File 002

EHAUS EURO, PASSIVE HOUSE PLUS

Waikato Te Kauwhata

Carbon Savings

16,812 KG

Heat Savings

95%

Set in the rolling hills of the Waikato this beautiful off the grid family home ticks all of the boxes. After significant research and gaining confidence from a friend that had built an off the grid eHaus in Manawatu, the owners made the decision to go for it and engaged the eHaus Waikato team.  The clever design of the system means the owner is able to continue with his hobbies which incredibly includes welding which the system copes without any issues. These owners are living the dream in this amazing high performing home generating its own power.
"

We had an enormous amount of sunshine over the summer. When it was 30 degrees Celsius outside we would leave the heat pump going all day on auto – it didn’t cost us a cent, and the house was as cool as a cucumber. After we have been staying with my son in Tauranga, we can feel the difference walking into this house. This is definitely better than a standard house.

"

— Randal and Pam Greenbank

Meet the team Behind this project

Ross designhaus

Ross Bennett

Ross is a specialist in Passive House design and is located in the Manawatū, but works on projects around the country.

Design Components

Floor
Fully insulated concrete pad with a U-value of 0.182 W/(m²K)
Wall
140mm timber frame with service cavity U-value of 0.223 W/(m²K)
Window Joinery Frame
EcoWindows - laminated timber with aluminium outer facade (Wood Alu) Uf value 1.2 W/(m²K)
Glazing
Double Glazed Low E Argon Ug value 1.12 W/(m²K) G Value 61%
Ventilation
Zehnder ComfoAir Q350 MHRV
Hot Water
Reclaim Co² 300L Heat pump
Heating/Cooling
Ceiling mounted 7.8kW Heat pump, Wall mounted 3.2kW Heat pump, 3kW Flame effect electric fire

Performance Specs

Heating Demand
7.7 kWh/m²/yr
Heating Load
9.2 W/m²
Frequency of Overheating
2.6% year over 25C
TFA
212.8 m²
Form Factor
3.53
Air Leakage @ 50Pa
0.5ACH

Consultant: Maria Rei

Certifier: Non certified