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Everything posted by SteamyTea
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ASHP installation - great new invention
SteamyTea replied to JohnMo's topic in Air Source Heat Pumps (ASHP)
Had a quick skim though, seems like a reasonable idea. Not idea how it will affect overall SCoP.- 23 replies
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Is that Scottish-Japanese company still going. Akai
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Let the fun begin!
SteamyTea commented on Benpointer's blog entry in Contemporary build in north Dorset
Good on you. As you have vaulted ceilings, is there going to be above building reg insulation. I understand why you want pocket doors, will make you life easier. They do tend to be noisy, but I would think that there are quieter ones, just a case of putting in rubber wheels, rather than nylon ones. -
Damp fiberglass insulation during build
SteamyTea replied to Robsco1's topic in House Extensions & Conservatories
I would think it would dry out naturally. If there was 100g of water per m2, which is quite a lot, then it will take 226 kJ/kg of energy to vaporise it. That is 0.063 kWh. So not much in the scheme of things really. (As with all things science, it is not as simple as that, but a good enough first approximation) -
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Seems icon, instead of the image, have been uploaded. You can usually copy and paste an image into a post, some formats are not supported though. Pasting in file paths does not work, which is what seems to have happened here.
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TL:DR You ideally needs to split your PV across the phases you use during the daylight hours. Net Metering may be possible with your energy company, but check first, and check if you can get a Net Meter fitted. And, kW is power, kWh is energy.
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Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
Sounds like Sierra Leone when it comes to deforestation. -
Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
How about cross laminated timber (CLS). Typical k-value of 0.13 W.m-1.K-1. -
Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
May be worth looking to see how much PIR sheets cost. Applied externally, and then covered in a weatherproof membrane or coating should help a lot. You may find that the costs are not that high, Europe is a high mark up country after all. -
Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
PV and Air to Air Heat Pumps then. Heating and cooling taken care of. Not been to Chile, only Venezuela and Columbia, I lived just of the coast of Venezuela when I was a teenager. -
Probably made with a fire retardant resin. MDF is really hard to set alight, as are some ply woods. Depends on the binder/adhesive used.
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Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
The Nobel Poet? I would have thought that Chile, with it's advanced mining industry would have a strong industrial base that manufactured most products. Solar gain can be counteracted with reflective surfaces cheaply. -
Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
At first reading/quick glance, it seems sensible. Does have a lot of drawbacks compared to mineral wool (internally) or ESP/EPX/PU boards (externally). I am not sure how the embodied energy (EE) figures compare to other materials. I had one of these to keep me warm when I was a teenager. Though others like this. -
Streamlining the planning process for small sites
SteamyTea replied to -rick-'s topic in Planning Permission
In my experience, whenever a government tries to make things simpler, all that happens is that a new, overcomplicated, system is created. Think MCS microgeneration. I did hear on the wireless this morning, that heat pumps can be fitted within a metre of a neighbouring boundary (without planning permission), will we interesting to see if the noise limits get changed. -
Insulating walls (and a flat roof?) with perlite?
SteamyTea replied to Garald's topic in Heat Insulation
I suspect there is a problem with water absorbtion, this would not only increase the thermal conductivity, but would weight more. Expanded perlite can have a density of between 32 and 400 kg/m³. If something is not in common usage, there is generally a good reason for that. Does ChatGPT have anything to say about the energy needed to process it into expanded form? -
What to do with bare earth garden during build?
SteamyTea replied to Ed_'s topic in Landscaping, Decking & Patios
Très bien -
Was it a system installed under the MCS? If so, you may be able to get so redress.
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What to do with bare earth garden during build?
SteamyTea replied to Ed_'s topic in Landscaping, Decking & Patios
Add some garlic, sauté lightly and you can eat the snails as well, Monsieur. If you have parts that do not get much traffic, you can carpet them to stop growth. (Is that sounding rude, waiting for a rug or welcome mat comment) -
Lime only mortar? (i.e. no cement)
SteamyTea replied to Gibdog's topic in Bricklaying, Blockwork & Mortar
This is a modification of the Doomsday arguenent, used by Prof. J Richard Gotta. Tends to hold true if you don't count the buildings that have failed and turned to dust. -
Buffer Tank Hot when Heating Mode Turned Off
SteamyTea replied to James1234's topic in Air Source Heat Pumps (ASHP)
If that is the case, then the part load i.e. most of the time, performance is probably compromised quite badly. It is a real shame that all heat pumps don't have a decent datalogger on them. Data shows so much. -
Resin didn't cure, odour problem
SteamyTea replied to Super_Paulie's topic in General Self Build & DIY Discussion
The only way to get rid of the smell, which can linger for years, especially if it is hot, to to completely remove all the 'infect area' and then a bit more. You could try adding some liquid hardener, but you will probably only replace one smell with another. I can still remember, from over 50 years ago, the first time I forgot to add the hardener to a polyester mix. I also remember cleaning up the mess, was about 5 kilo mix. -
Battery Storage - Lifespan and Replacement
SteamyTea replied to marmott2334's topic in Energy Storage
