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horizontal

In astronomy, geography, and related sciences and contexts, a direction or plane passing by a given point is said to be vertical if it contains the local gravity direction at that point.

Conversely, a direction or plane is said to be horizontal if it is perpendicular to the vertical direction.
In general, something that is vertical can be drawn from up to down (or down to up), such as the y-axis in the Cartesian coordinate system.

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  1. S

    Mixing Vertical and Horizontal Combi Flue

    My installation has been classed as Dangerous 'Do not use' by my boiler manufacturer. I have an Ideal Logic 30kw Combi boiler mounted as high as can be on the kitchen wall. Flue exits out through the wall via an elbow but emerges above a flat roof. Unfortunately it's somewhat less than the...
  2. J

    Adding shower waste to horizontal 110mm pipe

    Good afternoon, please see my attached diagrams One is the current layout And one is where I propose to add another boss to add a shower waste. This horizontal run is below floorboards but I can't get to the TEE or under the tee to add a boss vertically. ( the current Bath is bossed way in...
  3. P

    Gledhill StainlessLITE Plus Horizontal 204 L Cylinder

    Hi All, I have recently changed heating source to a heat pump and so I have had a new water cylinder installed (different internal element required). This means that I have a 2.5 year old StainlessLITE Plus Horizontal unvented mains pressure 204L cylinder left over. We had it installed in Jan...
  4. A

    How to convert horizontal to vertical inlet pipes?

    I have a mixer shower with standard 15cm inlet pipe spacing designed to accept vertical (downward) inlet pipes. The plumbing from my wall has two inlet pipes at the right (15cm) spacing, but they emerge straight out from the wall horizontally instead of descending vertically. Can anyone...
  5. Z

    Thoughts on Prostel unvented cylinder horizontal

    Just looking at getting an unvented cylinder. Screwfix do an RM cylinder called Prostel. Anybody had experience with these. £830 for 250l horizontal.
  6. Z

    Preplumbed horizontal unvented cylinder

    Anyone know of preplumbed horizontal unvented cylinder apart from the Telford Tempest. My plumber has said they save a lot of time but he's fitted gledhill vertical before I think.
  7. Z

    Unvented cylinder with heat only boiler??

    I'd like to install an unvented cylinder in the loft. With limited headroom it would have to be horizontal. I want to keep my existing valiant condensing boiler. I currently have a vented set up. A couple of plumbers said this could work. Will the feed and expansion tank for the central...
  8. S

    Multiple Sinks on horizontal branch?

    Long time listener, first time caller. I am finishing my basement but the one area I lack confidence is plumbing. I am looking to verify if what I have planned is acceptable. Framing is complete - The bathroom wall shares a wall with a wet bar on the other side. I have a 2" stack coming...
  9. B

    Can I soil pipe run horizontally?

    This is a follow-up to my earlier post Fitting a cistern (with frame) into a stud wall (100mm) (follow-up) and also to this post Can i connect waste pipes into soil pipe tee on a horizontal run? I (by @Illuminate). We've now had the toilet fitted, as described in the earlier post, with the soil...
  10. C

    Horizontal hot water cylinder install. Does this look correct?

    Anyone out there able to help? Is this correct or are there things wrong and if so what?
  11. I

    How to join washer waste onto another existing horizontal waste

    Hello, I have a question that is essentially how best do I join a washer waste onto an existing horizontal waste? I have attached a drawing which hopefully shows better than I can explain!? The location is a garage where the washer and tumble dryer will be relocated to. The existing horizontal...
  12. A

    Poor fall on soil pipe and toilet blocking. Advice for fixes please?

    Hi all, looking for some soil pipe/stack help please. I bought my first house end December and unfortunately had a toilet pipe blockage within a month. Place is old but was renovated in 2014 so thought it would be in decent nick! Plumber came out to rod it end January from the access hatch...
  13. I

    Can i connect waste pipes into soil pipe tee on a horizontal run? I

    Obviously I know the boss parts on a soil pipe tee are there to be cut out to connect waste pipes and I have done this when it is not a horizontal run but i was wondering if i can connect the soil tee horizontally and still connect waste from it? I have attached the part and rotated the inage on...
  14. M

    number of toilets on a horizontal pipe

    hi all, just about to start a job converting old church building to nursery school architects plan shows 4 toilets (low height) in a row connected to stack at the end, customer wants 5, will this work, as can`t get any fall in pipe as all 5 toilets need to be same height ? can`t get much insight...
  15. H

    Bathroom Waste Layout - Horizontal Soil Pipe

    Hello, I would very much appreciate some help/feedback on what I am proposing for my very small ensuite bathroom. While refurbishing it I’m proposing to add a shower. It’s just 1.2m x 1.6m. I have seen similar posts to this on the forum but not quite my situation. I am proposing to run one...
  16. O

    Horizontal Soil Pipe connections

    I am refurbishing a bathroom and adjoining en-suite which back onto each other and are on the first floor of the house. Both have a toilet, washbasin and shower. The showers are electric and the flow rates are not excessive. There is a straight horizontal soil pipe (with appropriate slope 1:40)...
  17. J

    Will this destrat pump be okay for my Telford horizontal cylinder?

    Hi all, My first post so please forgive me if I get some of the terminology wrong! We recently had a 240 litre Telford horizontal direct unvented cylinder installed. It has a single 3kw immersion (it came with two immersions, but we only had sufficient electrical power to the place it was...
  18. N

    changing horizontal radiator for vertical

    Can anyone advise me on changing a horizontal radiator for 2 verticals. Do they have the same output?
  19. R

    4" soil workable falls

    Hi All. I am currrently installing a toilet on ground floor. I have cango'ed a channel in concrete floor to back yard and pick up existing waste. I have got a number of different opinions including google regarding fall. It is about a 12 Metre run with no bends. The following falls I was given...
  20. BobThomas

    Valve fitting orientation... horizontal / vertical ?

    Dear all, i’ll get this out of the way first... I’m not a plumber, however i’ve done a fair amount albeit a long time ago (in a galaxy far far away), and i’m after a bit of ‘best practice’ advice, apologies if this is perhaps a daft question ! When fitting, for example, a full-bore pegler type...
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