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openspaceman

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Everything posted by openspaceman

  1. I wonder if @lurkalot has come across one of these?
  2. May be https://www.rhs.org.uk/disease/brown-rot I have it on my old apple and it has ruined the tree over several years
  3. Same era certificate as mine and I refreshed it by doing the windblown then chainsaw from MEWP and it all got updated on the system, my last refresher was 8 years ago now so not acceptable to some firms without a further refresh.
  4. If the scrap price is still dictated by China's demand it may take a while, with deflation there cutting output and their domestic demand down.
  5. @adw is far more knowledgable than I but my take is the safe upper limit is 12000rpm and the rev limiter will prevent it going more but the best performance is at 9000rpm. As the rev limiter will cut in you will have to richen it so 4 stroking occurs below 12000rpm because if it is weak the rev limiter will prevent the revs going higher. Personally I find it difficult to tune these rev limited engines on things like hedge cutters, pole saws etc., so a few hints from the experts wouldn't be amiss.
  6. ...and they really dislike wire rope, apparently it wraps round the shredder and clogs it up
  7. The husky brochure says max power at 9k rpm, the thing is does it have a rev limiting coil? One for @adw perhaps We normally tune 2t motors to rev limit by 4 stroking at the maximum high speed, say about 13k rpm for a 50cc engine but it develops it full power at 8-9k rpm. If rev limited it cannot be tuned this way.
  8. Well given time I guess most bits of the earth get subducted to the core where metals will get recycled and we already know a few ways to get to mass human extinction even before Gaia takes a hand, mind it does look like she has already started. I like this one as it seems to simply cause the soot particles to agglomerate and stick to the chimney rather than needing frequent cleaning. It is the same, acceptable wattage as the last one I looked at but that cost £1800 plus fitting. It does still require access to the chimney top which will make annual sweeping a problem. Any idea of the cost? I looked at making one from an old microwave but it got a bit beyond me.
  9. Of course it is sustainable as long as the wood you burn is replenished by other trees growing. I burn arb waste that comes from leafy mansion gardens, there is no shortage of trees growing in large gardens. It makes no difference whether the wood is burned well or badly, producing smoke at sooty particles, they all end up being dealt with by the same mechanisms that have absorbed smoke from wild fires for millennia. Yes a poorly managed fire will produce more particulates than a good one but that has nothing to do with sustainability.
  10. It remains sustainable even if those things are not right. The issue about domestic wood burning is one of people's heath. With particulates being identified as a problem to lungs, and 70% of them in the implicated PM2.5 class coming from some form of combustion, those from woodburning were bound to come to the fore as coal burning dwindled, stubble burning was banned, garden bonfires deprecated and engines fitted with DPFs, addblue and catalysts.
  11. The mills I was supplying 30 years ago would be mostly cutting fencing and things like pallet boards, most building material was imported. The best bits would make posts and arris rails with slats coming from side boards. Smaller diameter bars would also produce slats and these would go down to 6" under bark. The rest down to 2" or 3" would go for pulp or chip but these would seldom cover their cost of harvesting. By £10/m3 on out turn I meant I would pay for the sawlogs that left the site but would take the smaller wood for free, not pay up front on a standing measure. There is a catch here for the unwary land owner and I have had to clear up the mess where a contractor had agreed a high price for the thinning on out turn but only ripped out the sawlogs leaving a tangle of un debranched lengths of 8" tops as a tangled mess .
  12. As does the OP's nickname suggest the eastern end of the Med.
  13. That's right but I would value standing living larch down to 8" top diameter under bark for sawlogs. Nowadays, motor manual felling I cannot see the costs approaching that low on a small site before you allow for winch extraction. I would be looking at £10/m3 on out turn max. for the live stuff, nought for dead even if I decided to take it.
  14. Yes I missed that but legal eagle eyes noticed the car plates and what side of road they parked on I suppose.
  15. Heck and I thought I wasn't squeamish, best wishes for a good recovery
  16. I am very wary of any mesh on a cowl because it may become clogged with soot. I do have experience of a pellet burner, which does not produce much soot, eventually blocking a gas cowl and causing smoke in the boiler room.
  17. Too many reasons but the basic one is the culture of investment here, we have a high wage economy and a desirable living environment that has attracted a lot of inward investment in property. The capital gains have been so high that it has provided better returns than investment in production. This has gone on so long that manufacturing has failed to attract investment for decades and now will never catch up. Simply put our wages mean manufacturers cannot compete with imports, thus there are better places for the wealthy to invest their money. Those of us who work in rich peoples gardens realise we are servicing their wants because it pays us better than being involved in production or manufacturing. PS I have never worked in a factory and never wanted to.
  18. I haven't driven the Kona much, it bleeps at you if you change lanes without indicating but I didn't feel it affecting the steering.
  19. I think collision avoidance and applying brakes may be good but something that can alter the steering is worrying. I would readily replace the diesel and transmission in my fiesta as it has no gimmicks but until a simple EV comes out... I was asked to move my daughter's EV, no way could I get it to go, I had to go back in and ask how to do t, I hadn't fastened the seat belt.
  20. Fixed that for you. So true
  21. Where the wood is the yield class is likely to be 8m3/annum and up. Five acres is 2 ha so the increment is 16m3 and thinning is going to take 70% of that every 5 to 10 years, so even if you don't sell it you would be thinning 10m3 per quarter and thus in felling licence amounts.

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