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A need is something that is necessary for an organism to live a healthy life. Needs are distinguished from wants. In the case of a need, a deficiency causes a clear adverse outcome: a dysfunction or death. In other words, a need is something required for a safe, stable and healthy life (e.g. air, water, food, land, shelter) while a want is a desire, wish or aspiration. When needs or wants are backed by purchasing power, they have the potential to become economic demands.
Basic needs such as air, water, food and protection from environmental dangers are necessary for an organism to live. In addition to basic needs, humans also have needs of a social or societal nature such as the human need to socialise or belong to a family unit or group. Needs can be objective and physical, such as the need for food, or psychical and subjective, such as the need for self-esteem.
Needs and wants are a matter of interest in, and form a common substrate for, the fields of philosophy, biology, psychology, social science, economics, marketing and politics.

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  1. D

    analyzer needing calibrated?

    hi how can one tell if analyzer needs re calibrated? iv a kane 425 and seems to be giving a ratio of 0.000. when it feels like it sometimes a ratio will show but then disappear , with a 30 ppm co surely it should be giving me a ratio, this has only started happening and on my last service the...
  2. D

    newbie needing advice

    Hi all, ive just had new radiators fitted with trv's( all except 1) the only prob is that the hallway where the room stat is has the rad without a trv and its only a small hallway, my boiler keeps firing on and off. could it be that the room stat is shutting the boiler off and the rads are...
  3. N

    any one in plymouth or cornwall needing a plumbers mate or apprentice please

    High i am 29 and have been looking for a carrer change so decided to look into and hopefully work for a plumber and gain a qulification at the same time i have no experiance but i am a grafter willing to learn and give 110 % i have my own transport clean licence and wont let any one down if they...
    • normski
    • Thread
    • apprentice learn needing please plumbers plumbers mate trying willing
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  4. L

    Trainee plumber needing work/experience in south ***bria/furness.

    Hi all, I'm a 36 yr old trainee plumber, I'm trying to get my certificates signed off and then I can move on to get my ACS. I really need someone to work with in order to do so. I have most of my own tools, I'm willing to work as a trainee, employee, on a self employed basis or for nothing if...
  5. M

    Megaflow needing topping up daily

    I have a megaflow system that has been working fine for a few years. Recently though (over the six months or so), Ive had to top up the expansion tank at ever increasing frequency. My plumber has changed the expansion tank (apparently the membrane had gone, so i guess it needed doing anyway)...
  6. D

    Massive central heating problem. Novice needing help!

    Hi. my central heating system is horrible. its an old one with the back boiler in my living room, which i cant get to without taking out the fireplace. when i switch my heating on, the gas pipes up fine, and the pump seems to start working properly. the radiators upstairs are blazing hot...
    • DenProject
    • Thread
    • bathroom boiler central central heating system cold control gas help hot kitchen needing novice pipe pipes plumber problem pump radiators switch system valves water
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  7. M

    Newbie needing help. :)

    Ok, this has baffled me and I really don't know where else to look. My downstairs radiators, and downstairs only won't work. They're all fed from seperate radiators from upstairs, but none will work. Upstairs, they're great..all roastin' hot. Anyone any ideas? Someone please help, 'cos...
    • mrwinkywoo
    • Thread
    • air backup cold fed flow head heating help hot hot water needing newbie problem pump radiators sludge system vent water work
    • Replies: 9
    • Forum: Plumbing Jobs | The Job-board
  8. B

    Complete novice needing a new system

    I have got the builders in to build me a side return extension in a four-bedroom terraced house in South London. It means remodelling the kitchen, putting in a shower room and ... sorting out the plumbing. We have an open vent sealed system with an Ideal Classic LXFF boiler, about 8 years old, a...
    • bice
    • Thread
    • boiler cold cold water cold water tank combi combi boiler complete condensing copper eco efficiency efficient energy expansion hot hot water london needing novice plumbing pressurised replacement sealed shower system tank vaillant vent vessel water worcester
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  9. L

    LEVEL 3 plumber needing experience!

    Hello I have passed level 2 technical certificate and findind it hard to find employment/ experience. I have now gone on to do the level 3 technical certificate working towards that and my water regs, energy effiency license, unvented license and solar license. However i need experience to gain...
    • Lewis Bennett
    • Thread
    • experience free level needing plumber solar travel unvented water
    • Replies: 0
    • Forum: Plumbing Jobs | The Job-board
  10. P

    Hi everybody, needing some advice

    Hi all, now a member of another forum. I have a small problem, hopefully. My head is spinning having searched the web for answers and now I am confused. I have a Glow worm Micron boiler downstairs and on the landing cupboard I have an indirect hot water cylinder which we have just replaced in...
    • Pilch
    • Thread
    • advice boiler central heating system cylinder glow worm hot hot water hot water cylinder hotwater indirect motorised valve needing over run pipe pipes plumbers plumbing problem pump reset system valve water web
    • Replies: 5
    • Forum: Plumbing Jobs | The Job-board
  11. S

    experienced plumbing needing work and further training

    hi I have about 3 years work experience in plumbing and was working for a company over in Northampton until they got into money troubles and had to make me redundant and I haven't been able to find further employment since, I have my own van and tools can anyone help?!?!?!? [email protected]
    • shaunhighcock
    • Thread
    • cheap costs difficult experienced further insurance job jobs liability needing plumber plumbing public redundant tools training van website work
    • Replies: 10
    • Forum: Plumbing Jobs | The Job-board
  12. L

    Hi. New plumber (nearly) needing help!

    Hello everyone. After a disastrous year last year getting hit with redundacy I decided I would get training in plumbing to better my chances of finding a job and keeping it. I Booked myself on BTSC's plumbing course, the full lot including gas. I am now finished my C&G certificates I have my...
    • leekeyjug
    • Thread
    • boilers gas help job london nearly needing new guy new plumber nvq plumber plumbers plumbing tips tools training unvented water work
    • Replies: 3
    • Forum: Plumbing Jobs | The Job-board
  13. W

    Novice needing help!

    Hi There, I am a complete novice so please forgive me if I say something stupid - this is my first post here and I am after a little help. We have an oil fired central heating system which fires our radiators and hot water. Last week, we stupidly ran out of oil :mad: I had more delivered and...
    • wonderfali911
    • Thread
    • air boiler burner central central heating system cleaning cold filter help hot hot water lockout needing novice oil pipe pipes pump radiators system tank valve water
    • Replies: 1
    • Forum: Plumbing Jobs | The Job-board
  14. O

    is there a regulation about WHB needing an overflow?

    hi all, just fitted a nice new shiny vanity unit for someone. this thing came all the way from Germany i think. i took one look at it and said "there aint no hole for an overflow" its a wierd one, it had pre drilled holes for the tap set and the plug hole but no overflow, it is made from a...
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