Gas To Heat Pump Conversion

Trusted by Wellington homeowners since 2008 for precision designed hydronic heating systems, we are Wellington’s only dedicated hydronic heating company.

How rising natural gas prices are accelerating the move to air-to-water heat pump heating in NZ

With natural gas prices increasing by as much as 40% per kWh in parts of New Zealand, many homeowners are reconsidering how they heat their homes and hot water.

If you currently rely on a gas boiler for hydronic heating, you may already be feeling the impact through higher energy bills and ongoing uncertainty about future price rises.

As a result, more households across Wellington and greater NZ are choosing to replace gas boilers with electric air-to-water heat pumps — a modern, efficient and future-proof heating solution.

Here’s why making the switch makes sense.

🌱 1. Lower Running Costs as Gas Prices Rise

One of the biggest advantages of switching from gas to electric heating is lower operating costs.

Air-to-water heat pumps are extremely efficient. For every 1kWh of electricity they use, they can produce 3–5kWh of heat energy. This efficiency means:

✔  Less energy used overall

✔  Lower monthly heating costs

✔  Protection from volatile gas pricing

As electricity generation in New Zealand continues to shift toward renewable sources, electricity pricing remains more stable than gas — giving homeowners better long-term cost certainty.

♻️ 2. Reduced Carbon Footprint and Cleaner Energy

Gas boilers burn fossil fuels, producing carbon emissions and contributing to climate change.

Air-to-water heat pumps use electricity instead of combustion and can operate largely on renewable energy generated in NZ (hydro, wind and solar). This makes them:

✔  Significantly lower in emissions

✔  Environmentally responsible

✔  Aligned with future energy standards

For homeowners wanting to reduce their environmental impact while still maintaining comfort, heat pumps are a strong solution.

🏠 3. Seamless Upgrade for Existing Hydronic Systems

If your home already has radiators or underfloor hydronic heating, upgrading is often straightforward.

In many cases, existing pipework and emitters can be retained — only the heat source (the gas boiler) is replaced with an air-to-water heat pump and other components.

This means:

✔ Less disruption during installation

✔ Faster installation time

✔ Improved system efficiency

A professional assessment ensures the system is optimised for your home’s heat demand.

💡 4. Improved Safety and Reduced Maintenance

Gas systems involve combustion, flues, ventilation and safety checks. Heat pumps remove these risks entirely.

Benefits include:

✔ No gas leaks or carbon monoxide risk

✔ Fewer mechanical components to fail

✔ Reduced servicing requirements

✔ Quiet, clean operation

This provides peace of mind for families and property owners.

📈 5. Long-Term Energy Security

Gas availability and pricing in New Zealand is becoming increasingly uncertain due to supply constraints and infrastructure changes.

Electric heating provides:

✔ Energy independence from gas networks

✔ Compatibility with solar systems

✔ Future readiness for smart energy systems

✔ Better resale appeal for modern homes

Making the switch now positions your home for the future.

❄️ 6. Consistent Comfort and Excellent Performance

Modern air-to-water heat pumps deliver steady, even heat across the home — ideal for Wellington’s variable climate.

They provide:

✔ Stable indoor temperatures

✔ Efficient low-temperature heating

✔ Excellent performance year-round

✔ Zoned heating control options

When paired with radiators or underfloor heating, comfort levels often improve compared to traditional boilers.