Firewood vs Heat Pump: Which Is Cheaper to Run in New Zealand?

In larger homes or poorly insulated properties, homeowners may find themselves running heat pumps for many hours each day (and night) to maintain a comfortable temperature.

As winter approaches, many New Zealand homeowners start asking the same question:

Is it cheaper to heat your home with firewood or a heat pump?

With power prices continuing to rise and households looking for ways to reduce their winter expenses, it's a question worth exploring. The truth is there isn't a one-size-fits-all answer. The most cost-effective heating option depends on your home, your location, your lifestyle, and how you use your heating system.

Let's take a closer look at the pros, cons, and costs of both heating methods to help you make an informed decision.

Why Heating Costs Matter More Than Ever

For many Kiwi households, winter is the most expensive time of year. Shorter days, colder temperatures, and increased indoor living can send power bills soaring.

According to Consumer NZ, heating accounts for a significant portion of household energy use during winter, making it one of the biggest contributors to seasonal power bills. Finding an efficient way to heat your home can have a noticeable impact on both comfort and household budgets.

How Much Does a Heat Pump Cost to Run?

Heat pumps are often promoted as one of the most energy-efficient heating options available. Rather than generating heat directly, they transfer heat from the outside air into your home, making them highly efficient under the right conditions.

Advantages of heat pumps include:

·      Convenient operation

·      Instant heat

·      Low maintenance

·      Energy efficiency

·      Cooling functions during summer

However, heat pumps still rely entirely on electricity. They also need maintenance and the right number to heat your home from top to bottom. As electricity prices increase, so too does the cost of operating a heat pump for extended periods throughout winter.

In larger homes or poorly insulated properties, homeowners may find themselves running heat pumps for many hours each day (and night) to maintain a comfortable temperature.

How Much Does Firewood Cost to Heat a Home?

Wood burners remain one of New Zealand's most popular heating solutions, particularly in regions that experience colder winters. Unlike electric heating, firewood provides a renewable fuel source that many homeowners prefer for both comfort and cost management.

A well-operated wood burner can:

·      Produce significant heat output

·      Warm large areas effectively

·      Continue generating heat during power outages

·      Create a comfortable, radiant warmth throughout the home

·      Able to easily cope with heat transfer ceiling systems to pump warm air around the entire home.

The overall cost of heating with firewood depends on several factors, including the type of wood being burned, the quality of seasoning, and the efficiency of the fireplace.

Why Firewood Quality Matters

Not all firewood performs equally.

Burning properly seasoned firewood can significantly improve:

·      Heat output

·      Burn time

·      Fireplace efficiency

·      Chimney cleanliness

Poor-quality or wet firewood often produces more smoke, less heat, and increased creosote buildup in chimneys. When purchasing firewood, it's important to choose wood that has been properly seasoned and stored.

At The Firewood Company, popular options include:

·      Seasoned Pine

·      Gum

·      Macrocarpa

·      Wattle

·      Mixed Gum and Pine

·      Kiln-Dried Pine

Each offers different benefits depending on the heating needs of the household.

Which Heating Option Is More Cost Effective?

The answer depends largely on how you use your heating.

Heat Pumps May Be More Cost Effective If:

·      You live in a well-insulated home

·      You only need to heat one or two rooms

·      You prefer convenience and automation

·      You use heating for shorter periods

Firewood May Be More Cost Effective If:

·      You need to heat larger living areas

·      You have access to quality seasoned firewood

·      You use heating for extended periods each day

·      You live in colder parts of New Zealand

·      You want protection against rising electricity prices

Many homeowners find that a wood burner can produce substantial heat for long periods, making it a cost-effective option for winter heating.

Why Many New Zealanders Use Both

Increasingly, homeowners are combining heating methods rather than relying on a single solution.

For example:

·      Heat pumps provide quick warmth in the morning.

·      Wood burners provide sustained heating during evenings and colder winter days.

This hybrid approach allows homeowners to maximise comfort while managing energy costs more effectively.

The Comfort Factor

Cost is important, but comfort should also be considered. Many people describe wood burner heat as feeling different from heat pump warmth.

A wood burner creates radiant heat that warms furniture, walls, and living spaces, often resulting in a cosy atmosphere that many New Zealand families enjoy throughout winter.

Heat pumps provide steady temperature control but may not create the same feeling of warmth that some homeowners prefer. Ultimately, comfort is a personal choice (but let’s be honest, can you beat the sound and feel of a crackling fireplace)?

Other Factors to Consider

When comparing firewood and heat pumps, it's worth considering:

1. Power Outages

Heat pumps stop working when the power goes out. Wood burners continue to operate regardless of weather events or electricity disruptions.

2. Home Size

Larger homes often require more heating capacity. A wood burner can effectively heat substantial living areas, while multiple heat pumps may be required in larger properties.

3. Environmental Considerations

Modern wood burners and properly seasoned firewood can provide an efficient heating solution when operated correctly. Using dry firewood helps reduce emissions and improve burn efficiency.

What Is the Cheapest Way to Heat Your Home in New Zealand?

There is no single answer that applies to every household. For some homeowners, a heat pump will provide the most affordable solution. For others, particularly those heating larger spaces during colder winters, a wood burner fuelled by quality seasoned firewood may offer better value.

The most important factor is ensuring your heating system is operating efficiently and that your home is properly insulated.

Heatpumps Vs Wood Burners

Both heat pumps and wood burners have their place in New Zealand homes.

Heat pumps offer convenience, efficiency, and year-round functionality, while wood burners provide powerful heating, energy independence, and the comfort many Kiwi families associate with winter.

If you're relying on a wood burner this winter, ensuring you have quality seasoned firewood on hand before the cold weather arrives can help maximise heat output and efficiency throughout the season.

After all, the cheapest heating option is often the one that's prepared before the first cold snap hits.

Further Reading

Consumer NZhttps://www.consumer.org.nz

Energy Efficiency and Conservation Authority (EECA)https://www.eeca.govt.nz

New Zealand Home Heating Guidehttps://www.energywise.govt.nz