EVOHX Hydronic Systems – FAQ

Hydronic heating and cooling is an HVAC system that uses water as the medium to transfer heat throughout a building. An energy-efficient heat pump heats or cools water, which then circulates through pipes to fan coil units, radiators, or underfloor systems to provide comfortable, even temperatures.

An EVOHX heat pump heats or cools water, which is then pumped through a network of pipes to various indoor units (fan coils, radiators, etc.). The units blow air over the water coil (for heating/cooling) or radiate heat (radiators), delivering comfort exactly where you need it. The system can be divided into zones, allowing independent temperature control in different areas of your home.

EVOHX hydronic systems offer exceptional energy efficiency, superior comfort with even temperatures, zone control for personalised heating/cooling, versatility to integrate with various indoor units, and all‑season performance—both heating in winter and cooling in summer.

Yes, hydronic systems are highly energy efficient. Water is a very effective thermal conductor, requiring less energy to move heat compared to air. EVOHX heat pumps achieve high seasonal performance factors (SPFs), meaning you use less electricity to achieve the same comfort level, leading to lower energy bills and reduced environmental impact.

Absolutely. EVOHX hydronic systems are designed for year‑round comfort. The same heat pump can supply chilled water in summer for cooling through fan coil units, and hot water in winter for heating via radiators, fan coils, or underfloor systems.

EVOHX offers a wide range of indoor units to suit any home: ceiling‑cassettes, ducted systems for whole‑home comfort, high‑wall units for single rooms, and stylish radiators and towel rails for radiant heating. You can mix and match units to create a custom solution.

Yes, hydronic systems can be retrofitted into existing homes. While installation may be more involved than in new builds, experienced installers can work with your home’s layout to run pipes and place units with minimal disruption. Contact EVOHX for a design consultation.

The cost varies depending on the size of your home, the number and type of indoor units, and the complexity of installation. While the upfront investment may be higher than some conventional systems, the long‑term energy savings and increased comfort often make it a cost‑effective choice. Contact EVOHX for a free quote tailored to your needs.

Maintenance is generally simple. Regularly clean or replace air filters in fan coil units, check for any leaks in visible pipes, and have a professional service the heat pump every 1–2 years to ensure optimal performance. Your installer can provide specific guidance.

Yes, EVOHX is building a nationwide network of qualified installers. We serve customers across New Zealand. Contact us to find an installer near you or to discuss your project.

You can request a quote by filling out the contact form on our website, emailing sales@evohx.co.nz, or calling +64 9 558 5590. We’ll be happy to discuss your needs and provide a customised solution.