Space should allow easy access for maintenance and be free from obstructions or excessive exposure to weather.
Compliance with Wellington Building Codes and NZ Standards
Installation must comply with both local Wellington council regulations and national New Zealand plumbing and gasfitting standards (NZS 5261). It’s vital to use a certified gasfitter and plumber to ensure full compliance and safety. Any deviations could affect your insurance or eligibility for warranties.
Choosing a Certified Rinnai Installer in Wellington
Only use Rinnai-accredited installers for your installation. Not only does this ensure quality workmanship, but it also protects your warranty and gives you access to ongoing support. Ask for local references or check online reviews for Wellington-based installation professionals before booking.
Step-by-Step Rinnai Infinity Installation Process
What to Expect on Installation Day
Installation usually takes between 4 to 6 hours, depending on complexity. The process begins with removing any existing hot water system, preparing pipework, and mounting the new unit. Installers will connect the gas, water, and electricity (if applicable), followed by full system testing.
Plumbing and Gas Fitting Essentials
Proper connections are critical for safety and efficiency. Wellington’s terrain and weather can affect pipe layout, especially in homes with limited access. Installers may need to insulate pipes or modify gas lines to ensure the system operates safely and within compliance standards.
Post-Installation Testing and Certification
After installation, the system undergoes pressure testing, leak detection, and temperature checks. You should receive a compliance certificate, warranty documentation, and a walkthrough of how to use and maintain the unit.
Costs and Budgeting for Your Installation
Typical Price Range in Wellington
Installing a Rinnai Infinity system in Wellington typically costs between $2,800 and $4,500, depending on the model, site complexity, and any upgrades needed for gas or plumbing infrastructure. The cost includes the unit, labour, and compliance documentation.
Hidden Costs to Watch Out For
Potential hidden costs include upgrading your gas meter, relocating pipework, or installing additional ventilation for internal systems. Be sure to get a detailed, itemised quote upfront to avoid surprises.
Rebates, Financing Options, or Energy Efficiency Incentives
Check with your local council or energy provider for rebates or incentives related to energy-efficient upgrades. Some installers offer financing plans to spread the cost, which can make upgrading more manageable.
Aftercare and Ongoing Maintenance
Regular Servicing Recommendations for Wellington Conditions
To maintain peak performance, schedule servicing every one to two years. Wellington’s salt-laden coastal air can corrode external units over time, so regular inspections help prevent long-term damage.
Common Issues and How to Troubleshoot Them
Common issues include ignition failure, low water pressure, and temperature inconsistencies. Many problems can be resolved by resetting the unit or checking for blocked filters, but persistent faults should be assessed by a licensed technician.
How to Maximise Efficiency and Lifespan
Use tempering valves to control output temperatures, insulate outdoor pipes, and avoid running multiple taps simultaneously to optimise flow. Regular maintenance and descaling can extend the unit’s lifespan well beyond the average 15-20 years.
Expert Advice from Wellington Installers
What Local Professionals Recommend
Wellington installers often recommend installing frost protection features and placing the unit in a sheltered location. Some also advise pairing the system with solar pre-heating or water-saving tapware for enhanced energy efficiency.
Mistakes to Avoid During Installation
Common mistakes include undersizing the unit, incorrect pipe layout, and placing the unit too far from high-use areas. These errors can lead to pressure drops, long wait times for hot water, and reduced system efficiency.
Real-Life Case Studies from Wellington Homes
One Wellington homeowner in Karori reported saving over $200 annually on energy bills after switching from an electric cylinder to a Rinnai Infinity B26. Another in Island Bay highlighted the unit’s fast heat-up time and minimal maintenance needs, even during winter.
Final Thoughts on Installing a Rinnai Infinity in Wellington
A Rinnai Infinity installation is a smart, future-proof investment for Wellington homes. Its continuous flow system, energy efficiency, and compact design make it ideal for the region’s diverse housing styles and weather conditions. By selecting the right model, working with certified installers, and following proper maintenance practices, you can enjoy reliable, on-demand hot water for years to come.
