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conventional

A convention is a set of agreed, stipulated, or generally accepted standards, norms, social norms, or criteria, often taking the form of a custom.
In a social context, a convention may retain the character of an "unwritten law" of custom (for example, the manner in which people greet each other, such as by shaking each other's hands). Certain types of rules or customs may become law and sometimes they may be further codified to formalize or enforce the convention (for example, laws that define on which side of the road vehicles must be driven).
In physical sciences, numerical values (such as constants, quantities, or scales of measurement) are called conventional if they do not represent a measured property of nature, but originate in a convention, for example an average of many measurements, agreed between the scientists working with these values.

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  1. I

    Conventional boiler overflow issue.

    Good Morning all, could someone shed some light into why I get the following issue. I have a 8 year old conventional boiler, there are 2 tanks in the loft which I'd assume are the cold water storage and the feed and expansion tank (whatever that does). Every month one of these tanks spurts...
    • icemancomeths
    • Thread
    • basin bath boiler central heating system cistern cold cold water cold water storage connect conventional expansion flush hot hot water issue job loft oil overflow plumber pressure problem shower tap taps toilet valve van water
    • Replies: 32
    • Forum: Plumbing Jobs | The Job-board
  2. M

    Can you use a combi as a conventional boiler?

    Hello all. Im new to the forum and what im wondering is. Can you use a combi boiler as a conventional boiler?
    • M&W
    • Thread
    • boiler central heating system combi combi boiler condensing connect conventional convert cylinder expansion flow hot hot water kitchen motorised valves oil pressurised safe safety supply switch unvented valves water work
    • Replies: 7
    • Forum: Plumbing Jobs | The Job-board
  3. S

    powerflushing unit

    is a Silver Power Flush 200 unit any good for domestic heating systems? looking for a good power flusher take a look Silver Power Flush 200 Package
    • sav
    • Thread
    • boiler central heating system code compare conventional equipment flush head hose inside job magnaclean plumbing power pump tools trade van work
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  4. D

    ground breaker boxes

    what is the advantage to use a ground breaker box as opposed to a conventional stop tap below ground, apart from it may be easier to turn the water on and off and may eliminate the need for another stop tap
  5. A

    Baxi Solo PF Conventional boiler

    Recent problem with this boiler. Selecting HW/Heating, boiler files up fine, took me an hour to realise the water or heating wasnt working. Looking at the flame picture, the burner seems to produce a very small flame around the pilot area, only in the corner of the burner area. The burner is...
    • Alanc
    • Thread
    • baxi boiler burner central heating system conventional flame gas oil problem valve water
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  6. L

    which type of valve - thermostatic or standard via room thermostat

    can anyone help me decide how to choose between regular/ manual rad valves or thermostatic, if I want to be able to control the temperature in different parts of the house without the boiler being forced to go on pumping all the time? Or can I have a mixture of the two?:confused:
    • lodge farm esta
    • Thread
    • boiler central heating system cold control conventional hot manual parts rad valve room stat standard temperature thermostat thermostatic valve valves which
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  7. W

    Bahco Ergo Pipe Bender - anyone use it?

    Been looking at this pipe bender. Conventional pipe benders have always struck me as being fiddly and poorly designed, but I'm not so sure about parting with £75 for one that only does 15mm.
  8. M

    Ridgid E-110 Adjustable Spanner/Wrench

    Ridgid E-110 Hex Wrench, Great tool made by one of the leaders in the tool market, probably more ideal for the more commercial/industrial user - but is obviously just as conventional as a usual adjustable spanner. Great for Unions/Glands etc. Full lifetime Guarantee. RRP is £60, Going...
  9. J

    underfloor heating vs conventional rads

    hi, im trying to price up a a small 2 bedroom bungalow which will be built and we might sell on. Iv had experiance with underfloor and too much experiance with rads. Now they reackon running cost of underfloor is 25-40% cheaper due to lower temps. And one company claimed it take 40% less time to...
    • Jimbob
    • Thread
    • air bathroom boiler bungalow central heating system cold radiator conventional flow free hot rads install insulation motorised valve parts pipe price pump sealed system trade ufh under floor heating underfloor underfloor heating valve work
    • Replies: 6
    • Forum: Plumbing Jobs | The Job-board
  10. L

    Central heating Queries. Open vented conventional S-Plan system.

    Alright. I'm an apprentice currently studying the central heating unit of my course. I have a couple of queries regarding conventional S-Plan open vented systems. (Even more specifically close coupled systems). Why is it requisite that the feed and vent pipes running to a typical F&E cistern...
    • Logic
    • Thread
    • apprentice boiler central central heating system circulation cistern cold cold water conventional diy expansion flow motorised valves open vented overflowing pipe pipes pressure pump system tank valves vented water
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
  11. D

    ways i could link a wood burning stove to a conventional heating/hot water system

    hi there, in a nut shell, i have a customer that (like most of us) is complaining about the price of oil and gas etc. he wants me to link a wood burning stove to his existing system so that in the winter months he can just stoke the fire up and leave it on all of the time. Come the warmer...
    • dennis.bailey
    • Thread
    • boiler boilers burning central central heating system conventional could gas gas boiler hot hot water hot water system jobs oil price safe stove system water winter work
    • Replies: 4
    • Forum: Plumbing Jobs | The Job-board
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