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Mick O'Brien, OffGrid Masterplan author

By Mick O'Brien · carpenter & builder · sheds-to-homes, cabins and things that stay up in a storm

“I once lost a $400 clay oven to a Queensland cyclone because I forgot to anchor the base deep into the red dirt.”

OffGrid Masterplan

— Mick. It'll still be standing in fifty years.

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Tandoor Construction: Off-Grid Cooking for Aussies

Forget fancy solar ovens. A tandoor is the only way to cook like a proper Aussie when you're off-grid. It's cheap, brutal, and actually works. Here's how to build one without wasting your time or cash.

Forget fancy solar ovens. A tandoor is the only way to cook like a proper Aussie when you're off-grid. It's cheap, brutal, and actually works. Here's how to build one without wasting your time or cash.

Tandoor Cross-SectionClay LinerInner WallInsulationJacketAsh Pit + GrateMouth OpeningBuild Order1. Base slab2. Clay liner3. Insulation4. Render shell5. Cure 7 daysNarrow neck, insulated body, ash pit below grate
Tandoor oven cross-section with clay liner, insulation jacket, mouth opening and ash pit, plus build order list.

The Clay Pot: Don't Be a Dummy

Get a proper clay pot. Not that $15 plastic thing from Bunnings. You need a thick, unglazed terracotta pot. Size: 30-40cm diameter, 30cm deep. Why? Thin clay cracks in the heat. Thick clay lasts years.

Where to get it: Bunnings has the "Terracotta Plant Pot" (30cm, $12.95). Or grab a used one from a garden centre for $5. Avoid anything with glaze – it'll explode.

Pro tip: Soak the pot in water for 24 hours before firing. Stops it cracking. Do this, or you'll be buying another pot. Waste of money.

Insulation: Don't Skimp, Or You're Done

Insulation is non-negotiable. No insulation = no heat retention. You'll be cooking on a cold pot for hours. Use:

Build a 15cm thick wall around the pot. Leave a 5cm gap between the pot and bricks for airflow. If it's too tight, the pot will crack. If it's too loose, it won't hold heat. Get it right first time.

Fuel: What Burns, What Doesn't

Don't use wood. It smokes, it's slow, and it's a fire hazard. Use:

Fire up the pellets for 15 minutes, then add your food. You'll cook bread in 10 minutes. That's the point.

Practical Tip #1: Build your tandoor near a windbreak. A fence or big tree. Wind kills heat. No wind = faster cooking.

Practical Tip #2: Use a metal rack (from your old BBQ, $5 at second-hand shops) to hold food. No more burnt bread on the floor.

Practical Tip #3: Test it before you need it. Fire it up on a weekend. See if it holds heat. If it doesn't, fix it now. Not when you're starving.

Australian Suppliers (No Bull)

Clay Pot: Bunnings (30cm terracotta pot, $12.95). Get it in-store – online stock's unreliable.

Insulation:

Fuel: Pellets Australia (10kg, $15). Order online – they deliver anywhere in Australia.

Total cost: $40-$50. That's less than one fancy gas stove.

Build it right. Don't waste time. Cook like a real Aussie. If it doesn't work, you're doing it wrong. Now go make some bread.

⚠️ SAFETY WARNING: Working with electrical systems, structural modifications, or gas installations carries inherent risks. If you are not confident in your abilities, always engage a licensed professional.

Worth a watch: "From Foundation to Feast: Building a Shelter and Cooking in tandoor · Off Grid Cooking Shack

He lays out a proper footing then fires up the tandoor in the same setup, showing exactly how the structure works when you're miles from town, and it’s the clearest walkthrough I’ve seen of integrating a tandoor into a basic off‑grid shelter without overcomplicating things. — Mick O'Brien

When to Call a Professional

While many off-grid projects are achievable as DIY, certain situations require licensed professionals:

Always check local regulations and obtain necessary permits before commencing work.