openspaceman

As I read it the government always gets a whole month of tax for every transaction or is there a work around? Say you sell a car tomorrow, you lose till the end of the month, new owner still has to pay from beginning of month till tomorrow.

I actually do not think it is a bad a danger as HETAS make out but they had the ear of government when the regs were updated. Most solid fuel boilers were traditionally coal/coke and the energy density and flame temperatures much higher than wood so the capacity to vaporise more water. Another way of doing this would be to have a separate vented system running through the wood burner and a plate heat exchanger into the pressurised system, with its pump triggered by a thermostat on the boiler side.

Actually some things still can be but not fencing, The modern stuff is just an organic copper salt and as you say doesn't last. Even the old cca stuff was often not treated well so only a thing skin was protected.

No I meant £5/tonne free on lorry. It's ungraded green (probably 0ver 50% moisture) arbwaste with lots of bark, buds, leaves and needles. I know I could get £100/tonne delivered for clean chipped wood to G30 and dried to W30 which values my green tonne at £74 if I could screen, dry and deliver it but how high would my costs be?

Price for chip free on lorry is about £5/tonne to me at present, it used to be £18/tonne less than 2 years ago. Chipping costs between £10 and £16/tonne so getting a small amount for it as firewood makes better sense to me in Surrey

I've loaded rings into the heizohack 14 800 but it will not manage 4ft, 32" max IIRC., it eats them no problem but is it worth it? Where in Devon, I still needs some stuff to split for a stove near Tiverton.

The driver's card for about 35 quid and software to download it. Not been involved with them yet as still paper based with vehicles before 2006.

This relates to tractors that do not have the trailer brake operating off the service brake, most mainstream full sized tractors post 1986 should operate the trailer brakes proportionally when the service brake is pressed. Earlier tractors with separately operated trailer brakes are limited to 14230 kg and the tractor must weigh 25% of the trailer(s) being pulled, this is slightly different from the figure you posted. I'm still not sure if the 4.4kW/tonne (6hp/ton) rules apply, they do not apply to solo tractors but I believe they probably apply to post 1986 trailers which I believe have to be plated. This is in the 1986 construction and use act, not the road traffic act and seems to apply to all goods vehicles that are plated. Once your trailer grosses more than 14230 kg complying becomes complicated as the rules talk about distances between axles so reaching the allowed 24390kg GTW needs some thought and the tractor has to weigh at least 6 tonnes (and probably have 150hp)

I'd be interested to see how you work that out, the trailer cannot gross more than 18.29 tonnes so payload cannot lawfully exceed 15.29, even then it's problematic because not many balanced trailers weighing 3 tonne can carry that and the maximum drawbar load of an unbalanced one cannot exceed 6.4 tonnes. The tractor would have to have to have coupled service brakes and I suspect the 8210 is limited to a gross train weight of 18.25 tonnes by virtue of the road traffic act power requirement, which I do not think AMVs are exempt from. Now whilst no policeman will be expected to realise that it's only after an accident that a barrister will check on all these things.

Yes with a caveat that the feed from the feed and expansion tank should be direct to the input of the boiler and the expansion pipe should be ( in the past but may have changed) a 22mm pipe direct to the FandE tank. This can cause problems with pump over into the tank if there is a lot of resistance in the radiator circuit. I know there have been changes in the regs with regard to solid fueled boilers and pressurised system but I thought they were only allowed domestically on mechanically stoked systems. The reason was that in a vented system if the boiler stove was filled and left running and the water boiled it was made up with cold water from the feed and expansion tank. With a pellet boiler the pressurised system has the capacity to dissipate the heat because there is only a small amount of fuel in the stove but with a log burner if the fire runs away, perhaps because of poor door sealing, then there is enough energy in the wood to cause the temperature to rise beyond boiling point and above set system pressure, the pressure relief then blows. In a small system without a large accumulator the system can still boil dry. Incidentally the pressure relief valves seldom reseat after an over pressure excursion and need rebuilding or replacing IME. A system with a big accumulator can absorb the heat and there is far too much water to boil it dry, also the subsequent low system pressure (after things have cooled down) often prevents a restart until water is topped up.

Anything with a high biological oxygen demand will kill roots, milk is just that. It will have the same effect if dumped in a stream, the bugs that try and digest it remove all the oxygen from the water and this kills the fish.

...and a bit more here

If it's delivering an item for sale then even the 50km rule doesn't count, that is only a concession if you are going to a job with tools for the job. Actually you are only the second person I've heard has been caught in the last 5 years. Paul Barton at Nottingham quoted me a better fitting price but it's a long way south of you.

I don't use that method, I dry a sample in the microwave and then spend a few days watching its weight increase. Ours was for a client and it was freshly milled 2.5" reject boards, even so I think it would have lost weight between milling and kilning. It was over 10 years ago, I am not active in that field now.

I've noticed one missing off our old 150 tow behind. What make of hub are used so that I can buy a replacement locally?

We got 18 wet tonnes into our 40ft container and it came out 24 hours later at 11 tonnes. Burning 10.5 m3 to dry 30m3 is probably fair assessment with a overall COP of 2 as the energy in evaporating water from wood is about 14% of the wood energy availble and you'll need double to allow for wastage. Spend more money on bits and you can do better. You also have to allow extra for the energy needed to circulate air and this becomes a trade off with temperature, the hotter things are the less air circulation required. I think your figure for ash is a little low and sweet chestnut considerably too high. Personally I don't think it's worth going to 20% mc as that is getting too close to the equilibrium moisture content outside in most of England so some of the logs may soak up air from the atmosphere as the moisture in the logs settles averages out. I know nothing about RHI payments but do realise that generally desktop studies and spreadsheets are too optimistic in practice.

I cannot see it worth burning 20% mc fuel in a boiler as large as this, nor would I expect to get to 85% of the wood energy into water but the figures are fairly straightforward, first need to clear up the differece between power and energy, power is the amount of heat the boiler will give out in a unit of time, so we'll say a 175kW(thermal) boiler. Run this flat out for an hour and it will have released 175kWh(t) of heat, some of this heat will be lost up the flue or out of the sides but accepting the 85% into water figure that means the water receives 3.57MWh of heat over the 24 hours running, in practice the boiler has to modulate to an average figure less than this or something tends to blow off. Of the 20% mc (wet weight basis) wood that needs to be burned each kg burned perfectly yields about 4kWh of heat and we need 4200kWh so fractionally over a tonne as Duffryn says. Logs are far to valuable to burn doing this. Next you must consider the conversion of energy in the heated water to drying the logs. This will vary enormously with many factors like insulation, saturation of air and temperature of moisture laden air leaving the kiln. We aimed for a coefficient of performance of 1.11kWh per kg of water removed from wood on a simple system. One could do better but with much increase capital cost. Short cycle times are entirely dependent on temperature as once you pass enough air over the log surface to evapourate moisture it's the time that takes for the water to move out of the log that limits you.

The tinnitus is my worst ailment (known ones anyway) Despite always wearing helmet and muffs I'm told it was probably the spectacles that ruined the seal around my ears. It may seem trivial but I find it most distracting and annoying. Funny thing is it didn't affect my biennial medical hearing test. Recently I've realised I can no longer do pull ups on the kitchen door frame skirting, this may be a result of my sedentary occupation now.

It could be if the heating was a by product of doing other work!

This may be to do with the limiting factor being the speed of migration of water within the log rather than the air's ability to evaporate it from the surface.

Easy enough to do the sums. I always saw it as a cashflow enhancer but if you have access to a barn that can store a years supply and you can forgo the labour costs of converting for a season then it probably isn't worth it.

Bulk Bags | Ton Bags | Builders Bags | Wholesale Manufacturers & Suppliers Manchester

Why should they, if you've swept the chimney properly there is no fuel to cause a chimney fire? The main danger from a chimney fire is cracking the flue and subsequently allowing combustion gases into the living area.

Or dinyntol or por15

I read it as a simple statement rather than anything else. Mark's philosophy certainly harms no one and until he made the post I was unaware he was a vegan despite having met him on a few occasions.