Heat pumps are the most energy-efficient electric heating option on the market. For every unit of electricity they use, they produce three to four units of heat. They cool in summer too, which makes them the most practical all-round system for Canterbury homes. Running costs vary by size: a large 10kW+ unit might run to around $1,000 a year; a smaller 2.5kW unit can cost under $200. If you are heating one or two rooms and want something that works year-round without burning through your power bill, this is where most people land.

If a split system heats a room, a ducted system heats the whole house — evenly, quietly, and without a wall unit in sight. Air is conditioned centrally and distributed through ceiling or underfloor ducts. This is the go-to for larger homes or anyone who wants invisible heating with precise zone control. Small systems around 100m² start around $12,000 installed; larger homes 180m²+ can push toward $16,000. The upfront cost is real, but so is the comfort difference.

A good wood burner delivers serious heat, and firewood remains one of the cheaper fuels available. Modern low-emission designs have made them far cleaner than older models — though in Christchurch City, Ultra-Low-Emission Burners are required to meet air quality standards. Under 10kW suits a well-insulated home up to around 120m²; anything larger or less well-insulated needs a bigger unit. Freestanding models distribute heat more efficiently than insert models, which can lose some warmth up the chimney. Factor in chimney cleaning and a consistent firewood supply.

Modern gas fires are efficient, instant, and genuinely good looking. They suit new, well-insulated homes where a single high-output focal point can carry the living space. Push a button, get heat — no kindling, no waiting. They run on LPG or natural gas, which means fuel supply is something to confirm before you commit. They also need electricity to operate, so keep that in mind for outage situations.

Electric fires are largely decorative. They look good, need no flue, and are easy to install — but their heat output is low, and they are not a primary heating source for a Canterbury winter. Where they work well is as a feature piece in a room that already has central or ducted heating, adding ambience without the complexity of a flue or gas connection.

Pellet fires burn compressed wood pellets for clean, efficient heat with minimal emissions. They are more automated than a wood burner — many have automatic ignition, programmable timers, and feed the fuel themselves. The result is a system that feels almost as convenient as gas but runs on a renewable fuel source. The trade-off is dependence on pellet availability and the electricity needed to run the mechanics of the fire itself.

HRV and DVS systems are ventilation, not heating — and that distinction matters. They work by moving air through the house to reduce moisture and condensation, which is genuinely useful. But they also push heat out in the process. For a damp, older home in a warmer part of the country, they can help. For a cold Canterbury home, they are not the answer on their own. Wet rooms like bathrooms and kitchens still need dedicated extraction fans regardless.

Hydronic central heating — where heated water circulates through underfloor pipes or wall radiators — delivers the most even, consistent warmth of any system available. There are no units on walls, no airflow creating draughts. The heat just comes up from the floor or radiates gently from panels around the room. The catch is cost and complexity: retrofitting an existing home is significantly more expensive than building it in from day one, and not every flooring type is compatible with underfloor systems.

Portable electric heaters are the cheapest to buy and the most expensive to run. They are fine for occasional use or as a stopgap in a small room, but anyone relying on them as a primary heat source through a Canterbury winter will feel it in their power bill. Use them for what they are good at — convenience and portability — and not as a substitute for a proper heating system.