Billyboil Thermal Cooker 3L

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74 reviews

Sale price$119.00 Regular price$149.95
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Vacuum Insulated, Compact Thermal Cooking

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 compact thermal cooker has an internal capacity of about 3 litres. It suits cooking for small groups of up to three people. You can also use it for cooking side dishes like rice, potatoes, or pasta for a larger group.

Need a bigger capacity? See our 50% larger 4.5L thermal cooker.

It's Like a Thermos Pot for Cooking

The Billyboil has a double-wall, vacuum-insulated outer pot. This means it is exceptionally good at retaining heat. It retains heat at least 50% better than our previous model Billyboil (sold between 2015 and 2020).

Here's how easy the Billyboil 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 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 regular cooking methods.

      Specifications - Billyboil Thermal Cooking Pot 3L

      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 3 litres (inner pot). See our larger 4.5L thermal cooker.
      Compatibility Works with electric, gas, induction, and camp stoves.
      Dimensions Outer pot = 20cm high by 25cm wide
      Inner pot = 12.5cm high by 20cm wide
      Weight 2.7kg
      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 3L Thermal Cooker, 9398348333395 (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 about thermal cooker recipes.

      Is it compatible with all stovetops?

      Yes. It even has a thick base which is appropriate for use with electric induction stovetops. It is of course also suitable for regular electric and gas stoves as well. You can also use it camping with butane, alcohol, and other stoves.

      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 74 reviews
      Noela D
      Exceeds my expectations

      So happy with my Billyboil. Took it camping and first night I ate a fantastic Beef Stroganoff. Was hot, tasty, and the beef was tender. The next meal was a Chicken Curry. Absolutely delicious. Best Winter camping cooker ever. Love it. I'm going to try corned beef next.

      Rhonda Bluff
      Billyboil Thermal Cooker 3L

      Absolutely fantastic. If you are thinking of purchasing one, just do it.

      Darren N.
      Billyboil 3l is amazing

      Absolutely amazing. Throw all desired ingredients in just covered with liquid of choice (keep liquid as minimal as possible as it does not evaporate and vegetables cook down). Boil for approximately 5mins so everything is warmed through (you don't want vegetables to be cold in the middle as it works by holding heat) and then place pot inside thermo pot. Not sure how long it actually takes to cook but I usually open it up 4 to 6 hours later for a steaming hot meal (burn your mouth hot). Can even close the lid again and have hot 2nds 3hrs later. Using it campervaning so cook during the day and dinner is waiting ready to serve. Great for when it gets dark early in winter. Billyboil is truly awesome

      Tracey Bons
      Billyboil Thermal Cooker 3L

      Amazing cooker, cuts cooking time dramatically. Meals full of flavour, meat falls off the bone. Strongly recommend. Excellent value for money.


      I LOVE this product. I was skeptical that this could actually do what it claims to do but it does!! cooking made so easy and tastes amazing! From service through to the product AAA
      I can say I am a very happy customer!

      Great thermal cooker

      The billyboil 3L is the perfect size for two people. We have made our favourite chicken soup a few times now. Turned out perfect each time. Bring it to the boil on the cooktop, simmer for 15 minutes, check with thermometer it has reached 100 C, then put it in the outer container. So easy to do in the morning and by dinner time we have our soup ready to eat. Should have bought one years ago. Thank you Reduction Revolution. Marjorie


      Love this energy saving pot, can’t believe how well it works. Can’t wait to experiment with recipes using it. Postage was fast and it came well packaged

      Janette Connell

      I love my Billyboil, its easy to use. Thick steel base ensures even temperature and stops burning and sticking of food. I can leave it to cook slowly to release full flavour and gentle cooking without the worry of checking the stove top constantly.

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