Coburg Comfort Upgrade House 2024

House Notes – Coburg Comfort Upgrade House

Our home is a typical suburban house built in 1930 and renovated in 2010. Since purchasing in February 2021 we have improved the thermal performance of the house by draughtproofing, replacing all the downlights to IC-4 rated lights, insulating the ceiling and retrofitting double glazing in all windows and doors. We changed both the shower heads to ultra low-flow shower heads and use tank water to water the garden. We have planted a native garden in the front yard.

In 2021 we converted the house to fully electric by adding solar, converting the instant gas to a heat pump hot water service, retrofitted the existing gas stove/electric oven with an induction stovetop, and augmented the ducted RCAC with a split system for the back half of the house.

Before insulating we removed the gas ducted heating system to improve our insulation coverage and hope to reclaim the space where the decomissioned gas fireplace resides soon. Our next big projects will involve depaving the concrete in the back yard and adding honeycomb blinds to improve the thermal performance of our house in winter.

Since going off gas we have net $0 in energy bills. We hope to add an EV soon, ideally one that will allow V2H or V2G, virtually eliminating the need to import energy from the grid as we export most of the energy our solar produces.

Our house shows that it is possible to continually improve older houses to be comfortable with low running costs. By visiting our house you can see how we created a unique retrofit to an induction stovetop while utilising our existing oven, what it looks like to use Thermawood to retrofit double glazing in both new and heritage wood windows, and hear the steps we’ve taken to take our home off-gas.

Representatives from Thermawood will be on-site to answer questions, as will energy efficiency experts from Merri-bek and My Efficient Electric Home.

Sustainability Features

Years Open
2024
ENERGY AND WATER EFFICIENT FEATURES
    • Energy efficiency:
    • Draught proofing
      Efficient lighting
      Efficient appliances
      Energy monitoring
      Smart home features
    • Passive heating cooling:
    • Cross ventilation
      Passive solar designed home
    • Active heating cooling:
    • Ceiling fans
      Heat pump
      Split system airconditioner
    • Water heating:
    • Hot water heat pump
    • Water harvesting and saving features:
    • Rainwater storage - Above ground
      Low flow shower heads
    • Average water consumption per day:
    • 60L
    • Above ground rainwater storage Size
    • 5000L
    • Energy Efficient Lighting
    • LED lights throughout
      Natural daylight
      Tubular skylight
SUSTAINABLE & RECYCLED MATERIALS
    • Recycled and reused materials:
    • Light fixtures / fittings
INSULATION SPECIFICATIONS
    • Insulation Type:
    • Ceiling
    • Ceiling Type:
    • Bulk – glass wool
    • Ceiling Rating:
    • R4
RENEWABLE ENERGY SPECIFICATIONS
    • All-Electric Home?
    • Yes
    • Renewable energy used:
    • Solar PV grid connect
    • Size of PV system:
    • 8.8kW
    • Average Daily Energy Consumption:
    • 1.5kWh/day (from grid)
HOUSE DESIGN SPECIFICATIONS
    • House Size
    • 202m2
    • Roof
    • Tiles (Clay)
    • Wall Materials
    • Lightweight construction (timber frame)
    • Window and Door Types
    • Casement
      Retrofit Double Glazing
      Stacking windows/doors
      Sun Tunnel/SolaTube
    • Number of bedrooms
    • 4
    • Number of bathrooms
    • 2
GARDEN AND WASTE REDUCTION
    • Garden / Outdoors
    • Chickens
      Composting
      Edible garden
      Native plants
      Water wise plants
      Wicking beds
      Worm farm
    • Waste Reduction Practices:
    • Compost all food scraps
      Recycle
      Repair
      Take own containers to the supermarket and for take away food
      Swap with friends and neighbours
HEALTHY HOME FEATURES
    • Healthy home features
    • Cross flow ventilation
      Indoor plants for air filtration
      Low VOC paints/sealer/varnish
      Natural light and ventilation
Location
Coburg VIC 3058
    • Housing Type:
    • Standalone House
    • Project Type:
    • Continual Improvement

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