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venting

Gas venting, more specifically known as natural-gas venting or methane venting, is the intentional and controlled release of gases containing alkane hydrocarbons - predominately methane - into earth's atmosphere.
It is a widely used method for disposal of unwanted gases which are produced during the extraction of coal and crude oil.
Such gases may lack value when they are not recyclable into the production process, have no export route to consumer markets, or are surplus to near-term demand.
In cases where the gases have value to the producer, substantial amounts may also be vented from the equipment used for gas collection, transport, and distribution.
Gas venting contributes strongly to climate change. Nevertheless many individual cases are sufficiently small and dispersed to be deemed "safe" with regard to immediate health hazards.
Large and concentrated releases are usually abated with gas flares to produce relatively less-harmful carbon dioxide gas.
Gas venting and flaring that are performed as routine practices are especially wasteful and may be eliminated in many modern industrial operations, where other low-cost options are available to utilize the gas.Gas venting is not to be confused with similar types of gas release, such as those from:

emergency pressure relief as a method of last resort to prevent equipment damage and safeguard life, or
fugitive gas emissions which are unintentional gas leaks that occur in coal, oil, and gas operations, such as from orphan wellsGas venting should also not be confused with "gas seepage" from the earth or oceans - either natural or due to human activity.

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  1. G

    Venting of foul drain

    I'd be grateful for some advice from any drainage gurus here! I'm about 5 years now into building a small bungalow in the woods which is now wind and weatherproof. At the rate I am going it will probably take another 5 years to complete it - I keep getting stuck on details and this is the...
  2. S

    Venting a return circulating pipe from boiler (open vented system)

    Hi I am thinking of modifying the pipework to my Baxi 24 solo he. At the moment the feed and return both point upwards. I intend to feed the return from the bottom, so I will need a vent on the return, any suggestions of the best way to go about it. I am thinking of removing the supplied return...
  3. K

    Help with venting soil pipe

    Stack 1 is internal and vents through the roof, stack 2 is external, do I need to vent stack 2 to roof level ? At the moment it is only a vent. The drawing shows to venting pipes, so is it possible to get rid of stack 2 ? Any help would be appreciated
  4. A

    Boiler venting into header tank?

    I have a 27 year old Baxi Solo and open vent which keeps venting hot water into the header tank. I have replaced the pump. The zone valves are working fine. I also have a bypass valve fitted. I have power flushed the system and also flushed with mains water. The system has always had inhibitor...
  5. D

    Serious venting problem

    moved into a flat last week a 2nd floor 2 bedroom flat the second bedroom has a smell coming for it and thought asit was closed for a month it probably wanted freshening with windows open butsmell got worse over few days we noticed saturday that there is a vertical ventsize of a envelope on a...
  6. P

    Soil venting issue

    Hi , having an issue with a bathroom I installed 5-6 month ago , it's seems as though the toilet is struggling for air and not venting properly. originaly the soil stack was external and vented to the atmosphere , the customer has had a conservatory installed so the soil stack has been cut...
  7. F

    Pumping over or venting

    Problem with pumping over on a domestic vented central heating system.... I am a fairly capable diy'er and have started to tackle the CH in our home, the system had started pumping over into the F&E tank. I had initially put it down to a failing pump (getting noisy) pump changed bit of gunk...
  8. R

    balanced flue in a compartment reg help

    Hi all, I'm fitting a balanced flue burner output of 26kw I've worked out vent space of 143cm2 venting outside high and low. But I haven't fitted in a compartment before, I have been told no ventilation is required surely that's not right. Would be grateful for any help
  9. B

    PRV Venting?

    Boulter, releasing pressure via prv but only on heating, not Dhw, probable causes?? Thanks
  10. S

    hot water venting

    Hi, I'm a new poster here and am hopeful that somebody can clarify the following. We're having a wood burning stove with a boiler installed, replacing an ancient rayburn. To connect it to the existing indirect system I am told that the present header tank needs to be replaced by a new heatproof...
  11. W

    Potterton suprima 60 boiler fault

    I have a Potterton Suprima 30L-100L boiler which has had the PCB upgraded. I had a problem with hot water venting into the header tank and called a plumber who changed the pump. It still vented until he turned the pump to the lowest of it's three settings. This then resulted in the radiators...
  12. B

    Hot water keeps venting into header tank

    I have an Ideal Icos HE15 open vent boiler which is 8 years old. Recently, the boiler keeps cutting out only a few minutes after firing, meaning the radiators only get warm, nowhere near hot. Just before it cuts out, hot water "spurts" a few times into the header tank. Two or three minutes...
  13. S

    Venting boiler

    Hi I am having a strange problem where my boiler will come on of it own accord without the pump on or any valves open and boils over into the expansion tank, yesterday morning the heating was on from 6:30 to 8:30 and around 11 this happened (next on is at 4:30pm). It happened again at 5am this...
  14. W

    System Venting

    Have recently installed a new multi fuel stove with back boiler to heat radiators only - totally a ground floor system. Have used an expansion tank with cold feed and also a 22mm vent pipe to the top of the expansion tank. Have used a pipe stat to kick in the pump and have currently set this at...
  15. 1

    Venting air from Expansion Vessel

    I'm fitting an expansion vessel in a new system. The boiler is low level and the feed/return at low level for a couple of metres before going into the floor. Expansion vessel will be on the return just before the boiler, but it will be fitted in cupboard above the level of the return pipe...
  16. G

    Venting a performa 28

    Why don't potterton performa's have a auto vent above the combustion chamber? I know its not that common, but went to a performa 28 today, drained the boiler and on re-filling found could not for the life of me clear the air from it. The pump vent was seized and i could hear the air in the...
  17. S

    Venting old Bali back boiler?

    I have one of the old back boiler systems with the fire surround, I have had it serviced and it's in full working order, the problem is I'm redecorating the room and the fire is really ugly, Is it possible to put a radiator cover around the old fire? The back boiler is used for the central...
  18. R

    Boiler venting query

    hi need to replace existing 35 yr old floor standing boiler which is in its own cupboard with own chimney in kitchen. (1955 house) Understand we cannot use existing chimney for new flu? or do i have this wrong? One side of boiler cupboard used to be an outside wall but this now has...
  19. J

    AAV venting constantly venting when system is started.

    went to a house today. ideal classic with an unvented cylinder that is a y plan that has been converted to a sealed system. problem is that when it is started the bottle vent which is situated just before the flow into the cylinder constantly vents along with red iron oxide when the system is...
  20. S

    Flowmaster unvented system venting water to outside of house

    I have noticed that when the emersion heater comes on some water pours out of the expansion pipe. This happens every day. Then all of a sudden the whole tank emptied out of the wall with really hot water. The system was then ok and now it is just filling with water all the time and it is coming...
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