SimonD
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Everything posted by SimonD
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Radiator sizing: to oversize or not?
SimonD replied to ectoplasmosis's topic in Air Source Heat Pumps (ASHP)
Context is everything. You need to consider your personal setup and lifestyle within this. Also, regarding radiator sizing, your system designer can tell you whether they considered intermittent use as part of the heat calcs. When considering intermittent use, this can significantly increase the emitter sizes as well as energy consumption depending on calculated re-heat times of the property. There needs to be a careful balance of this, that isn't just about your rad sizes and a single set flow temperature. When running with trvs if they turn off flow to your rads there will be less volume in the system for the heat pump to warm. You'll gradually get to a point where the system cycles due to low volume of system fluid. If you're running a thermosat in the house it requires some good setting of trvs and room stats to ensure the system isn't still calling for heat when all your trvs are closed. People often incorrectly think setting up a whole house heating system to run efficiently is a simple thing, even with weather comp it takes a long time to get it set up correctly. On here you'll find a lot of people who tinker with their systems until they get it right, because they have the interest and make the time to do it. Also on here you'll get a lot of people who have installed just weather comp, but depending on how you live, you may find load compensation or a controller that combines load/weather comp to be better for your needs. -
Radiator sizing: to oversize or not?
SimonD replied to ectoplasmosis's topic in Air Source Heat Pumps (ASHP)
Why? If the heating system is designed, installed and commissioned correctly with appropriate controls there shouldn't be a need to boost individual rooms. -
Plywood for lining internal walls in timber frame
SimonD replied to Hannah82w's topic in Timber Frame
Most plywood you get from merchants is going to be Class II with some of them Class 3 - e.g even B & Q ply is class III. Softwood can be class II or class III as it depends on the glue. I would suggest you go for minimum Class II which is for humid conditions but it doesn't matter if it's class III they stock. My local supplier doesn't even stock class I but has structural 18mm Elliotis Pine Class III at £27 per sheet inc VAT and £20 for the 12mm, with this minor price difference I'd go for 18mm as then you know it's got the screw fixing capacity for almost everything. -
Can you provide that drawing in colour? That would would make more impact. At our committee meeting our architect hand sketched a colour drawing that went down a storm with the committee members.
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Not really, I did say.... 😉 Now it seems your re-draft does that 🙂 and + 1 to @kandgmitchell's comment about the annexe. It obviously depends on your context and local development plan, but when I sat on a development committee in a rural location, planning applications for 'annexes' for rent used to get viewed with suspicion. So be careful how you phrase it and how much you make of it. Even better if you can find a part of your local development plan for rural economic development, for example. There was one here recently where the farmer specifically noted an economic development clause in the development plan to be granted planning for commercial purposes. All local objections were overridden due to the clause.
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Good luck with this, I hope it goes well for you! In terms of suggestions, there are a few things I would bring to the table: 1. Don't immediately go in for an argument or use the term 'easily dismissed' as it can come across as rather antagonistic. You need a compelling argument to get the committee on your side. 2. Build upon your initial paragraph to develop a story about how you've considered in your design the aspects of heritage, natural landscape, sustainability and support from the local community. Do you have any support from the Parish Council which could be mentioned. Also mention any and all your attempts to satisfy the requirements of the planners 3. Then go into how you believe you've satisfied the conditions the planner has based their refusal on. 4. Once you've built that story, if necessary you can then go to dismantling the planner's position using the advice you get from your planning consultant, but particularly if there are any problems with due process - for example, the planner has said you haven't 'sufficiently demonstrated' - have they asked for further information, defined what would be sufficient? And also there state that you have in fact supplied the PEA and updated it. Also highlight that you are willing to compromise on certain elements. 5. Carefully consider the legal duties on process for further appeal and raise any and all of these points if needed In my experience, the committee can completely ignore the planner's refusal if they want to. They can also completely ignore community/parish council in favour of a developer who has put forward a strong argument that they feel will actually benefit the community.....so it's a lottery. HTH.
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An idea for insulation under an old uninsulated block and beam floor
SimonD replied to Carol W's topic in Floor Structures
+1 - have a look at full fill with eps beads. Otherwise I fear there will be a lot of swearing and cursing and a poorly finished insulation layer. I also believe that once it's filled with eps it no longer needs to be ventilated as it ceased to be a ventilated void. -
I have a Topdon TC001. It's between £230 & £280 on Amazon. I used it a lot for work. Very happy with it. Really small but you need to choose either the TC001 with usb c or TC002 for IOS. Some images:
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Would Shelly relays suffice?
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Yikes, the key point for me is that I need to pull my finger out to insulate the flow & returns from boiler to the hot water cylinder and ch manifolds central in the house. As I run hot water priority its a greater delta T!
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Unless there's a bath to go in there? But as you say, swallow the mistake, have a cup of tea, keep calm and carry on and either cut some plywood or sister with a meter or so of 4 x 2 and job done ☺️
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It's because the hot water is circulated around the pipework, usually at programmed times of high usage. It doesn't get pumped when someone opens the tap. Therefore, if it weren't insulated you lose a load of heat from the hot water circulating around the house and then going back into your hot water cylinder and cooling that down too. So you could in theory end uplosing all your hot water. Think of the recirculation pipework being an extension of your hot water cylinder.
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Go and buy a couple of cheap portable Ikea induction hobs like this one https://www.ikea.com/gb/en/p/tillreda-portable-induction-hob-1-zone-white-70493503/ or even the double one https://www.ikea.com/gb/en/p/tillreda-portable-induction-hob-2-zones-white-90497166/ and try them out for a while. Obviously make sure you have suitable pans. Once you've spent some time using them, I'm sure demands will change. I once had no choice either 😉 but we do have a permanent induction hob now. One of the best things is how easy it is to clean compared to gas!
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Understanding insulation options and condensation implications
SimonD replied to Alan Ambrose's topic in Heat Insulation
You could look at Glulam - Buckland Timber, who I can recommend, do glulam in Oak as well as a number of other timber species. This could be advantageous for a number of reasons. https://www.bucklandtimber.co.uk/ -
Understanding insulation options and condensation implications
SimonD replied to Alan Ambrose's topic in Heat Insulation
I'm not so sure. I had a good look round the WISE building at CAT on a visit a good few years ago. Lots of cracks/gaps visible at various intersections at the time. I'd be curious to see how it performs now for airtightness. -
Love the story, but as someone who now works in the trade as a result of my own self-build experience, I would not accept that from a customer and would not go back. For me, trust works both ways and that means a customer that pays for the labour and materials when it's due without holding anything back just in case. Cash flow is just so important for any business let alone a small one and I know from experience that any delay in payment can cost me in terms of charges with my suppliers and credit lines especially when 60% of my invoice is for products and materials. For this reason however, I don't separate labour/materials but charge for the job in one sum. For me, if you're planning on retaining something post completion of work, then that needs to be agreed upfront with the tradesperson so it doesn't come as a surprise to them. If you want to build trust, then by all means ask them to complete some smaller pieces of work on a day rate as part of that process. But with all that being said, I still have no clue about how to actually manage trades I'm paying for as they're all just a law unto themselves and I keep on getting let down too!!!
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Understanding insulation options and condensation implications
SimonD replied to Alan Ambrose's topic in Heat Insulation
Or even better make the wall buildup hygroscopic and vapour permeable. I personally think there is still a lot left to learn regarding building physics and moisture movement in modern building practise, especially regarding hygroscopicity at its role in effective moisture buffering. -
It's very unlikely to be a blocked overflow then, but as you've now got plumber booked, you can leave it to him!
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Have you drained it at all since the leak as the water level is below the overflow?
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I'm with @SteamyTea on this. Try to get a fan. I've got a secure metal garage I bought over 20 years ago to store motorbikes. Even with vent holes you get a lot of condensation internally simply as a consequence of the shed material and rapid temperature/humidity changes during the winter - sometimes I've gone into mine and thought the roof has been leaking only to see a lot of water droplets on the ceiling. There are a number of solar powered exhaust fans out there that you could use to help solve the problem, but it probably won't completely solve the issue of condensation on the metal.
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Soon not. Our electrician had just wired this up on his recommendation. I hadn't even thought of it before he provided his advice.
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Our electrician put in a socket for our dishwasher under the sink.
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Replacement for Honeywell CM907 controller
SimonD replied to Ferdinand's topic in Central Heating (Radiators)
Honeywell's (now Resideo) replacement alternative is the T4 which is available wired or wireless. The T6 is a good piece of kit with smart control through app etc.but its limitation is that it has to be plugged in. -
Our new electrician has recommended Varilight for all our led switches. They do sell toggle switches but ours will all be dimmer. I don't have direct experience yet, obviously.
