Billyboil consists of two main parts: an inner pot that is just like a regular saucepan, and another insulated, outer pot. The insulated outer pot acts like a thermos for the inner pot, keeping temperatures hot (or cold) for a very long time.

Whenever a recipe says “simmer for x minutes” or “leave to cook”, just pop the Billyboil’s inner pot inside the insulated outer pot instead, and food will stay hot for up to 8 hours.


Example Method

Step 1: Simply place ingredients into the cooking pot and fill with water.

Step 2: Place the pot onto the stove and bring to the boil. Continue to boil for a few minutes to ensure an even high temperature.

Step 3: Remove the cooking pot from the stove and place into the insulated outer pot.

Step 4: Cover and close the lid. Food will continue to cook in high temperatures for up to 8 hours.

See our thermal cooker recipes for inspiration and more specific instruction on a range of dishes.

step1 step2  step3  step4


  • Insulated ‘outer pot’ with carry handle
  • Stainless steel ‘inner pot’ with handle
  • Inner pot capacity: 3.5 litres
  • Total weight: 1.95 kg
  • Dimensions (outer pot): 20cm high by 24cm wide
  • Dimensions (inner pot): 14cm high by 20cm wide

Save Energy

Billyboil cooks your food using retained heat, for up to 8 hours. There is no energy requirement after the initial heat-up phase. This means you can save up to 80% of your cooking energy usage!

For example, based on a typical use of 20 minutes total cooking time, there would be an initial 5 minute “heat up” phase, followed by a 15 minute “simmer” phase.  With Billyboil, the simmer phase, usually spent on the stovetop, now consumes zero energy.  That’s 15 minutes of energy savings!  Longer cooking times equal more energy savings.

Regardless of what type of cooktop you have – gas, electric, or induction, Billyboil works with all of them, and makes any cooking process more energy efficient.


Care Instructions

Inner pot: Wash with warm soapy water after every use. Avoid using steel wool pads, copper based scrubbers or abrasives that may scratch the stainless steel surface. If you have tough stains, try soaking them for several hours before cleaning. Wipe dry with a clean towel.

Outer pot: Wipe with a damp cloth only, then dry with a clean towel. DO NOT rinse or immerse the outer pot in water.