Billyboil Thermal Cooker 4.5L

Save 25%
42 reviews

Sale price$149.00 Regular price$199.95
350 in stock, ready to ship

Order Now For Next Day Dispatch Free Delivery Over $150

Vacuum Insulated, Stainless Steel Thermal Cooker

The Billyboil Thermal Cooker cooks your food using retained heat for up to 12 hours.

It uses no energy after the initial heat-up phase on your existing stovetop. This means you can save up to 80% of your cooking energy usage!

The Billyboil has two main parts, which you can see in the graphic below:

  1. A stainless steel inner pot to use on your stove, and
  2. A vacuum-insulated outer pot with a carry handle.

Billyboil Thermal Cooker Components

The Billyboil insulated thermal cooker components.

This thermal cooker has an internal capacity of about 4.5 litres. It suits cooking for four or more people. You can also use it for cooking in larger batches to make some extra meals for later.

Need something a bit smaller? See our compact 3L thermal cooker.

It's Like a Slow Cooker - Only Better

Slow cookers are great because they:

  • Lessen the chance of food burning or boiling-over,
  • Allow for better infusion of flavours,
  • Can save time with 'one-pot' style cooking.

BUT regular slow cookers still need a continuous supply of energy, just like traditional stovetop cooking. If you enjoy the benefits of a slow cooker but want an energy-efficient yet straightforward cooking solution, then the Billyboil is for you.

Here's how easy it is to use:

Step 1 - Use the stainless steel inner pot as you would normally. Bring your food to the boil, or cook as required.

Step 2 - Once the food is heated through, switch off your stove. Then, place the inner pot inside the insulated outer pot and close the lid. The Billyboil will continue to cook the food using the retained thermal energy in the already heated-up food.

Step 3 - Remove the inner pot when the cooking time has elapsed, or up to 12 hours later, when you're ready to eat.

Billyboil Thermal Cooking Process

The Billyboil is easy to use on any existing stovetop.

Billyboil Thermal Cooker Benefits

The thermal cooker concept was developed for those travelling in caravans, motor-homes or when camping.

However, thermal cooking is an ideal solution for everyday cooking in the home. Here's why:

  • Time-Saving. No boiling-over and no burning of food possible. Let your food keep cooking safely and unattended while you get on with something else.
  • Energy Saving. Zero energy consumption after the initial heat-up phase on your regular stove.
  • High Performance. It keeps food cooking above 60˚C for up to 12 hours. This is 50% longer than other thermal cookers on the market.
  • Versatile. Use it to cook vegetables, curries, stews, or just about anything.
  • Compatible. Suitable to use in conjunction with any stovetop (gas, electric, induction or even camp stoves).
  • Safe. The lid can be locked closed with the handle for safe travelling. This also minimises any spillage if the Billyboil is accidentally knocked over.
  • Removable Lid. The lid can be clipped off to keep your food piping hot at the table whilst serving. With the cover off, you can even use the Billyboil as an insulated ice bucket for super-chilled drinks.

Billyboil Thermo Pot Cooking Method

How the Billyboil thermal cooker saves energy compared to other cooking methods.

Specifications - Billyboil Thermal Cooker 4.5L

Power Consumption Nil
Components Double-wall vacuum Insulated 'outer pot' with carry handle, stainless steel 'inner pot' with handle and removable silicone handle cover.
Capacity 4.5 litres (inner pot). See our smaller thermal pot.
Compatibility Works with electric, gas, induction, and camp stoves.
Dimensions Outer pot = 25cm high by 25cm wide
Inner pot = 17.5cm high by 20cm wide
Weight 3.1kg
Carton Quantity 4 - this listing is for 1 unit
Materials Stainless steel type 304 inner and outer pot. Outer pot has a plastic (polypropylene) handle and framing.
Product Identifiers Billy Boil 4.5L Thermal Cooker, 9398348333487 (Barcode)
Further Documentation Instructions (PDF)
Warranty 2 Years

Frequently Asked Questions

What recipes do you suggest?

Any recipe designed for extended simmering, slow cooking, or one-pot cooking is ideal for the Billyboil. In other words, you probably already have a stack of suitable recipes.

Here's a blog post we wrote on how to turn any recipe into a thermal cooker recipe.

Is it compatible with electric induction stovetops?

Yes. It has a thick base which is appropriate for induction stovetops. It is of course also suitable for regular electric and gas stoves as well. It even works on camp stoves, alcohol stoves, etc.

How should I clean the Billyboil?

You can clean the Billyboil like any stainless steel cookware. Use warm soapy water to clean the inner pot. For the outer pot, a quick wipe-down with a damp cloth is usually sufficient. Avoid using steel wool or abrasives as they may scratch the stainless steel. For any stubborn marks, use a stainless steel cleaner or cleaning paste, like Gumption.

Customer Reviews

Based on 42 reviews
Debra Gardiner

Billyboil Thermal Cooker 4.5L

Awesome Thermal Cooker

Someone told us about it so we thought we would buy one. It was the best money we spent. We have cooked perfect rice in it, a soup and stew. Cannot wait to try more recipes.

Libby Lambert
Billyboil Thermal Cooker 4.5L

Well made sturdy item that would be fine for stove top use and for transporting hot food to meetings when dinner is at the end of the meeting. Promptly arrived in perfect condition.

Agnes Szajer
4.5L Billyboil

The whole process of buying it was seamless. I have been using it all the time on our trip around Australia. Mainly casseroles and soups. We love it, I can highly recommend it for its quality too.

Sau Fung Lee

Billyboil Thermal Cooker 4.5L


Very happy the product was delivered in time and have used it to make soup, a curry and corned beef. All turned out perfectly. The curry needed a small reheat as it was left for 8 hrs.

Lynn Soucelier

Very easy to use

Colleen Foley
Love the billy boil

Love the billy boil

You May Also Like:

Recently Viewed: