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Thanks everyone - lots of great comments here over the years! I couldn't see any easy wins here (though I still love the 50W wood-fired steam battery charger that spies used!), so have ended up sticking with solar, and am looking at a 24V 40Amp DC generator to back up the solar charged...

Thanks - happy to take this guidance, towards a four stroke small engine rather than steam. Next step - what off-the-shelf product should I buy to try and make this happen? Is there an Amazon link to buy one, as an example? Something like these? http://www.laserengines.com/engines.htm How do I...

Hi Niels - electric output format in not an issue. AC or DC, whatever, don't mind. Conversions afterwards electrically are easy, and LED lamps + phone chargers come in both AC and 12V or 5V DC formats for supply from cars and laptops. Or from 3.2-3.7V DC direct from batteries for LEDs (phone...

Just found a YouTube of the Tiny Tiger too.....they're out there...! http://www.youtube.com/watch?v=fLsXPfZl9E0

Hi again all, Dieselpilot - kerosene lamps are in every house, so kero/paraffin is pretty widely available. Everyone cooks indoors with wood or charcoal, so this is available. Diesel and gasoline are pretty well available too, for motorbike transport, small boats and farm equipment. I've built...

Thanks for the waste heat engine link. 8kW is about 20 times larger than I'm hoping for. But interesting! Stewart

Thanks, Entropy455 and others. Yes, 2kW for 1 L/hour is spot on what is available in the market today. I'm aiming for 0.1-0.2L / hour. Even at similar capital cost. I don't mind the DIY aspect, Wizard69, because if you guys can make one, I can take it to China for mass production. I lived there...

Hi all, Sorry for this nutty sounding message , but I was looking for some advice, and this seemed a good place for it. I flew model aeroplanes with my Dad as a kid, so am familiar with small fast diesel and glowplug engines, but recent years have found me helping villages get electricity...