openspaceman

I don't know about these but I do know that you need a 2m3 or bigger bucket, 54 trips with a standard JCB bucket just takes too long and uses too much machine time.

Yes in most cases it is and in these cases it doesn't compete with the common alternatives, like coal for instance. So in a competitive market and as labour is the major part of the cost of production one needs to create brand loyalty. This is a form of monopoly to enable you to sell an apparently similar good at a higher price. I see things sold as "EDGE" at the moment, I haven't looked up what it means but if it appeals it becomes part of the Unique Selling Point that gives a competitive edge to your product in exactly the same way "kiln dried" is being used. Now I'm easy either way with "kiln Dried" or "hand crafted" logs and when I sold logs( over 35 years ago) they were only partially air dried because I did not have storage facilities, so my customers expected to store logs in a dry place before using them. That model would appear not to work now. When a client had a business model that pointed to needing a quick turn around from raw material to sale because because they could not sustain the cashflow of stockpiling kindling, which only had a demand from October to January, then kiln drying was a good option and energy considerations did not come into it any more than flying blueberries from Peru for Waitrose (very tasty with ice cream) to sell. That's economics. If you feel that on principle it's wrong to do something that's fine by me but, like me, you will have to forego the riches a competitor that ruthlessly exploits the market can make.

Well if you do look at DIY it's worth considering that the Dyson Kevin mentioned is really a bypass filter, so the filtering section works at high pressure to create a stream of filtered air which then induces the main flow by the Coanda effect. This means only a small part of the air is filtered in any one pass but also the pressure across the filter can be higher, which is why I said a centrifugal fan may be better. I'd experiment with a couple of PC fans and power supplies first, the axial fans can be stacked in series and are quiet enough. If set high above the stove they could then assist in de stratifying the hot air and delivering it at floor level.

I like it but a bit expensive, how often do you need to change the filters? Ian you could cut up an (new packaged) NBC suit to provide the activated carbon filter

Not something I've ever considered but it is annoying how everything gets covered in dust no matter how hard you try to keep it in the stove. How about a bit of DIY, a small extractor fan (screwfix 7414H) in a box lined with washable foam maybe with a slight vortex, as vortices consume power, and finally vented via HEPA filters from something like a Dyson vacuum cleaner? It may be necessary to use a centrifugal fan if the back pressure is too high for an axial one.

Whoosh, look what just flew over your head

I meant the mk7 went to common rail with the 2.4 tdci engine and the 2.2 in the vans I think. The TDCI engine seemed to be cheaper to repair than the earlier 2.4 duratorq direct injection, in fact a brand new engine less pump and ancillaries was only £2000 which I considered a bargain.

Mine's still turning, not sure it makes much difference to room heat though. 3 year guarantee if you kept the receipt. Otherwise the TEG is held in by 2 screws and replaceable if it has got too hot.

Looks like it could double up as a breaker bar for felling. I'd have bought one of these if I'd known about them as I used to have dozens of pallets to dispose of each year. I ripped them down with a chainsaw between the blocks and burned them in the Talbott.

That'll be the maternity unit then

It may lose its anti foaming additives over time but I also wonder if it had got some water in it?

I always assumed it was to mimic the previous method of making pales by radially cleaving a log. You still occasionally come across old cleft oak paling and round here it would have been made by Astolats, they had several blokes cleaving oak to make paling and shingles before the first world war according to Ron Mould who seemed to own the company when I knew him, he had started working for his grandfather. It just goes to show that the quality of oak thinnings in those days was far higher than you see growing in the woods today.

That was later Originally it was dried using gasoil, which only cost about 10p/litre then. Although RHI wasn't available there were a lot of other grants that paid for the kit. The commercial reality was that the poplar boards were just about worthless and drying them quickly, splitting and packaging as kindling added value to a couple of thousand pounds a day. Once the concept was proven it opened the way to expanding intoi logs in bigger kilns powered by wood (and electricity for the fans) using thermal oil as the heat transfer medium.

Except the DPF traps the bits of soot and other partially burned hydrocarbons in the 2.5 to 10 micron sizes which if inhaled embed in the lungs as well as coat everything else with a fine layer. The partially burned compounds include known carcinogens. When it regenerates it aims to reburn the sooty particles to carbon dioxide and water

Yes this was pointed out earlier in the thread but not much use to someone with the problem on a vehicle now without a completely new program for the ecu. Yes I see there are chemicals which can be put in via the pressure sensor but the nature of the thing makes me think it really needs to be a reverse flow, I'd not like the problem but would like to try it if I did.

Mk 7 are 2006 to 2014 I think, all the diesels went to common rail injection.

That's a shame, we tipped up at at Dogmersfield yesterday but my CSCS card expired end September without once needing it. Have to get back below Ash before 7th as the water is being let out.

Thinking over this thread, and not having a car with a DPF, may I give my summary of what seems to happen, feel free to correct what I have wrong. The problem only seems to affect some Dmaxs, Isuzu put it down to the wrong sort of journey. The DPF is a series of very small blind holes in a ceramic filter medium, the gases pass into the these tubes then through the walls, carbon and ash particles being trapped in the walls of the tubes. There is a pressure sensor in the DPF housing that senses when the tubes are getting blocked at which point it enters a regeneration cycle. Is there any indication this regeneration cycle is occurring? If the DPF is too cold the ECU squirts an amount of fuel into the engine just before the exhaust valve opens, presumably this carries on to the DPF as a flame and heats the ceramic matrix to burn off carbon in the excess air diesel exhaust inevitably have. The ash stays in the DPF and eventually kills it. This is why a low ash oil must be used in engines equipped with DPF. As the DPF regenerating injection happens so late in the cycle certain components of the fuel, thought to be derived from the BIOdiesel content, coalesce on the cylinder wall and eventually run into the sump, increasing the oil level and diluting the lubrication oil. From my experience with diesels without DPF one of the chief reasons for excess soot is a leaky EGR valve. My other experience with a Pug 206 1.4TDCI engine which does have a sort of filter is that it is easily accessible and can be unblocked with a blow torch. I suspect much the same could be done with a modern DPF but the air flow must be reversed because of the blind holes, anyone have experience? I would choose to use an electric hot air gun. So apart from breaking up the filter and fooling the pressure sensor the solution appears to be to keep the DPF free flowing enough so that it never goes into an active DPF cleaning routine.

Most plant matter has the same energy content at the same moisture content so it's just a matter of the economics of harvesting and processing. Having just watched the episode on iplayer I was more interested in the clog making. I was surprised he favoured sycamore as perceived wisdom was that clogs were made from alder. I could have done with some when I suffered from plantar fasciitus. His use and articulation of the stock knife was fascinating and so was the variety of knives he used,

They retail at £250 a tonne don't pass it up, they burned ok on my Jotul alongside logs.

Go with the 30 lpm then, there's no guessing about it forcing a higher flow through a valve will cause overheating.

I know

Both constant volume and constant pressure combustion are idealised pressure volume cycles which never exist in practice but are used to demonstrate the principles under which engines operate. I reiterate: my proposition is that as turbocharged diesels are developed with electronically controlled high pressure injectors they move away from the idealised constant air charge per 4 strokes Diesel cycle toward the idealised Otto cycle.

I haven't got figures to hand but anything over 50litres/minute will need bigger bore than 3/8". Also you may operate the loader at fast tickover but unless you switch the pump off whenever you run the engine at higher speed the oil is thrashing around fasted in the feed and return to the valve block. Thinner hose withstands higher pressure, but 1/2" is likely good enough in forestry/ agricultural uses. Main point is too narrow a bore for the flow rates heats up the oil and puts more stress on the pump.

This is typical of one of the american white oaks, probably borealis, grown in too acid an environment. The diamond marks on the bark are from birds repeatedly pecking for insects. You may well find this is an abandoned garden from an old military installation and its progeny may not be far away. Search that tussock grass for drainage ditches marking out the plots where Nissen huts stood and other garden plants.