Hyman Fire Piston

27.72 each

 2 reviews

Demonstrates the rise in temperature when a fixed mass of gas is compressed.

Add to favourites  |  View Favourites


Hyman Fire Piston
Product Code: 0107 In stock
1-9
10-99
100+
£27.72 each
£24.95 each
£22.18 each
The Hyman Fire Piston demonstrates the rise in temperature when a fixed mass of gas is compressed. A portion of tinder supported inside a transparent cylinder is ignited when the contained air is compressed by a hand operated piston



Suitable tinder is provided, though almost any organic material will do if dry enough, i.e. cotton, charcoal, tissue paper.

You can also demonstrate the need for oxygen to support combustion by attempting to re-ignite a piece of tinder. It will only occur if the piston is completely removed from the cylinder and a supply of fresh air introduced.

A cloud can be formed in the cylinder by, having compressed the air inside it, allowing a sudden decompression. The reduction in pressure lowers the temperature and immediately condenses the water vapour inside the cylinder. This can be seen quite easily, but is often mistaken for smoke given the combustion that has already taken place.

Hyman Fire Piston

 ComponentQuantityOrder Code
 Hyman Base and Piston1 
 Hyman V3 cylinder 198mm1 
 Hyman Cotton wool1 
 Hyman Tissue1 
 Instructions for use1 

Customer reviews shown below. Leave a review

Product quality:

Service and delivery:

Hyman Fire Piston

Submitted by: Chris B (13/09/2011)

Brilliant! Solidly constructed. A generous amount of treated tinder. Clear instructions.


Product quality:

Service and delivery:

Hyman Fire Piston

Submitted by: N Roberts (19/05/2011)

Very impressive. Works like a charm. My only problem is that twice I've cracked the plastic cylinder. This is probably caused by pushing the piston down at an angle. Replacement cylinders would be an advantage. Manufacturers note: Thank you for your review. Replacement cylinders are available if required. Please contact us for details. Please note the cylinders should not crack if pushed straight down, please try to avoid pushing at an angle. MANUFACTURER'S UPDATE (February 2015): Following this, in 2014 we also changed the cylinder to a stronger material and have had no reports of the new cylinder cracking :)


Related Products

Latest News view all news