John’s Energy Efficient House 2023

John’s Energy Efficient House

My aim was to build an energy efficient, comfortable home within a modest budget. To this end a standard design of a high volume builder was selected and modified during the design and construction, as well as after completion.

These included:

• In the design stage – double glazing, extra insulation, north facing aspect, no gas and cool roof were specified.
• During construction – taping wall wrap & roof sarking, sealing slab to wall, sealing pipe openings & fitting internal wall insulation were undertaken.
• After completion – extra ceiling insulation, garage door insulation, draft proofing, roller shutters, blinds & 41 photovoltaic panels were fitted.

Future energy improvements include removal of roof whirlybird, draught proofing internal sliding door and fitting awning over external south door.

A large PV system was fitted as I am often home during the day, the home is all electric, has a battery and I drive an electric car. After a sunny August day no evening heating is required. The living area of the house is 20 degrees through the evening and, even though the outside overnight temperature gets down to 4 degrees, the living area is 18 degrees in the morning.

Self guided tour notes are provided.

Donations on the day will go to Friends of the Cerberus Inc.

This house achieved a NatHERS rating of 7.1 stars using NatHERS accredited software (FirstRate5). Find out how the star ratings work on the Nationwide House Energy Rating Scheme (NatHERS) website.