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openspaceman

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Everything posted by openspaceman

  1. Floorboards up, thin battens stapled to bottom of joists, 75mm celotex (seconds) cut and squeezed down to sit on battens, joints taped with aluminium tape, pipes and trays laid: floorboards back down. Make sure airbricks are clear as bottom of joists now sealed from house and must breathe. I've never done it as I laid pipe in screed on top of celotex with a new solid floor.
  2. The word "reckless" is used for schedule one species rather than negligent. The problem is you don't know if a nest is there until you check and if you find one no matter what the species it shows intent if you harm it. I agree there is little chance of being caught and don't know of prosecutions other than poisoning/shooting raptors or stealing eggs. My main take on it is the legislation is a reaction to loss of bird species, it's shutting the door after the horse has bolted because the losses are related to inadvertant effects of our development rather than general domestic activities
  3. A bit less, Isuzu give the chassis cab as 2090kg unladen on the short wheelbase and the last transit tipper I bought 7 years ago was about that with the body on.
  4. I disagree, heat input is the same for a combustion system as for a heat pump, a well insulated house will need less heat from either. Yes oil boilers are dirt cheap in comparison but the price per kWh will favour the heat pump. As I said you have to consider capital cost, running cost and maintenance. I haven't owned a heat pump long enough to know how long it will last and mine is a simple portable which is giving sterling service in the present hot weather. One thing I didn't mention is that as the water in a wet heat pump system is generally below 60C some thought has to be taken about precautions for legionella bacteria. I think the OP said he has suspended floors on the ground floor, which doesn't preclude underfloor heating but means the thermal store of a few inches of screed is not available.
  5. It depends what the "activity" is. You must not intentionally take, damage or destroy a wild bird’s nest while it’s being used or built. Also some birds, e.g. wood pigeon, breed throughout the year, we were stopped on a job with pigeon squabs in a nest last week.
  6. 29C here and the heath 300 metres opposite still burning
  7. I suppose the "lock" passes through both the live and the tail strands of dynema? The lock will weaken the rope but as you have a loop with 2 lengths then reducing to one thickness my guess is the whole bury and lock is stronger than a single line but less than 200%. of a single line.
  8. Would you tell us about the strain gauge weigher thingy? Cost, Accuracy etc.?
  9. Not that I'm in the market for saws but the 40 quid difference in price just gets you 3/8 running gear instead of .325 a bigger filter and .2kg more weight? What proof of servicing does one need to qualify for the 2 year warranty?
  10. I only saw one at shows and read a bit but my mate in Wales swore by his 1) reads like a failsafe brake that is normally held off by the hydraulic coupling 2 ) this seems to be the main drive which was a drum off a lorry axle the drive is engaged by applying the drum brake, the drum and input then all rotate together
  11. It looks like @doobin and I sing from the same book, I'd be looking at heat pump and underfloor heating with a top up by electric immersion for the Domestic Hot Water. A woodburner makes an easy back up in very cold weather, all the time outside temperature is above 10C and inside around 20C you will get a bit more than 3kWh of heat for every 1kWh of electricity put into the heat pump. Even a stand alone air conditioning unit will provide a little heat in winter advantageously and provide cooling in the weather like now. You need to do the sums for yourself for the costs but there are three elements, the amortisation of initial capital cost, the running cost and the maintenance cost. That depends on how big the heat pump is and how much difference in temperature you are looking at, once the delta T gets above 10C then the coefficient of performance struggles to stay above three, I expect the COP on a modern unit is better than what I was dealing with 15 years ago. As I said I don't think radiators are the way to go with heat pumps. I'd worry about relying on LPG
  12. Me too, on a conifer reduction Wed and Thurs and boss became aware of some squabs in the final tree so gave me an excuse to miss Friday,
  13. Lower temperature Also longer time constant so the heat pump is constantly topping up a small temperature difference There is also a psychological benefit as the overall perceive comfort can be achieved at a lower overall temperature if the heat rises and feet feel warmer than head does.
  14. IMO not with standard sized radiators which are really best accepting water at upto 80C and returning it somewhere above 50C to get the gas boiler in full condensing mode. Again IMO heat pumps are great for underfloor heating but need boosting for DHW and possibly in very cold weather. I gave this advice to my brother when converting his house with a heat pump in the garden and internal buffer store with immersion heaters to top up. He ignored me, the circulation pumps had to work hard, buffer store constantly de stratified so immersions cut in frequently,
  15. You stole my next line Anyway Dexter is in the picture
  16. Is he the guy from the chip shop??
  17. Has anyone tried running a ms260 with just one ring fitted? it always seemed sensible to design with two but the equivalent Husky 254 only has one
  18. Yup I've learned how to flip images but how videos?
  19. That's interesting, I didn't use a timberwolf with stress control until around 2000 after they morphed. It made me realise how much more productive it could be to just stick a piece in and walk away knowing it would cope rather than tend the Dosko. The Dosko is still going but the loss of productivity over the years must have made keeping it a poor choice. Later I realised the "letter box" opening was of value when chipping conifer tops which would bunch up in the 6" square opening and then marvelled at the aggressive feed of the Forst 6". So if the parts are available a retrofit should be okay. Some chippers seem to use the alternator W output for speed sensing so no longer any need for the toothed wheel and hall effect sensor. The first generation of stress control was very simple in that the tachometer sensed rotor speed and switched a solenoid spool in the feed to the main spool such that the hydraulic pressure was all dumped to tank. If the blades were very aggressive they could continue to pull material in by over running the feed motor(s), I don't know how this is managed nowadays whether by blade angle design or using an over centre valve on the output of the main spool to feed motor(s). The hysteresis of the speed controlled switch meant that high idle had to be reached by the engine before the hydraulic flow to the feed spool was restored. Logically you would cut the feed when the engine fell to the revs for maximum torque, in practice manufacturers seem to cut out and back in nearer to maximum power.
  20. I was going on the angle of the dogs as well as the back handle and trigger. Looks normal one tooth, tie strap then opposite tooth to me.
  21. A deafening silence from the experts probably means this question is a bit too contentious. I suspect compliance is the major issue as chippers can be dangerous and modifications that are not approved could lead to problems with H&SE if and when something goes wrong. Does the Entec conform to the required hopper and feed chute dimensions and stop controls? Mostly it's probably not worth doing, mind I'm speaking as someone who has spent a few hours each day for the last two tending an ancient chipper with no stress control on some leylandii tops and I'd guess 30% of the time was necessary just to prevent jams and stalls which would not have occurred with a modern 6" chipper but then will these modern chippers still be working everyday after 30 years?
  22. Yes the only drawback is that it occupies quite a bit more space in the log store. I'm beginning to regret having so much softwood in mine this year as I have had to turn away some ash as shed is full.
  23. You're right of course but I just apply a grease gun to the hole and screw the grease in with the plug on Stihls.

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