openspaceman

I've done some servicing on an old kerosene aga, it's not in use now because modern 28sec kerosene isn't clean enough and seems to foul the wicks too quickly. Anyway given that the air requirements are similar for any heat output whether wood or oil (apart from wood generally needing more excess air) it strikes me the burner section lends itself to being replaced by a burn pot as use in 10-25kW pellet burners. Have a look at something a chap I knew (he's gone very quiet on the stoves scene but Nat is a lecturer in industrial design in Italy) designed, http://worldstove.com/wp-content/gallery/events/img_0927.jpg A bit of ingenuity with a fire break, a horizontal auger and a small hole in the side and a centrifugal fan... To avoid spoiling the aga consider using a wedge on the door like Alex English does to run his gasifier into a conventional stove. It would be necessary to have very dry, screened woodchip just from massflow considerations. I'm told agas use about 40 litres of kerosene/week (average 2.5kW??)so as long as you can burn 60kg of dry wood through a week that should give similar performance, a lot more if it's heating radiators.

Marcus may well be right but we laid our workshop floor over an existing one so added mesh as we weren't sure of the base, that plus the trolley jacks have a high point loading. 4 quid/m2 extra cost didn't seem a lot to pay.

Drag the timescale out to 5 years and that's about what happened after 87. I was selling to 13 of many sawmills in surrey then , none left now apart from mobile ones and a subsidised effort. Timber was more valuable at the beginning then too, in real terms it's a fraction of the value now. I'm staying in bed this time.

If it's a lead acid batterry one needs to be wary of the depth of discharge, generally the deeper the discharge cycle the lower the life, e.g if you use 80% of its capacity it will have half the life compared with only discharging to 50% capacity. "Leisure" batteries are designed differently from auto batteries which have high drains (starting) for short periods and are then constantly charged whilst the engine is running. On the OPs figures 3hrs use would only use 50% of the capacity. We use LED flo0ds for night use and these run for 8 hours but I have yet to see how long the batterry will last, I think it/s lithium ion, like in a laptop or cellphone.

I agree and look to puting expansion material against the walls. I imagine there's no damp course in the building?

Looks like it to me

Are they available to work south of London?

I don't think it is wise to mount on a building. Also consider power is proportional to the windspeed cubed so theoutput is peaky. Even on a good site you only reckon on an average of 30% of installed capacity and most sites in England have not achieved this. Perceived wisdom is that you don't get an economic return if average wind speed is less than 7 metres/sec. None of which would stop me if I had space except I would use a pole.

You should be able to derive something in stands where there has been constant competition and they are younger than rotation length, i.e. the trees are still putting on more increment than the mean annual increment to date. This is because there is a correlation between top height and yield class. This may be checked by counting rings and using the blue book (39 still published). The management tables were better for this but that book (34) is no longer published. Mine was never returned to me when a mate borrowed it to get a qualification to score a few more qualifying points for emigration to NZ.

Memory plays tricks, I may be confusing it with the Leylands, it was a two make dealership, one of them had a flip down central pedal for on road use. There was some sort of valve in the system that deactivated the opposing brake when just one pedal was pressed to skid steer. if your foot slipped and touched the other brake both systems failed, I'd be interested to know if it was just a fault.

A 10kW on demand electric heater, as used in showers, can deliver 50C heat at a reasonable rate for DHW. with a delta T of 40 every 10 litres of hot water should use around 1.7 kWh, this is an acceptable but not invigorating shower. ( My heart sinks when I arrive at a B&B and see one of those instant showers that feel like standing under an incontinent rat ) If you do use electricity for space heating and depending on how low the outside temperature gets then a split air conditioning unit can be worthwhile. If the inside target temperature is about 20 and outside is 5-10 the COP is around 3. I'd avoid using your current wet system radiators as they will not get enough power out of the lower flow temperatures.

The 74 series used wet liners. I didn't see any engine strip downs my only repair was removing the file that had been left in the rear tyre casing after I'd driven the machine on its first delivery to a local farmer. I do remember being confused by the brakes if you didn't use the middle pedal and hit the L and R almost simultaneously both pedals went to the floor? I confess I haven't been in one since 76.

I worked for an IH dealership when the 475, 574 674 came out and we were told it was an issue with the new wet disc brakes that required the special oil. At the same time Fords required an anti squeal additive for their back axles too.

Nothing similar but which fan coil units are you considering? I wanted a 100kW one running off 80C and a return of 40C but it came to over 1200 quid.

Very wise and a requirement under building regs for a new installation. After all these years my battery powered one is time expired so I could do with a recommendation for a modern one. Anyway it must be better to avoid the risk of CO buildup rather than wait for an alarm.

Apart from chimney fires this is the real danger of soot and tar restricting the flue. You will notice if the room fills up with smoke because the acrid smell may wake you up but if you have just the char embers burning in the reduced oxygen of the firebox then it's carbon monoxide that seeps into the room, odourless. I have a picture somewhere of a gas termination cowl almost completely blocked by soot where a pellet boiler had been fitted. For this reason alone it's good practice to sweep the chimney, although I tend to do mine every 2 years as I need to take the Jotul out of its alcove. I'd brefer to do as Fred Dibnah and sweep from the top... What one needs to consider is that wood burns as offgas, from pyrolysis products, and char. The offgas can only burn as a flame (by definition) and it's over 50% of the calorific value of the wood, so a smouldering fire is wasting half the energy in the wood as well as depositing PICs, CO, methane and other polutants into the atmosphere. It's burning char that powers the process.

The Goodyear gasification one near Birmingham failed. One of the problems was dealing with the solidified black goo when the process stopped unexpectedly. It's licence was very limited and possibly only used for Goodyear tyres. Cement manufacturers are allowed to burn tyre derived fuels (tyres have a higher calorific value than coal pound for pound) but even they are limited to what % they may use.

Because of the difficulty in relighting it was a punishment to put someone's fire out. Again in order to keep some embers for the morning the night watchman would call out to couvre feu (curfew) to remind people to gather embers up and cover with an upturned pot. I'm also of the burn fast and hot persuasion as leaving a smouldering log is inefficient and polluting.

It isn't biting yet in Sussex, they pay cash up to £100, if it's more weight they do two transactions just to avoid their paperwork. I've used two local places and they were both the same. It's a problem in that I would prefer a BACS transaction and to issue a proper VAT receipt as I have to account for the scrap.

Poplars were planted as setts, short lengths with a bud put in a dibbed hole and backfilled with sand.

Why did Greenmech stop producing the larger jack leg model? Also whilst the quadchip takes square blades why not the 1928?

What's to look out for on one? They still have manual gear change over the torque converter don't they. I'm seriously looking at one festering in a wood but don't know what it will take to get it accepted by clients, lack of provable conformity made my 1164 unacceptable to all but small landowners.

Played with one for a day in 2000, my mate had it leased from FC and I wanted to see what common knowledge controls were all about, being used to 6 levers on the Counties. I cannot remember much about it except the lack of "seat of your pants" feel and that we went where no county would dare to go. It was a clear fell for some opencast mining and apparently not unusual to fall down an old shaft.

I wonder how it could be excluded if all the heat involved ended up being consumed in a bona fide consumer's premises. Just consider how we use heat, we burn dry logs at temperatures of 1100C and use it to heat a space at 25C. There's lots of scope for doing something in between these temperatures. When we built out frst dryer we looked to green house heating to take the waste heat but found no takers. I don't even know if the tomato growing enterprise which used the waste heat from a whiskey distillery is still in operation. I still think a farmhouse with a large heat load could be heated by a drying business but in our case we needed to dump some 6MWh of heat for each 18 tonne batch dried from 60% to 25%

My mate fitted a german shredder at an IKEA store, it took whole pallets, had tungsten carbide teeth and a magnetic separator on the outfeed. It wasn't big and it cost all of your budget. I should still have the service manual for it on cd.