Small Module
System

The small module is first and foremost a food waste management system for homes.

Instead of throwing kitchen waste away, Vaayu helps you manage it right where it’s generated.

And here’s the bonus:

your food waste gets converted into usable cooking gas.

A typical household can generate around 15–20% of its cooking gas requirement from its own daily kitchen waste.

The system is compact enough to fit in most:

• Balconies

• Utility areas

• Small terraces

• Bungalows and flats alike

Small waste. Small space. Big impact.

The system has three main parts:

• Biogas Digester

A specially designed 200-litre drum where food waste is converted into biogas.

• Gas Balloon

The gas produced inside the digester is stored here through a pipeline.

• Biogas Stove

A separate burner designed specifically for biogas cooking.

There are also a few supporting components like pipes, valves, and fittings that keep the system running smoothly.

Vaayu loves food waste.

You can add:

• Fruit and vegetable peels

• Leftover cooked food

• Stale fruits and vegetables

• Plate waste

• Rice, chapatis, flour waste

• Starchy kitchen waste

Basically, if it came from the kitchen, there’s a good chance Vaayu can digest it.

What Vaayu does not like:

• Dry leaves

• Coconut shells and hair

• Plastic

• Metal

• Packaging material

• Any non-biodegradable material

Nope — Vaayu is specifically a food waste biogas system, not a garden waste composting system.

Dry leaves break down very differently and are better suited for composting.

The Vaayu Small Module can process up to:

2 kg of mixed kitchen waste per day

Less is perfectly fine.

More than that? Not recommended.

A typical family of 4 usually generates about 1–2 kg of food waste daily, which is ideal for the system.

Preferably not.

Biogas is a living biological system.

Think of it like digestion in the human body — overfeeding creates problems.

Adding too much waste can upset the microbial balance and reduce gas production.

The good news:
you don’t need to weigh your waste every day. After a few days, you’ll naturally get a feel for the right quantity.

That’s completely okay.

Vaayu is designed to manage whatever food waste your home produces. Even smaller quantities help the system stay healthy.

But if you want to maximise gas generation…

…you can become the neighbourhood waste hero. 😄

Many users collect extra food waste from:

• Neighbours

• Domestic help

• Nearby eateries

• Local vegetable vendors

The digester comes pre-loaded with a specially developed microbial culture.

These microorganisms (called methanogens) are selected over time from cattle dung cultures and are responsible for converting food waste into cooking gas.

They live inside a slurry medium and begin working once regular feeding starts.

Tiny microbes. Serious work ethic.

As a rough estimate:

1 kg of kitchen waste = up to 20 minutes of cooking time

But remember:

not all waste produces the same amount of gas.

Gas generation depends on:

• The type of food waste

• Calorie content

• Weather conditions

The system is designed for urban homes and fits comfortably in most balconies.

Space required:

• 6 × 4 feet (if the balloon is ground-mounted)

  OR

• 4 × 4 feet (if the balloon is wall-mounted)

Compact enough for city living.

Daily care is simple:

1. Segregation of waste. Keep food waste separate

2. Feed the system regularly

3. Push the waste down properly

4. Clean the feeding mouth after use

5. Use the gas regularly

Small module can give upto 40 mins of cooking time on one burner. So as such it wont make you LPG free other than some exceptional cases. 

For an average family small module is designed to offset roughly:

🔥 10–20% of your household cooking gas usage

Your regular LPG setup continues as usual.

Vaayu adds an additional biogas burner for daily cooking support.

The gas travels through a pipe from the digester to the biogas stove in your kitchen.

The final placement of:

• Digester

• Balloon

• Pipeline

…is planned carefully with you to ensure:

• Safety

• Convenience

• Good aesthetics

We know nobody wants ugly pipes running across their home.

Every 4–6 months, some undigested fibrous material needs to be removed from the digester.

Team Vaayu provides:

• Scheduled paid servicing

• Cleaning support

• Maintenance guidance

Some users even learn to do it themselves — we provide training for that too.

Usually, Team Vaayu contacts you around the 5-month mark to schedule servicing.

On the service day:

• A technician visits your home

• Cleans and services the unit

The removed organic matter can be added directly to soil or garden areas where it gradually turns into nutrient-rich compost.

A little water access and washroom access for the technician is always appreciated.

And yes — servicing during dry weather is usually easier than peak monsoon season.

At present, regular after-sales servicing is available within approximately:

📍 70 km around Pune

Currently, installations are also limited to roughly a 70 km radius around Pune.This is the area where we can provide service support. 

We’re growing steadily and hope to expand to more regions soon.