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Posts
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Everything posted by SteamyTea
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Marginal improvements in the insulation, and the brick material, which can make them a little lighter. Some have fans built in as well. But basically, they are just heated bricks and a controllable flap to manage the airflow though them.
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High Capacity heat recovery?
SteamyTea replied to puntloos's topic in Mechanical Ventilation with Heat Recovery (MVHR)
If you have a 200m2 house that needs 15W.m-2 heat load, that is 3 kW. So your 1 kW server room should not be too taxing. Now this is not strictly true as some power is going though walls, floors, windows etc, but I don't think it is a problem. -
Reminds me of the system my Grandmother had (though she only had once circuit and the thermostat was in the cold hallway). One advantage of using a manifold is that you can control individual circuits, relatively easily. We have moved on since 1950.
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That is an advantage of them.
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Help me to understand GSHP performance
SteamyTea replied to Benguela's topic in Ground Source Heat Pumps (GSHP)
https://www.stiebel-eltron.co.uk/en/products-solutions/renewables/heat_pump/brine-water_heatpumps/wpf_05_07_10_13_s/wpf_13_s/technical-data.product.pdf From the limited info it seems it is non inverter and you just buy a different capacity model. But have a good look in the controller submenues. Who knows what may be hidden in there. -
Checklist: Insulation
SteamyTea replied to puntloos's topic in Energy Efficient & Sustainable Design Concepts
AKA basic engineering. There is a certain fixation with U-Value. This is mainly to do with legislation. The main thing, that usually gets forgotten, us that it is to do with thermal losses, and therefore energy consumption. So it is better to look at what you want to achieve in that area, then work to it i.e a north facing wall, which never gets solar radiation in it should have lower U-Value to counteract. -
They speak funny in Lincolnshire, just so they are not confused with people from Norfolk.
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New law on modifying cars, mowers and...
SteamyTea replied to Temp's topic in General Self Build & DIY Discussion
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Checklist: Insulation
SteamyTea replied to puntloos's topic in Energy Efficient & Sustainable Design Concepts
https://en.wikipedia.org/wiki/Thermal_diffusivity Just a measure of how much area a heat wave will travel in a set time. The smaller the number the better. Brick is 0.52 mm2.s-1 Wood is 0.082 mm2.s-1 -
With PV you may be dealing with up to 1000V DC. 12 modules in series will often have an open circuit of 530V DC, though it is usual to split that into two.
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Mica has led to apparent defects in building blocks
SteamyTea replied to Gus Potter's topic in Brick & Block
Not quite the same, as this is only the cladding stonework. https://www.cornwalllive.com/news/cornwall-news/stone-falls-cornwall-houses-due-4411304 Mate of mine lives on one of the developments, but his place is rendered, neighbours both sides aren't. -
I think with regards to the old RHI, they decided that they were cheap enough not to need subsidising. Fir a lot of places, they would be a viable heating system.
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PV and Battery to power security camera options
SteamyTea replied to pstunt's topic in Photovoltaics (PV)
Do you know what power the router and camera take? Find that out and working out the rest is easy. -
Always a good idea.
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Don't you mean century. Which in my experience, is what E7 kit easily lasts (I am in a soft water region).
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To a certain extent we know what they will be because of the strike prices. So wind us around £60, nuclear £100. Also, if you look at historical prices in the developed world, energy prices are about 5% of household income. There is no reason to think that electricity will have a higher increase rate than anything else.
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Looks to as if you will have to go head first into the column, not much room.
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How not to layout socket (seen on site today)
SteamyTea replied to Moonshine's topic in Electrics - Other
If it is a council house, it will have damp washing on it tomorrow. -
I pay 12p I pay 24p So E7 23,600 ASHP 25,400 The only maintenance I have had in my 34 year system is a new DHW cylinder, 200 quid. The 'overheating' during the day and the 'no heat when you need it' is just management. Just as we tell people that ASHP systems are not like gas, E7 with storage heaters are also not like gas.
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Lots of zones means a small minimum volume, so you will need a larger buffer tank. Then get even more insulation in. You could put in a basic loop on spreaders and accept the the carpet will insulate it a bit. But if you build it right, the MVHR will help heat it, and you can always fit a heating coil into the MVHR. I gave up heavy drinking after making a bedroom proposal. Dangerous places.
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Odd that, I sit in the sun by PZ harbour and sometimes chat to a retired bricky. He talks shit as well.
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Does he drink lager?
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You do have a very good warm roof as well.
