openspaceman

No I chose it because that was what I had to hand and I only had to do a few hacksaw cuts to re-purpose it. The stove has a double skin which heat rises through and normally gets emitted into the room, this device should pick that up and divert it into the next room as well as be heated by the top surface by conduction. Yes that was a lazy mistake, I should have chain drilled the circles.

I expect it was the sulphur dioxide in the air rather than other pollutants. Farmers found they had to treat for wheat leaf rust in cereals which had not been much of a problem before coal power stations had to remove sulphur which was a cause of acid rain ( reaching Scandinavia).

Most chipstokers can produce biochar, I worked with reciprocating grate KOBs which would dump ashy char through the de ashing system if you cut primary air and allowed the refractory surface of the secondary combustion to pyrolyse the incoming dry chip. It didn't look like a difficult step to recirculate a small amount of offgas using slightly higher pressure air to add some preheat under the grate where primary air would normally be used. Chain grate stokers did this even better as the hot chain starts the pyrolysis before it reaches the secondary area. The bottom of the de-ashing system was kept under water to quench the char and provide an air lock. This was between 2006 and 2008 and these were commercial woodchip burning units heating greenhouses and were not pursued by the owners because the biochar market did not really exist and of course about 30% of the fuel value was forgone as char. When chip prices were very low around 2012 I devised a system that dried and pyrolysed arb chip using 2 augers and a lock hopper but had to abandon the development when I retired and subsequently the equipment was scrapped. Woodchip prices had risen substantially following RHI. Of course at that time there was no market for biochar and the EA were actively preventing its use for fear of run off damaging fish stocks in rivers.

Yes I mostly kept a 18" bar with full chisel chain on a 60cc saw as my goto saw for 35 years, the others only coming out for specific tasks. A smaller lighter saw probably has the same power nowadays. PS what's the difference between a 560 and 562?

If @Bob_z_l wants he can borrow mine as I only use it occasionally for Husqvarna clutches

Also it depends on what you call semi commercial scale. Beau @Woodworks has devised a neat retort system that makes small batches of char from seasoned branch loggings very quickly and efficiently handling the barrels.

nowadays I didn't think most bothered to grease the nose, if it spins and you are worried about it then dip it in chain oil and spin it again.

That sounds like a really good.idea. Got any pictures? This is the manifold, it's made from an aluminium extrusion I have had for years. I tried to anneal it but some of the tabs I tried to bend as locating lugs broke. I only had a 50mm concrete core drill so that hole is a bit messy. It now locates over the convection vent with a tab at the back and one into the front of the slot, slightly sprung to hold it firm. I only have a DC TIG/stick welder so cannot weld it up but I don't think that will matter much. It took me about 4 hours of fiddling, making the mirror image one for the other side should be quicker. 2" flexible exhaust I had used last year carries the hot air through the brickwork and then down to floor level under the stairs to the fan. I'll stee how it goes and then do any modifications before painting it all black with car exhaust paint.

Not before October here and cannot light it as I've just cleaned it out, swept the chimney and put the stove on its back to free up the air control leers which jam up with ash over time. Also spent half a day fabrication the first of two hot air manifolds to direct some heat into the adjacent room after passing through a duct under the stairs and a 150W ventilation fan. I tried it last year and it worked well, albeit the fan is a bit intrusive, so I decide to engineer it a bit better.

Methanol was known as wood alcohol and produced by the pyrolysis of hardwoods. There was a large industry producing many chemicals from beech in Germany before the synthesis of organic chemicals from coal and petroleum took over. It is mostly made from methane (natural gas) now. I thought it had a pH of 7 which is neither acid nor base. Actually burning methanol or methylated spirit (70% ethanol l with methanol added plus a bitter chemical) is dangerous because the flame is nigh on invisible and burns you worse than petrol and I'm not sure why.

Yes they bag it up, when someone sees the dog crapping, and then when out of sight dump it. I walk 3 dogs a few times a week and if they crap on a path or a park I always bag it and carry it home, if out in the woods or common, even though I should I don't bother.

I suspect it would detonate fairly easily as it is a constituent of easy start, that hospital smell of old.

I don't know but JAP 500 speedway bikes would run on Methanol and Castrol R, lord knows where they got it from. The jets had to be 30% bigger to pass enough fuel because although higher octane it was only 70% of the energy content per gallon.

Yes that's beyond re use. People on here have previously said those circlips with tails cause problems. I still use them as I cannot deal with the plain ones.

I was thinking of sweet chestnut rather than concrete 😉

This is why I thought dragon's teeth were good, only 500mm above the ground and a bit more below the car rips its bottom out, absorbing energy as it pushes the tooth over, without impinging on the passenger compartment, I have reason to take this view.

No and as @Rough Hewn says it has been about since at least 2015, though I did not know. Shows it working

Well worth it IMO as dicking about getting a site spotless is time consuming.

I've heard similar tales from an RAF regiment Squadron Leader about recovering CVRT with a Kinetic Energy Recovery Rope but they depend on stored energy giving the extra impulse so problems to be expected if something gives. Also wire rope winching failures at sea but there also the energy is stored in the weight of whatever is trawled up when the wire breaks and lashes around as the load drop. Pulling logs tend not to have these catastrophic failures.

Yes that was the same on my crusader sport hybrid I never saw indicators on bikes before Japanese bikes were common . It's well over 50 years since I scraped through my bike test but I always agreed with Stirling Moss, silly to have to take one's hands off the controls to indicate a change of direction. Mind I've had to add LED tell-tales to the mirrors to remind me I am indicating as the standard ones are too far below my vision and I'm used to self cancelling indicators that I forget to switch them off in my dotage.

Okay, I hadn't seen it before

Yes and it's really the rings you need to see as well to see if the aluminium pick up has jammed them in their grooves

I don't like to see any witch hunts, and that included plogs, when there are a number of ways of ignoring threads or posters one does not like to read.

...but he didn't