Heat Pump FAQ

Heat pumps work by moving heat from one location to another using a refrigeration cycle. In heating mode, they extract heat from outside air (even in cold weather) and transfer it inside. In cooling mode, they reverse this process, removing heat from inside your home. This makes them 3-4 times more efficient than traditional electric heaters because they move existing heat rather than creating it.

Heat pump sizing depends on your room size, ceiling height, insulation quality, and local climate. As a rough guide: 2.5kW for 10-15m², 3.5kW for 15-25m², 5kW for 25-35m², and 7kW+ for larger spaces. Use our size calculator for a precise recommendation based on your specific situation.

Heat pump installation costs in NZ typically range from $3,000-$8,000 including the unit and professional installation. Entry-level single room units start around $3,000, mid-range units cost $4,000-$6,000, and premium multi-zone systems can reach $8,000+. Get free quotes from certified installers to compare prices.

Heat pumps typically use 0.8-2.5kW of electricity per hour depending on the unit size and efficiency rating. A 3.5kW heat pump usually consumes about 1kW per hour in heating mode. This makes them much more efficient than traditional electric heaters, which consume the same amount of power they produce.

Yes, modern heat pumps work effectively in NZ winters, even when temperatures drop below freezing. Quality units can extract heat from air as cold as -15°C. However, efficiency decreases in very cold weather, so they work best in conjunction with good insulation and may need backup heating in extreme conditions.

Regular heat pump cleaning involves: 1) Cleaning or replacing air filters monthly, 2) Wiping down the indoor unit with a damp cloth, 3) Clearing debris from the outdoor unit, 4) Professional deep cleaning annually. Never use water directly on electrical components - switch off power first.

An inverter heat pump can vary its compressor speed to match heating/cooling demands, rather than simply turning on/off. This makes them more energy efficient, quieter, and provides better temperature control. Inverter models cost more upfront but save money long-term through lower running costs.

Yes, heat pumps naturally dehumidify when in cooling mode by condensing moisture from the air. Some models have dedicated dehumidify settings that remove moisture without significantly cooling the room. This can help with dampness issues, especially in coastal areas of New Zealand.

Top heat pump brands in NZ include Mitsubishi Electric (known for reliability), Fujitsu (excellent efficiency), Panasonic (advanced features), and Daikin (commercial-grade quality). The 'best' brand depends on your budget, room size, and specific needs. Compare all major brands to find your ideal match.

Quality heat pumps typically last 15-20 years with proper maintenance. Factors affecting lifespan include installation quality, usage patterns, maintenance frequency, and environmental conditions. Regular servicing by qualified technicians can extend the life and maintain efficiency.