SteamyTea

Perfectly possible to prepare any food in that manner. Generally cheaper to buy semi prepared food though. To make an un processed vegan mean, first buy a field, then leave alone for 3 years, then plant your choice of fruit and veg, then wait till harvest time, then harvest and throw most away as it is diseased and maggot eaten. Then boil or roast. Then throw away and get a donner kebab.

The thing about electricity is it is very flexible, not only for the end user, but also in the methods it can be generated. Non gas powered generation can be solar, wind, nuclear, biomass, oil, land fill gas, hydro, wave (one day, maybe), tidal (will take longer than nuclear), and the easy one, importing. Wind power now has a strike price of £37.35/MWh. For the last year, wholesale natural gas has had a day ahead price of around £65/MWh (quite hard to get an exact figure). That is up from £16/MWh back in February 2021. Now I doubt in the near future (next 3 years) we are going to see gas prices much less than £30/MWh, so going to be a similar price to new build renewables. Also, at the moment, if we really want gas, we are going to have to outbid others. Going to be much easier to reduce waste, which is not the same as improving efficiency. Hopefully the current high prices will solve this, but people can be twats and feel entitled to waste their own money. Thing is, they are also waste everyone else's money as we are all now chipping in. I am not sure how we are going to get that message across without having a similar attitude that the nation has taken to smokers (but oddly enough not drinkers who cause a lot more problems). So who is going to go around a fully lit up house and ask them to turn some of the lights off?

Should work really quick. May be worth looking into an enthalpy MVHR, grad some of the latent heat of condensation back, and stop the house getting too dry, not that it really a problem here.

Just stick some Fairy Liquid in it. And most a video of the result.

Twice more that I have.

Yep. @Jack757 Don't worry about the bickering, post away.

Should that not have read "I would not have done that". You really don't help your cause do you.

Much better at 0.18 to 0.09 W.m-2K-1 and between 0.05 to 3 ACH. Bet then have never, ever managed 0.05 ACH, or 0.09 W.m-2K-1 for that matter.

Interesting concept. Probably cost more than just the maximum energy storage of 10 kWh, probably nearer 12 kWh needed overall, so £0.9. Assuming you can export the full 10 kWh back for £1.50, that is £0.60/day. So the truer value is 6p/kWh.

Just had a quick look at passivhaus standards, 0.8 W.m-2K-1 for walls and 0.6 ACH. Quick look at the same info on the Potton site, Ultima 1.3-1.5 W.m-2K-1 and between 1 and 3 ACH. Not in the same league. Like saying a Ford Fiesta STi is fast, then being taken out in a Zonda.

Says our pet architect, who thinks that everyone that designs their own home is wrong.

When did you get that figure 2010?

Yes. It is the easy one to measure. Absolute Humidity, AH, is more useful as you can calculate the total mass of water in the air. You can convert between the two, but it is messy. Relative humidity (RH) The ratio of the actual amount of water vapor in the air to the amount it could hold when saturated is expressed as a percentage, or the ratio of the actual vapor pressure to the saturation vapor pressure is expressed as a percentage. Absolute humidity (AH) The mass of water vapor in a unit volume of air. It is a measure of the actual water vapor content of the air. Thanks to the World Meteorological Organization, we can find saturation vapor pressure given the temperature and atmospheric pressure (read more at Saturation vapor pressure) From the relative humidity and saturation vapor pressure, we can find the actual vapor pressure. Then we can use the general law of perfect gases In our case this is where R is the universal gas constant defined as 8313.6, and Rv is the specific gas constant for water vapor defined as 461.5 Thus we can express mass to volume ratio as , which is absolute humidity. So, for 25 degrees centigrade and 60% relative humidity, one cubic meter of moist air contains about 14 grams of water, which corresponds to conversion table values I've found before.

It will be interesting to see if any mould appears with your magical local climate. Or maybe with it being warm, the problem mysteriously vanishes.

I often read on here how people hate fitting mineral wool insulation, don't really know why. When I went to the timber frame company in Redruth a few years back, the guys fitting the insulation rolled out the wool onto a large table, with the roll on a spindle frame, then thy had a saw that easily cut though it. Very similar to when I used to cut up chopped strand mat and some glass fibre weaves. I used to just use a Stanley knife into a thin slot on the cutting table. Had a guide at the top to make sure the cuts where at 90° to the roll. Marked off, on the cutting table, with a bit fat marker pen, the most common lengths. Took seconds to cut up and not real mess or hassle at all. If I needed a lot of thin strips, I just cut the roll up to the required width, then put it on the roll frame. I have seen people cutting stuff up on the floor, or rolling off the roll and using scissors. Never ends well. So, why are people finding it so hard to cut and fit mineral wool insulation?

It is a good insulation material, ticks a lot of 'sustainable' boxes as well. The two really big advantages are its sound deadening properties and thermal inertia (sometimes referred to as decrement delay, but if people call it thermal mass, they don't know what they are talking about). Thermal inertia is generally better in materials that have a carbon/hydrogen or an oxygen/hydrogen bond. Get both of those bonds in timber and a lot of organic materials. You can't trick nature.

Are you asking why, when it gets colder, water vapour condenses?

Get it designed right and it will be fit and forget, nothing for the customers to fiddle with.

Storage heaters, fan heater, panel heaters, infrared, and even oil filled electric heater are all resistance heater. 1 kWh of electricity in, 1 kWh of thermal energy out. Have you considered Air to Air Heat Pumps or maybe a normal ASHP that will also do the hot water.

You must have been naughty and had your IP blocked. Einstein's Explanation Of Photoelectric Effect The photoelectric effect is a phenomenon where electrons are emitted from the metal surface when light of sufficient frequency is incident upon it. The concept of the photoelectric effect was first documented in 1887 by Heinrich Hertz and later by Lenard in 1902. But both the observations of the photoelectric effect could not be explained by Maxwell’s electromagnetic wave theory of light. Hertz (who had proved the wave theory) himself did not pursue the matter as he felt sure that it could be explained by the wave theory. However, the concept failed in the following accounts: According to the wave theory, energy is uniformly distributed across the wavefront and is dependent only on the intensity of the beam. This implies that the kinetic energy of electrons increases with light intensity. However, the kinetic energy was independent of light intensity. Wave theory says that light of any frequency should be capable of ejecting electrons. But electron emission occurred only for frequencies larger than a threshold frequency (ν0). Since energy is dependent on intensity according to wave theory, the low-intensity light should emit electrons after some time so that the electrons can acquire sufficient energy to get emitted. However, electron emission was spontaneous no matter how small the intensity of light. Following is the table with links of other experiment related to the photoelectric effect: Hertz And Lenard’s Observations Of The Photoelectric Effect Einstein’s Explanation of Photoelectric Effect Einstein resolved this problem using Planck’s revolutionary idea that light was a particle. The energy carried by each particle of light (called quanta or photon) is dependent on the light’s frequency (ν) as shown: E = hν Where h = Planck’s constant = 6.6261 × 10-34 Js. Since light is bundled up into photons, Einstein theorized that when a photon falls on the surface of a metal, the entire photon’s energy is transferred to the electron. A part of this energy is used to remove the electron from the metal atom’s grasp and the rest is given to the ejected electron as kinetic energy. Electrons emitted from underneath the metal surface lose some kinetic energy during the collision. But the surface electrons carry all the kinetic energy imparted by the photon and have the maximum kinetic energy. We can write this mathematically as: Energy of photon = energy required to eject an electron (work function) + Maximum kinetic energy of the electron E = W + KE hv = W + KE KE = hv – w At the threshold frequency, ν0 electrons are just ejected and do not have any kinetic energy. Below this frequency, there is no electron emission. Thus, the energy of a photon with this frequency must be the work function of the metal. w = hv0 Thus, Maximum kinetic energy equation becomes: KE = 1/2mv2max=hv–hv0 1/2mv2max=h(v−v0) Vmax is the maximum kinetic energy of the electron. It is calculated experimentally using the stopping potential. Please read our article on Lenard’s observations to understand this part. Stopping potential = ev0 = 1/2mv2max Thus, Einstein explained the Photoelectric effect by using the particle nature of light. The below video is a quick revision of what is photoelectric effect:

Ask Einstein, he is to blame. https://byjus.com/physics/einsteins-explaination/

But will probably agree. Forgot to mention DIN. And WADE, which is just a pisstake name for what happens after they leave.

Why, our climate is very benign compared to Canada. Like everything, if it is done right there will not be a problem.

You can't have asked a plumber, they would have said: "15mm, 3/4", BSP, 22mm onto a 7/8", couple of 6 inch bends, apart from the 175mm one, inch flexi......"

Whenever there is a good south westerly blowing, I always think of the Holy Grail. Sleeping off a supper of 3 tins of pilchards should allow the smell to carry to Wales.