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Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use the source code, design documents, or content of the product. The open-source model is a decentralized software development model that encourages open collaboration.
A main principle of open-source software development is peer production, with products such as source code, blueprints, and documentation freely available to the public. The open-source movement in software began as a response to the limitations of proprietary code. The model is used for projects such as in open-source appropriate technology, and open-source drug discovery.Open source promotes universal access via an open-source or free license to a product's design or blueprint, and universal redistribution of that design or blueprint. Before the phrase open source became widely adopted, developers and producers have used a variety of other terms. Open source gained hold with the rise of the Internet. The open-source software movement arose to clarify copyright, licensing, domain, and consumer issues.
Generally, open source refers to a computer program in which the source code is available to the general public for use or modification from its original design. Code is released under the terms of a software license. Depending on the license terms, others may then download, modify, and publish their version (fork) back to the community.
Many large formal institutions have sprung up to support the development of the open-source movement, including the Apache Software Foundation, which supports community projects such as the open-source framework Apache Hadoop and the open-source HTTP server Apache HTTP.

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  1. S

    Could anyone please help me source a particular toilet seat in the UK?

    Dear Community, Could anyone please help me source a particular toilet seat in the UK? Is there a UK supplier that specialises in toilet seats? Many thanks in advance for your help. The existing Valadares toilet (see 3 images attached for style of Valdares toilet I have). The measurements are...
  2. O

    Overflow likely source?

    I have a constant overflow coming from the main tank in the loft. It builds from a trickle to a pour. The isolation valve on stopcock is off. The expansion from immersion heater hangs over the tank, but is dry. This tank is highest in loft, so only source must be mains coming back up through the...
  3. B

    Servicing for Arotherm Vaillant 15KW Air Source Heat Pump (ASHP)

    Moved into a new property around 4 years ago with full 15Kw Vaillant Arotherm ASHP setup, after quite a few initial teething problems seems to run well over last couple of years. Long term just wondering if anyone can advise on servicing (in Berkshire area). Are there any independent specialist...
  4. Gasmk1

    anybody know much about the cylinders with integrated air source heat pumps

    anybody know much about the cylinders with integrated air source heat pumps
  5. C

    Air Source and underfloor heating in old bungalow

    Hello. I’m looking for some advice. We had a 1960’s bungalow in Cornwall with a wooden suspended floor. The old oil builder is 20 years old and so we want to replace it. We were looking at a Air Source Heat Pump with underfloor heating but the more we look at it the more concerned we are that it...
  6. J

    Can anyone help source a condensate trap

    Looking for Part Number 5106230. It's a condensate trap for a Potterton PowerMax boiler. Thanks
  7. G

    Finding source of shower leak

    Hoping that you can offer me some advice. We recently re-sealed our shower tray, all old sealant removed and new stuff put in well. It was left for 48 hours and first couple of test showers went fine. Today however water started dripping from a light fixture (now off at fuse box). Looking at the...
  8. PDS

    Air source heat pump and UFH

    Hi Guys, I’ve been asked to fit an air source heat pump with unvented hot water tank, and UFH on downstairs concrete slab and spreader plates upstairs. Has anyone fitted this before and taken pictures so I can see a neat or workable layout please? Look forward to hearing from you.
  9. T

    Air Source Heat Pump or Gas

    Hi hopefully be moving into a new 60’s 3bed semi. Currently has no gas main and only storage heaters. so been looking at air source heat pumps & central heating etc as an alternative to getting gas main, combi and central heating. Looking for some advise on best solution around costings and...
  10. A

    Small flat air source heat pump or gas heating??

    Hello chaps, I own (and let out) a small one bedroom flat which is the first floor of a small victorian house. The loft has been well insulated, double glazing but it is a solid brick wall with no cavity and not the warmest. It consists of three rooms only. It is currently heated by economy 7...
  11. A

    air source advise/instalation

    hi all . i have a 80,s build chalet bungalow,oil heated/radiators and log burner,the chalet design is fairly open plan with only 2 of three bedrooms 1 bathroom and one toliet, being seperated by doors from living room,kitchen ,dining room 2nd bathroom and upstairs bedroom all being open plan...
  12. P

    MHV system Ecocent maxi boiler needs fixing and servicing, and air source heat pump needs servicing

    Hi, our Ecocent Maxi 3001 boiler needs fixing. It comes on for a few seconds then blows the electrics. The immersion does work though when the boiler is on standby so we can get hot water. The manufacturer has indicated they assume the problem is the capacitor or the compressor. We’d like...
  13. king of pipes

    Need to source some valved domestic brass manifolds .

    As above need make up 2 - 12way valved manifolds for a project but its proving expensive anyone know of a supplier ? Regards kop.
  14. D

    Request for help to source 14 to 15mm pipe connector / reducer / joint please.

    I have a gas heating system in an 18 year old apartment block in the UK with concrete floors and would like to change and move the radiators but my plumber tells me he can't obtain the correct joints to match the 14mm pipe. One of them was leaking a little and I removed and tapped it up only to...
  15. F

    Ground source Heat Pump... My first one.

    I've nearly completed a Barn conversion on a 2 Acre plot. The ground collector pipes have all been Trenched in deeper than the land drainage on the site & deeper than the septic tank soakaway as well..... My theory on this is you can't freeze running water & winter ground water temperatures will...
  16. Dan

    Find a Renewable Energy Specialist - Solar Thermal, Ground Source Heat Pumps etc

    Find a renewable energy specialist. Ground-source heat pump installers. Biomass pallet and log boiler installers. Air and ground-source heat pump specialists. Find your local renewables specialists right here on the UK's largest plumbing advice website. Post a new thread in this forum category...
  17. D

    Whole house underfloor heating as only heat source. Yes or No?

    I'm having a full house refurb and extensions built and had always been keen to have underfloor heating and no radiators. We don't have any plans for a fire or burner either. Does anyone have any experience living solely with UFH? Would you recommend it or should I maybe go with UFH for the...
  18. D

    Ground source heat pumps test

    Hi currently in college studying level 3 city and guilds heat pumps. Currently on the test 'know the requirements to install, commission and handover heat pump systems' which is 77 questions long. All though it's a city and guilds test they haven't provided us with any resources (and apparently...
  19. C

    New house move, two appliances one water source

    Hi, I have one water supply and i want to run two appliances, a dish washer and a washing machine. The parts i have been looking at using are. Compression appliance tee from screw fix and a twin waste adapter from amazon, Would i need anything else ? Any advice on getting the ball...
  20. J

    15mm glued Plastic pipe & fittings

    Hi Guys Hoping someone can help. Came across a house in Devon completely plumbed with glued 15mm PVC type hard plastic pipe. (The lady wanted a basin replacing) The tap connectors were brass/copper imbedded in a plastic pipe connector, the pipe and fittings are white, with '15mm made in uk'...
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