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distance

Distance is a numerical measurement of how far apart objects or points are. In physics or everyday usage, distance may refer to a physical length or an estimation based on other criteria (e.g. "two counties over"). The distance from a point A to a point B is sometimes denoted as




|

A
B

|



{\displaystyle |AB|}
. In most cases, "distance from A to B" is interchangeable with "distance from B to A". In mathematics, a distance function or metric is a generalization of the concept of physical distance; it is a way of describing what it means for elements of some space to be "close to", or "far away from" each other.
In psychology and social sciences, distance is a non-numerical measurement; Psychological distance is defined as "the different ways in which an object might be removed from" the self along dimensions such as "time, space, social distance, and hypotheticality.

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  1. T

    Distance between cold pipe cross over hot

    Hello I need to cross over an existing copper hot water pipe with a cold 15mm mains copper pipe. Is there a standard I need to adhere to in terms of clearance?
  2. H

    Can the flue be bent upwards to meet the distance rule from a window?

    I had a combi boiler put in my rental property about 10 years ago by a contractor arranged by the letting agency and I assume qualified. Gas safety checks have never highlighted a problem. This year they have turned off the boiler because the bottom of the flue pipe is 200mm from the opening...
  3. R

    Toilet seats with distance between hinges of 270mm

    Hi Looking for a toilet seat (D shaped) with the distance between hinges of 270mm. Width of seat is about 410mm and length 440mm Any suggestions would be welcome. The toilet unit is Ideal Standard and is over 20 years old. It is is great condition, but the toilet lid is broken as a builder...
  4. M

    Distance between wall and radiator?

    Hello everybody! I have a question: I have replaced old radiator(was leaking) using brackets from old radiator, it seems to me that radiator is too close to the wall. Please see pictures attached. Question is: is it acceptable to leave it like that? or there should be some rules for how much...
  5. A

    What is the minimum distance between Speedfit connectors?

    I need to fit a valve into my sink feed and space is tight. Just enough to get a tool in to release them later. Thanks.
    • allexmyers
    • Thread
    • america between connectors distance minimum speedfit usa
    • Replies: 6
    • Forum: USA
  6. S

    waste pipe - minimum distance from stack?

    Im installing a wall hung toilet frame and just working out where everything needs to be positioned etc. I want to move the frame/toilet over to the right as far as possible but can anyone tell me if there is a minimum distance that should be used for a straight run before going into the...
    • Serval
    • Thread
    • america distance minimum pipe stack usa waste waste pipe
    • Replies: 3
    • Forum: USA
  7. M

    Distance between pipes in certain scenarios

    Hi, Having wet underfloor heating put in and been doing some reading, think pipe spacing is going to be 200 but read somewhere 100 from walls & sliding doors/bi-folds - is that correct ? What distance would people recommend from kitchen units ? I have a run against one wall and then a 1200...
  8. S

    Max distance for 10mm tails off 22mm flow and return

    I’m considering my options for moving (JG) pipework from an inaccessible place whilst the floor is up. One option might be to use 2 x JG 4-port manifolds, mounted in a much more convenient location. But, this would mean adding 2 - 3 metres to the 10mm tails (off flow and return) and i’m not sure...
    • smallsteve
    • Thread
    • 10mm 22mm america distance flow flow and return return speedfit tails usa
    • Replies: 16
    • Forum: USA
  9. P

    Where should the soil pipe enter through the slab?

    I'm building a new house and want to know is there a standard location\ distance from walls that the soil pipe should come up. The pipe will take a WC on the GF and then stack up to the 1st floor to take the bathroom above and then up to vent tile so he'll need a couple of T connectors which...
    • pobourne
    • Thread
    • america coming concrete distance pipe should soil soil pipe through usa walls where
    • Replies: 3
    • Forum: USA
  10. P

    Pex pipe-boiler: aerial distance

    I am adding radiators to my 2-pipe central heating. The whole piping is copper 22mm and microbore, and I'm extending it with 15mm pex barrier pipe graded for CH. I know that the first bit of pipes connected to the boiler must be copper, which is the case. However, I couldn't find whether there...
  11. P

    Vaillant Ecotec vertical flue minimum distance from soil pipe

    Hi All Has anyone ever questioned the reasons why Vaillant MIs for their vertical flue termination refer to damp exhaust air escapes from “channel vents” may condense in the air pipe and cause damage to the product, this would suggest that the flue terminal has to be at least 1 meter away on...
    • Paul Mc
    • Thread
    • distance ecotec flue minimum pipe soil soil pipe vaillant vertical
    • Replies: 7
    • Forum: Gas Engineers Forum
  12. O

    Flue distance from facias

    Hi can i get some advice, does the facia and soffit of the house class a eave, as the flue coming out of the wall is more then 200mm from the eave but only 20mm away from soffit and facia. Would it still need to be a distance of 200mm or would it be 75mm same as guttering and drain pipes...
  13. J

    Flue termination distance

    I’m going to be moving a Vokera Unica i32 on Monday. I had a quick look at the building while driving past and it looks like the steel gas service pipe running externally to the flat above is where the flue would come out so I’ll have to re direct it a bit. I was looking at BS 5440 and can’t...
  14. M

    Distance from gas main to water

    Does any body know what the distance between the two needs to be? I learnt it at college but cannot seem to find it now. Cheers
  15. L

    Hot water maximum distance??

    Hello everyone I'm new to the forum, I'm looking for some advice and piece of mind. I want to plumb a hot water tap to my kitchen (combi system). Unfortunately I've had the kitchen plastered and I've now decided i want to move the position of the sink, without seriously damaging the nice new...
  16. J

    Minimum distance above combi boiler?

    We were due to have a combi boiler fitted whilst we were away, however the plumber called to let me know that our desired location (see pic - white nylon bag pushed in hole, above metal track) was not achievable as it would result in the flue being above the ceiling and therefore not legal or...
  17. P

    Distance from main supply pipe or bolier most importnat for balancing

    Im going to balance my radiators because some are struggling, but I would like to understand the calc better. I have a central 22m supply and return pipe running from far left of house to far right of house through first floor joists, Boiler is at far left, pump is near boiler on supply pipe. I...
  18. T

    OK for waste to run uphill a short distance?

    Currently in the middle of a bathroom refit. Just had first-fix plumbing done and new flooring installed and plumber has sent me some photos of the pipework before flooring went down (see attached). The shower and sink waste combine into one before crossing the joists to get to the soil pipe...
  19. M

    Plastic cold water pipe distance from mains electrical cable

    Is there a required distance that a plastic cold water pipe needs to be from a mains electrical cable. Is an armored cable.
  20. A

    What size pipe to use for garden tap - long distance 80m? Overground not buried

    Two things. Customer has a huge garden, requiring a tap at the end. Firstly is it best to use say 25mm bore plastic pipe? Will I get better pressure by using a larger bore pipe, or lose pressure over that distance? Direct off mains. Secondly the customer does not want their garden dug up to put...
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