Skip to main content


Ideal for those looking for energy efficient water heating


The Altherma R HW domestic hot water heat pump is the best replacement for an electric hot water cylinder. Featuring 85% hydropower for a greener, more energy-efficient approach to heating your domestic hot water supply.

Contact Us


Fresh water principle: The pressureless water tank is an ideal hygienic solution since the domestic hot water circuit is separated from water storage. As a result of the continuous hot water flow in the INOX heat exchanger, there is no corrosion or scale build up.

Installation Process

We follow an easy 4 Step process to installing your air conditioning system in your home. We place great importance on leaving your home in the same or better condition than we found it.

Easy Installation

Pressure-less water tank and limited pressure in the heat exchanger. Low maintenance: no anode means no scale and lime deposits or corrosion. Compact and designed with additional controls for easy installation and maintenance.

Energy Efficiency

Heat pump extracts renewable energy from the outside air to produce hot water. Increase energy saving and efficiency by connecting the unit to solar panels.

Talk to FAS Energy Today

Looking for a heat pump, air conditioner and ventilation system for your family home at the best price? We offer a free in home no obligation quotes throughout the Christchurch & Wellington regions. Talk to FAS Energy, your trusted local installers, today and we will design the best heating and cooling solution for your family home.

Send Us A Message