eHaus are NZ leaders in PassivHaus Design & Construction. An eHaus designed and built home offers the healthiest an most comfortable space. A constant indoor temperature between 20-25 deg Celsius all year round throughout the whole house. Every eHaus is designed and constructed using the International Passive House design software. Measured proven performance to live by. Giving you the confidence to know how your house is going to perform before a single stake is put in the ground. With no mould or condensation the smartest mechanical heat recovery ventilation system silently removes 98% of Pollutants from the air giving you peace of mind for the healthiest home. In addition these homes are the most energy efficient homes in New Zealand, requiring little to no active heating. Utilising the heat energy generated daily from cooking, washing, appliances and body heat and with the mechanical heat recovery ventilation system operates 24 hours to retain & reuse up to 90% of this heat energy, while replacing the entire volume of air in the home once every 3 hours with fresh filtered air. The energy required to run this system is the same as running a light bulb. Energy efficiency at its highest.