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CONFIG.SYS is the primary configuration file for the DOS and OS/2 operating systems. It is a special ASCII text file that contains user-accessible setup or configuration directives evaluated by the operating system's DOS BIOS (typically residing in IBMBIO.COM or IO.SYS) during boot. CONFIG.SYS was introduced with DOS 2.0.

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  1. M

    Vitodens 222-F combi storage boiler and loft shower pressure.

    I have a viessman vitodens 222F combi storage boiler on the ground floor. It has 100l capacity inbuilt cylinder which is delivered on mains pressure. I bought it hoping I could have two showers across floors running with hot water even if it’s a short while, while avoiding an unvented...
  2. dilligaf

    Heat storage tank only?

    Is it okay to use the boiler to heat the storage tank only whilst the central heating radiators are drained on with a conventional system?
  3. M

    How to prevent heat loss from a hydronic storage tank?

    I have a hydronic hot water storage tank located at floor level. The hot water flow and return pipes run up the wall into the ceiling space and then back down to floor level to the manifold. We are experiencing significant heat loss from the storage tank when the system is not circulating...
  4. J

    Storage Combi Boilers

    Do gas fired storage combi boilers store the water at high temperatures like say 75C? and if so do they have a internal TMV?. when the storage runs out presume they then just carry on like any combi boiler?. Do they allways store DHW and not primary water?. Oil fired combis probably are all...
  5. C

    Hot water storage cylinder timer installation

    Hello, I have a few questions about my unvented hot water storage cylinder please: 1. How many kWh is each 3kWh element (day / night) supposed to use over a 7-hour period? I suppose the thermostat prevents them from running constantly? 2. Can a timer be installed on the element that runs at...
  6. L

    I have some storage heaters for sale

    Hi All, I have some storage heaters for sale. Never been used but some cosmetic damage. No bricks. Attached pictures of one. Can't find the stands & no right side bracket. Left side bracket is a little bent. Anyone interested? I know they're pretty expensive on google but someone offer me a...
  7. M

    Mass of gunge in cold water storage cistern.

    Hi all. Hope you are enjoying the sunshine and hope no one is working in lofts at mo. Anyone seen this gunk before in a cold water storage cistern?
  8. J

    Cold water storage tank setup

    Hi all, My mates recently bought a new old house and has had extensive work done including new bathrooms etc. We've got a few questions about the hot and cold water distribution. The house is supplied by cold water at around 3 bar, so decent enough pressure. The way it's set up at the moment...
  9. CanadianEh

    Advice Required: Tankless with Storage tank /with winter Hydronic use

    Here is what I have going on, and wondering if someone can help me solve the problem.. Quick details: I live in Canada so the cold ground water temp can be an issue in the winter. I had a Bradford white 75 gallon water tank that just gave up. This tank was used for my main home hot water...
  10. M

    Boiler with 1 year of use and 2 years of being idle in storage

    Hi all, A friend of mine gave me his gas boiler (24KW logic ideal) after only 1 year of use and it has since been sitting idle in storage for 2.5 years. I recently contacted a plumber to arrange having my current old boiler swapped with the boiler that has been in storage. The plumber warned me...
  11. M

    gas boiler has been idle in storage for 2 years, will it still work?

    Hi all, A friend of mine no longer needed a one year old condensing gas boiler so I took it off his hands and left it in storage for the last 2 years until I needed it. The time has come to replace my old boiler with the one that is in storage but when I was speaking with a plumber about...
    • malex83
    • Thread
    • boiler gas gas boiler still storage work years
    • Replies: 0
    • Forum: Central Heating Forum
  12. Y

    Cleaning Cold Water Storage Tank

    Hello. Decided to clean sediment from my cold water storage tank(just sediment nothing else is there). The pipe to the tank also splits off and feeds the hot water systems header tank(which also needs cleaned, but the boiler man can do that one). The water tank has 3 outlets. The overflow, one...
    • Youngpup
    • Thread
    • cleaning cold cold water cold water storage storage tank water water storage tank
    • Replies: 5
    • Forum: DIY Plumbing Forum
  13. K

    Hot water pressure- strange storage tank

    Hello. We have a system boiler in the kitchen filling what appears to be a two stage storage tank on the landing (under boiler pressure). There is no additional storage in the attic. Hot water from the shower bar is fine but all other hot taps are low pressure. Cold water pressure appears fine...
  14. N

    Water cylinder re heat time

    Hello all, i am doing work for a customer who has asked me what the reheat time of a 250 litre cylinder is. To be honest after all the years of doing plumbing this is a question that i have never been asked before because usually if you need a hot water cylinder then it is what it is, you just...
    • Nwalky
    • Thread
    • america cylinder heat hot water cylinder reheat storage time usa water
    • Replies: 7
    • Forum: USA
  15. C

    Leaking Cold water storage tank and overflow

    Hi there Hoping for some advice on a plumbing issue. Bit of background - currently I am not using my gas central heating system. The system is 20+ years old and kept breaking down and various plumbers visited and fixed problems but advised system flushes or a range of options - essentially the...
    • C Sbhan
    • Thread
    • america central heating system cold cold water cold water storage cold water tank leaking overflow overflow pipe overfowing storage tank usa water water storage tank
    • Replies: 6
    • Forum: USA
  16. L

    Shower pump feed from storage tank

    Hi guys, just a quicky. No real excuse but I was rushed and drilled the shower pump feed into the same side as the water inlet. Now as I've not done this before, do you guys think there will any issue with air? Thanks guys
    • Lsains
    • Thread
    • america pump shower shower pump storage tank usa
    • Replies: 2
    • Forum: USA
  17. T

    Are storage combi boilers better than a system boiler?

    We are currently looking to replace our 40 year old vented system to a system boiler. We have had a suggestion of getting a storage combi boiler instead of a vented boiler with cylinder. Space is not a problem. I am more than happy to replace both boiler and water cylinder. We have many options...
    • thecookhouse
    • Thread
    • america better boiler boilers combi storage system system boiler usa
    • Replies: 7
    • Forum: USA
  18. D

    Air lock from cold water storage tank

    Having problems with a recurring air lock in the cold water system which is tank fed. Every couple of months it dribbles out very slowly hot water. Not full flow but just a dribble. I use a wet vac to suck the air out every couple of months but it re occurs. Is it possible it’s due to a faulty...
    • DG1878
    • Thread
    • air air lock america cold cold water cold water storage storage tank usa water water storage tank
    • Replies: 2
    • Forum: USA
  19. T

    Recommendations for plug to avoid need to drain down storage tank

    The isolating valve on the tank outlet is sized so I'm looking for a tool or technique for plugging the tank outlet so the valve can be changed. I can feel that the bore of the fitting to be plugged is not smooth, appears to have 2 ridges! Advice and suggestions, please
    • Teka
    • Thread
    • america avoid drain drain down plug storage tank usa
    • Replies: 3
    • Forum: USA
  20. S

    Worcester Greenstar 8000 Style 50kW versus Viessmann Vitodens 111-W 35kW Storage Combination Boiler

    I would be grateful if I could have some details about both of these boilers. so I was thinking of a point system from 0-10 on the followings and any details you could share I would be most grateful. 1.Built quality 2.durability 3.customer service 4.ease of servicing 5.user interface I live in...
    • shaya88
    • Thread
    • boiler combination greenstar storage style viessmann vitodens worcester
    • Replies: 6
    • Forum: Central Heating Forum
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