House finished 1

EHAUS PACIFIC

Hawkes Bay Hatuma

Carbon Savings

19,835 KG

Heat Savings

78%

Because of the elevated site this home has incredible views over Hatuma Lake and the surrounding rural landscape and on to the east coast. This is where attention to detail with the fabric of the building especially  airtightness really pays dividends. Every eHaus is tested at a pressure of 50 Pascals simulating a force 5 wind on the Beaufort scale. A wind like that would not be unusual in this location! 

The home has 3 bedrooms including the master, a lovely feature is the reading room a prefect place to curl up with a good book. "The property we bought to build our new house on it was extremely exposed, very windy and we knew that the eHaus was going to be the right one for our situation. Our experience was excellent from the moment we joined the information evening we got a lot of good information that helped us to decide to build with eHaus" Randall & Mary

"

The property we bought to build our new house on it was extremely exposed. The climate is horrendous and very windy, and we knew that the eHaus was going to be the right one for our situation. Our experience was excellent from the moment we joined the information evening, we got a lot of good information that helped us to decide to build with eHaus. We absolutely love our eHaus, it is just the best place to be living, it’s got a really different feel to it. We’re really loving being here.

"

— Randall and Mary Sherratt

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 0.183 W/(m²K)
Wall
140mm timber frame with service cavity U-value of 0.221 W/(m²K)
Roof
Double layer of fibreglass insulation U-value of 0.159 W/(m²K)
Window Joinery Frame
APL- Thermally broken aluminium- Uf value = 4.30 W/(m²K)
Glazing
Double Glazed Argon Ug value=1.12 W/(m²K) G value = 61%
Ventilation
Zehnder Comfo Air 350 LH MHRV
Hot Water
Bosch Compress 3000 – 270L capacity heat pump hot water cylinder to supply bathrooms and Rinnai Infinity VT16 gas instantaneous water heater to supply kitchen and laundry
Heating/Cooling
Panasonic 1.37kW Mini Cassette heat pump ceiling mounted
Power Generation
10 kW solar photovoltaic array and a 8.8 kW generator as backup

Performance Specs

Heating Demand
33.5 kWh/(m²yr)
Heating Load
14.7 W/m²
Frequency of Overheating
2.8 % year over 25C
TFA
169.2 m²
Form Factor
3.6
Air Leakage @ 50Pa
0.88 ACH
Per Demand
47.5 kWh/(m²yr)

Consultant: Maria Rei

Certifier: N/A