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200-w

The .38 S&W, also commonly known as .38 S&W Short (it is sometimes referred to as .38 S&W Short to differentiate it from .38 Long Colt and .38 Special), 9×20mmR, or .38/200, is a revolver cartridge developed by Smith & Wesson in 1877. Versions of the cartridge were the standard revolver cartridges of the British military from 1922 to 1963. Though similar in name, it is not interchangeable with the later .38 Special due to a different case shape and slightly larger bullet diameter.

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  1. M

    Viessmann 200-w B2HA-35. CH flow pipe hot when only demand for DHW

    Hi, Hopefully someone can throw some light on if this is a real issue or not. I have had this boiler for about 10 years, I noticed just recently that when the CH has been turned off that a couple of the rads closest to the boiler were slightly warm. When the boiler had demand to heat the DHW I...
  2. S

    Viessmann Vitoden 200-W vs Worcester 36CDI

    Looking for a bit of advice on which one of these two to get, or any other similar suggestions? Just moved into an old Victorian property and we are replacing the boiler. Considering efficiency and reliability which one should I go for? Many thanks
  3. K

    Viessmann Vitodens 200-W B2HA heating issue

    Hello! I have a large house, 20 radiators + UFH. Heated house area is about 350 m2. House is class B, it is written in the certificate that house requires 73 kWh(m2/year) for heating. I had my system fully upgraded last year, installed new Vitodens 200-W 49 kW (B2HA) model with Vitotronic 200...
  4. E

    Vitodens 200-W Combi WB2B Steppermotor does not move

    Hi, My combi-boiler has just given up heating the house and basically only delivers hot water. While in central heating mode it heats up and stops to prevent overheating of the internal section of system. No fault or error code are displayed. Suspicion: 3-way changeover valve assy. So I...
  5. G

    Viessmann Vitodens 200-W - no warranty??

    We have recently had a Viessmann Vitodens 200-W boiler fitted, and let me start out by saying that it is a superb piece of engineering... apart from bleeding a few radiators and tweaking the settings, no issues whatsoever. Except...! I received an e-mail from Viessmann, asking me if we wanted...
  6. S

    Viessmann 200-W Combi 35kw (New 2019 version) Installed - Advice?

    Evening All, Hoping some plumbing/heating engineers/other knowledgable folk on here might be able to assist with some questions about my new boiler. We had the new Viessmann 200-W 35kw Combi installed this week by a Viessmann registered local heating engineer. It's the new 2019 version with...
  7. C

    Viessmann Vitodens 200-W Problems

    I have two Vitodens 200-W system boilers connected via a low loss header. They are about 7 years old and have run perfectly since they were first installed until now. They were installed as part of a whole house re-plumb and have had Fernox MB-1 Heating Protector in the circuit since day one...
  8. 3

    Viessmann 200-W menus

    Viessmann boiler control has two levels of parameters that can be set, level 1 and level 2, but level 2 seems to be almost identical to level 1. What is the purpose of the level2 control options?
  9. bright spark

    Problems with Viessmann vitodens 200-W pcbs

    Don't know if any1 else is having any problems with these. Service a few of these around a few schools, offices etc. one site about 3 years old has 2 of them. First boiler, PCB went faulty in October. Replaced, all fine. The PCB in the other boiler has now gone. Now these are pretty expensive...
  10. M

    Viessmann vitodens 200-w. hot water icon dissapeared

    Hi, a client of mine has a viessmann vitodens 200-w system boiler. I have come to the job after 2 previous bodge job builders, so im now there to pick up the pieces. I have managed to fix all the problems but one... The system has a 2 port valve for the hot water in a megaflo, and 3 2-port...
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