The latest Fireweaver adventure in thermoelectrics, started as a request for a simple design for use in Developing Countries. Having spent a great deal of time overseas, I understood the need immediately, set to work designing and am very pleased with the result. It's been used in my workshop for weeks and has been faultless, providing brilliant lighting for the workbench and putting the existing neon lighting to shame. The stove has been up to 420 degrees burning compressed wood dust and I've boiled the cooling water but it still comes back for more, yet will still power the lights when the stove is turned down low.
How it Works:
There are no moving parts in the Tinderkettle at all. It's simply filled with water and stood on the stove. Within a minute or so the lights come on. Eventually the water will get too hot to provide effective cooling and the lights will start dimming. This takes from 40 to 60 minutes. Pour off the water and use it for washing up or filling hot water bottles, fill up with cold and the lights go bright again. Incidentally, the lights won't go out completely while you are changing the water, so you can still see what you're doing.
The electricity is low voltage, between 3-3.5 volts. The four lights seen in the picture below ~and indeed lighting the pictures~are connected in parallel. Each light is a high output LED. The Tinderkettle will probably power a few more lights, but I haven't tested it yet.
The Tinderkettle will be supplied complete with Lights, mounted on a pre-drilled Aluminium Channel ready for wall or ceiling mounting and costs £115. The lights will be connected with snap connectors, and the Tinderkettle will be supplied with a handle for ease of handling. I haven't got accurate postage costs yet but I imagine it will be less than £15 within mainland Britain. Keep coming back as I will update the site when I have accurate costings.
If you would like the lights configured differently, any other variation, or just have questions please get in touch and I'll be happy to help.