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Rendall last won the day on October 29 2018

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About Rendall

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  1. Looking at previous posts, it seems they're for a path!
  2. An update on all of this as we work up the outline spec. Thinking now has shifted away from the whole oil/LPG question for a range/back boiler to a mix as follows: Pellet fuelled stove/boiler (eg for the cooking, hot water and central heating (feeding UFH in the back of the downstairs section - a limecrete/slate flagstone combination), plus radiator/log burner combinations in two front ground floor rooms and radiators in upstairs rooms. These boiler/stoves are eligible for RHI which is a bonus, and pellet deliveries probably more straight forward logistically up the track to the house than bulk LPG or oil. We would have a good supply of firewood (soft) onsite, but speaking to a few folk the verdict is the effort of creating and using your own logs is not worthwhile in comparison to bulk order of bags of pellets, even with the manual tops ups then required into the hopper. The logs we do chop we can instead use in the log burners. Anyone here have other views? Electrical supply still via solar/hydro combination, backup generator and battery pack. Extra renewable electrical supply to also feed hot water. Need to more firmly size the potential v installation cost v cash to fund it equation of the hydro but probably 1kw pelton turbine, and solar would be about a 4 to 5kw set up.
  3. @scottishjohn Just cross posting this in here from our other thread. What do you make of these systems for 'breathable' internal insulation on solid walls:
  4. Here's a rough map of the aspects mentioned yesterday. Plan of service locations.pdf
  5. Yes - lathe and lime plaster on slate walls
  6. That's an option for some internal rooms (as are wood burners), but not for this one in question as that has ornate plaster coving (and it's listed).
  7. I did wonder about LPG for both the rayburn and backup generator. However, I was pointed in the direction of a few horror stories from the shortages last year which has shifted my mind back to oil as potentially more reliable in terms of supply.
  8. I'm drawing up some BTU calculations for our project. Somehow my original finger in the air estimate of 80,000 has come out on my more detailed room by room calculations as....80,000. (I'm bearing in my mind the fact that I can be equally wrong twice!) Anyhow, one front room comes out as 14000 of that (it has a large bay window and a suspended wooden floor above a cellar). We'll get a couple of good sized radiators in there, but there is also a open fire. We'll not put a woodburner in that room (yet to see any that look good with the sort of Victorian fireplace surround it has) but I'm wondering if anyone has a rough BTU for what a standard size open wood fire will generate when it's going?
  9. I'm looking at designing for 20kwH per day. ASHP I'm not sure on - its an older house so feel it will always be relatively leaky and I worry about the effectiveness? The Rayburn was a fixed ask from my wife. It was originally an aga ask but she's happy with a Rayburn, so my thinking is that as we're putting that in anyhow we could go for a Heatranger and thereby use the back boiler for the DHW and CH rather than have/fund another component for those elements. A hydro could have up to a 100m fall, but 20m in on our land/80m on a neighbours. My 'bucket tests' suggested flow of around 15lps even at the height of last summer's dry spell, but a wider initial desktop survey by a hydro firm suggests a mean flow of around 27lps. They calculated potential of a 14kw system so around 45000kwh per annum generation off this but that came with high costs - c£50K - and we'd definitely not need something of that size of generation (and can't export). I want to get a lower cost for a smaller system that is closer to our domestic needs, but ultimately this is all dependent on agreement for the weir and penstock to be installed on the neighbour's land. Having a conversation with them in next couple of weeks, but even then speed of consents or our budget may constrain when we could move on this. If we did do this though a pelton turbine or something like which could give us 500w or 1kw or so would make a big chunk of the need for a good proportion of the year and be balanced/supplemented by the solar and backup generator.
  10. Good question I'd not thought of. It's an existing property though, so presume they'd take the 'already that way' view - and I'd guess tender hoses have longer reach than the 40/45m length the delivery tankers have and they'd be able to get that same point as the tanks and from there its around 55m from the front of the house/70m to the back.
  11. Hi All I need to knit together a few components for our offgrid renovation and am just thinking about the spatial 'certainties' and would appreciate thoughts on the permutations and things to bear in mind with this. The plan is to have a solar/generator/battery combination plus either LPG or oil fired rayburn with backboiler for DHW and CH. The access track along the side of the house will limit oil or LPG deliveries to the rear of the property as it is only 2.4m wide, and the closest point the tanker would get to will be more than the 40 or 45m distance it appears most operators state as the length of the hose (or are there operators out there who deliver with extra long hoses?). Therefore the space that then appears to work best for deliveries plus planning regs to site the tanks for both the LPG or kerosene for the Rayburn, plus the red diesel for the generator, is about 70 meters south from the house (and about 2m lower in height). Are there issues with this distance? We could locate the generator near the location of the tanks too, or else locate this up closer to the house itself - I suspect the latter be easier operationally and is my current thinking. The wider solar aspect of the system has two possible locations in relation to this. Option 1 is about 120m SW of the proposed site of the tanks. Option 2 would be about 50m north of the house (slightly shadier early morning and needs agreement with farmer). Added to all of this there is a future possibility of a pico hydro in addition to help support the renewables side of all of this, funds & permissions permitting, so I want to bear in mind how that might graft onto all of this. The penstock would come down an old smooth incline to a turbine house adjacent to the proposed fuel tank location 70m SW of the house. Suspect a map may be useful (!), but any thoughts or whatouts in the first instance?
  12. Hi All - Just wondering if anyone has feedback from having a renovation mortgage with Buildstore? Some of the online reviews about their support and customer service are pretty poor. Ecology are the other firm I've been looking at - so any perspectives there would be useful too.
  13. Random selection of Escape to the Country, the Incredible Spice Men and I think I might have been hovering around in Michael Wood's Great British Story. Can't understand the dynamic of renovation or build programmes as there seems to be little incentive cash wise for the participants, and to make good TV even with the 'best' project the producers need to drill into some aspect to portray it as being about to go off the rails for there to be any drama in the episode, before they then come back to end it all with the well isn't this lovely bit at the end.
  14. Thanks @Ferdinand. Yes its all a very subjective area, but one of the aspects in all of this I'm more comfortable with (or at least have my eyes open on) as my day job is in conservation too and involves responsibility for a range of Grade1 buildings, SSSIs, SPAs, SACs and the like. It doesn't make it any easier to navigate the vaguaries of what different people's perspectives or interpretations are on aspects of regulations, but I've been around enough conversations of this ilk that I hope if needed I'll be able to navigate through to agree the parameters for some agreed principles and approaches. Another advantage of the day job is that we'll probably already be/or have been working with some of the various officers on other work in the area which will help give us a heads up on their likely viewpoints and stances. Re your earlier note, yes, on skills such at the tree management, walling, I'll be picking these up, and we've got a good generalist to hand. Current plan is a blitz, and designing for a good 25 years plus. Skirt insulation is a good point which I'd not considered. I'll post on the energy aspects separately on here in the topic area as this is a multi-faceted element. Current design is solar/battery combo to give around 5000kwh per annum with a generator back up, and then a gas fired rayburn with backboiler for DHW & CH. There is however potential for a pico hydro but whilst the year round Kw generation on this would be fab, unless I can reduce the capital cost of the install, the initial calcs suggest it's not as good an option (and this would be a whole other area of NRW licences to apply for). I want to model this some more though.
  15. We'll be very sensitive to the ecological aspects on this - it's something close to my heart and I'd want to know we're putting the wider land and landscape into a more sustainable and connected condition than it is now. In my view climate change and ecological breakdown are something future generations will judge ours on.