Terraform Air
Air is a home HVAC and hot water system with no running cost. One unit outside the house replaces your heater, air conditioner and hot water service.
Switch It On
Set any room to the temperature you want from the app. Run one room or every room at once. Spare heat goes to your spa, steam room or pool.
Terraform AirStandbyYour house
The outbuilding
On the deck
The rack is running and the loop is at 80 °CSpare heat is there for the outbuilding and the deck
What you would be paying
A$0
a year, running the conventional gear Air replaces
What Air costs you to run
A$0
Terraform pays for the energy, the compute customer pays for the node
Earning
A$0
Nothing is earning
Saved so far today
A$0.00
Nothing is switched on
The earning figures are estimates, and the earning is yours. Terraform sells the drying room and the other three extras and takes no share of what they make. The drying room takes 10 cubic metres, about 5 tonnes of split hardwood, and runs all year: 12 fills, 60 tonnes bought at 20 to 25 percent moisture for A$300 a tonne and sold dry at A$475 a tonne. Drying it takes 4,400 kilowatt hours of heat a year, against the 42,000 the node sheds. The spirulina pond is 10 square metres and 150 millimetres deep, at 2.19 kilograms a square metre a year, the figure from a greenhouse raceway in Gran Canaria. Spirulina is limited by light, so the yield follows the surface and not the depth. That is 21.9 kilograms, sold at A$120 a kilogram against the A$183 that Australian grown powder retails for. Holding the pond at 32 °C under its cover takes about 1.1 kilowatts, near enough 10,000 kilowatt hours a year. The Om spa is the same thing at a quarter the size, 2.8 square metres at 38 °C under an insulated cover, about 2,400 kilowatt hours a year, so it earns nothing and saves about A$720 of electricity at 30 cents. Running the drying room, the pond and the spa together is 16,800 of the 42,000 kilowatt hours the node sheds, and the house takes about 14,000 for its rooms and its water. Prices for the four extras on application.
Inside Air
One cabinet outside holds the computer, the chiller, the pumps and 3,100 litres of water. A slim panel in each room delivers the air. Water carries the heat, so there is no refrigerant gas and no compressor.
The plant enclosure
8 graphics processors, 4.8 kilowatts around the clock, on cold plates in series inside a locked water-jacketed steel enclosure. Terraform owns it, and the compute customers who rent it pay for its power.
The fan coil head unit, one in each room
Full height against the back of the panel, so the air is cleaned on its way through rather than just moved around the room.
Every Watt Works Twice
The computer uses electricity to compute and gives off heat. Air captures that heat for your home. The same electricity does both jobs.
Sources: International Energy Agency (Renewables 2022; Space cooling; Energy and AI, 2025); YourHome, Australian Government.
How It Works
- 1Compute Makes the Heat. A 4.8 kilowatt compute node of 8 graphics processors runs on its own solar panels and mains power. Water cools the processors and carries almost every watt away as heat, in a loop that leaves the last chip at about 80 °C.
- 2Heat Warms Your Home. The loop fills a 1,000 litre buffer at about 75 °C, which holds the hot water cylinder at 60 °C and feeds a fan coil head unit in every room. Add a spa, pool or greenhouse and the same loop heats them too.
- 3Heat Cools Your Home. In summer the same heat drives a silica gel chiller, which makes 14 °C chilled water and banks 1,800 litres of it for the same fan coil head units.
- 4Air Routes the Heat. The controller reads the temperature in every room and in the hot water tank, then sends the heat where it is needed: to the rooms when they are cold, to cooling when they are hot, and to your water, spa or pool in between.
- 5The Glyph Shows the Mode. The Terraform glyph on the face of the unit takes the colour of the air it is blowing, blue as it cools, red as it heats, so you can see what Air is doing from across the room.
No Energy Bill, All Year
Companies rent the computer and pay for its electricity. Terraform pays for the rest. Your heating, cooling and hot water cost nothing to run, saving about A$1,795 a year.
Cooling
A$0 a year, A$130 saved
Heat from the compute node makes cold water, and a fan coil in each room blows cool air through a high-efficiency particulate air filter.
Heating
A$0 a year, A$715 saved
The graphics cards sit in a locked, water-jacketed steel box in the outdoor unit, and their heat warms every room.
Hot water
A$0 a year, A$950 saved
The buffer holds 1,000 litres at about 75 °C, so the cylinder coil keeps your water at 60 °C.
Installation
A plumber and an electrician
Air runs on tap water, and the water carries all of its heat, so a plumber connects it to your water supply and runs a pipe to the fan coil head unit in each room. An electrician runs the 32 amp circuit for the compute node, fits its own meter and notifies your distributor. Terraform fits and owns the solar.
Air Intelligence
The compute node inside your Air is one rack of the Terraform fleet. Linked together, those racks are a data centre spread across buildings that already exist, and compute customers rent their capacity from Terraform. That rent is what pays for your heating, cooling and hot water.
For Owners
- Buy Air upfront or through a government programme.
- Terraform owns and runs the compute node, and the compute customers who rent it pay for its power.
- Terraform pays for your heating, cooling and hot water energy, so they cost you nothing to run.
- You keep all of the heat for your rooms, your water and any extras.
Price and Specification
A$11,999 before A$4,300 of rebates assigned to us. Air replaces A$6,373 of heating, cooling and hot water equipment you would buy anyway, so your premium is just A$1,326.
Put the Extra Heat to Work
Prices installed, and the totals are for Air itself. The four above are priced on application, so tick the ones you want and we will quote them with your Air. Payback is on the premium Air costs above the conventional heating, cooling and hot water gear it replaces. On a gross basis it is 4.3 years.
Specification
| Jobs | Heating, cooling, hot water, refrigeration |
| Working fluid | Tap water |
| Loop temperature | 80 °C off the chips, 75 °C in the buffer |
| Hot water delivered | 60 °C |
| Chilled water | 14 °C |
| Water stores, 3 bedroom house | 300 litres of hot water, 1,000 litres of buffer, 1,800 litres of chilled water, 3,100 litres in all |
| Plant enclosure | About 3.0 metres wide, 2.0 tall and 1.4 deep, on a concrete plinth, with the dry cooler standing separately |
| Fan coil head unit | 1.5 metres tall, 300 millimetres wide and 150 millimetres deep, recessed into the wall and standing about 25 millimetres proud, air out down both edges, one in each room |
| Installation | A plumber on your water supply, and an electrician for a 32 amp circuit, a compute meter and the distributor notification |
| Certification | WaterMark, AS/NZS 3500.4 |
| Patent | WO 2023/115131 A1 |
| Service life | 15 years |
| Compute node | 8 graphics processors, 1,128 gigabytes, 4.8 kilowatts, locked water-jacketed steel enclosure, owned by Terraform |
| Solar | 3.5 kilowatts, direct current, fitted and owned by Terraform |