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gas
Gas is one of the four fundamental states of matter (the others being solid, liquid, and plasma).A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture, such as air, contains a variety of pure gases. What distinguishes a gas from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer.
The gaseous state of matter occurs between the liquid and plasma states, the latter of which provides the upper temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases which are gaining increasing attention.
High-density atomic gases super-cooled to very low temperatures are classified by their statistical behavior as either Bose gases or Fermi gases. For a comprehensive listing of these exotic states of matter see list of states of matter.
Hi everyone, I hope someone can help as I'm very worried and help is taking a while.
Around 5am this morning our fire alarm went off, we now think it might also be connected to the carbon monoxide alarm. Got up, checking everything, no smell, no fire etc, assumed maybe the battery is running...
Hi guys, new to this forum. Im a heating engineer with my own business, we are a new company called KRE Heating Services. We carry out a good amount of boiler installations and looking for a competent engineer who can help out with these. Looking for someone who's reliable and experienced. I pay...
Hi folks,
I have newish gas boiler in 5-bed period red-brick house.
The ENTIRE house has underfloor heating which works pretty well.
However, my gas boiler provides heat for underfloor heating and also heat for hot water. Obviously these are at totally different temperatures.
ALso, there are...
Hi everyone
I'm about to progress from Level 2 C&G to Level 3 (starting in September):
I'd always thought i would do the Level 3 Gas, as this was the only course my local college offered, but i've just found out they're now also offering Level 3 Plumbing and Heating.
Does anyone have any advice...
I have bought a property and this has a boiler and an immersion heater with a pump. If electric heater is off the boiler should heat the water as well.
I have reinstated the water pressure as the old vendor has drained the whole system. As long as I had these airlocks the boiler was complaining...
Hi,
I have a two bedroomed flat that I rent which I am going to completely renovate. I have pretty much decided on electric radiators but not sure how to heat the water. Seems like instant water has problems with filling a bath and so will probably need a hot water cylinder. Should I be heating...
Afternoon everyone.
Could somebody state the regulation number that dictates denso tape is no longer suitable for protecting gas pipe as it could mask a potential leak? Appreciate it, thanks.
Hi everyone, I’m after some advice.
I would like to make the move into gas and heating engineering. Currently I’m looking at the routes available and think that going through a training centre would be most suitable for me.
Some background: I’m a junior structural engineer and have spent...
Mitsubishi Ecodan 2011 8.5kw
Hy Guys, I have just installed a second hand ecodan, all seemed to be going well until i noticed that the flow temp doesn't increase much, infact 2 degrees in 40 mins, then the pump shut off with a over temperature warning on the gas side.
I have it piped up to a...
Hi, I'm wondering if anyone can help with a query.
We have recently had a new kitchen installed and are arranging for our freestanding gas cooker to be fitted (Leisure Gourmet Cooker 60cm)
I have read that there needs to be a 20mm gap between the sides of the cooker to meet the Gas Safe...
Evening all,
I’ve got a query and hopefully one of you lads/lasses can help me!
I’ve got a lad working for me, he’s been in the plumbing trade coming on 10 years now - he’s got all his NVQ’s including his G3 etc etc but no gas.
He’s recently approached me and asked me if he can upskill to...
Hi folks bit of a dillema here an could do with picking your brains, I've an s plan 330+ british gas boiler system that's not firing when the heatings being called for, it fires fine for the hot water zone valve for the hot water moves fine but the heating won't kick over when it's being called...
Hi everyone - Recently bought a house which is currently heated via FHW via an oil-fired boiler. Hot water is also provided by the boiler (via a tankless coil inside boiler). There are gas lines at the street, and the gas co is willing to bring gas into my house & install a meter for a $1000...
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Hi All,
I am new to the forum and am looking for any assistance to identify the gas fire in the photo's. Unfortunately the data plate is not present and we have no manual so unable to obtain a CP12 certificate. Can anyone advise what make/ model it is or point us in the direction of a...
Hi,
I'm hoping someone has some experience with this:
I'm trying to arrange for my gas Rayburn to have its heating and hot water side isolated, whilst still being able to use the oven.
My plumber has concerns over whether or not this is possible, I.E. he can remove the flow and return, but...
We are pleased to announce due to popular demand that the GID1 Essential Gas Safety Manual has been revised to include a super strong binding.
We have listened to your feedback about how much these books get used and have acted to make them stronger so they can take as much use as you can throw...
The holder for the test nipple is loose moved when tightening and un-tightening the test nipple. Is it usual to just unscrew this, paste and tighten back up?
I need to move my gas meter about 6 feet away. The supply pipe would have to go back and under the wall behind as in the pictures. How do I go about it please? Do I need to contact British Gas or Gas Safe engineers do this kind of thing?
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