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Worcester ( (listen) WUUS-tər) is a city in, and county seat of, Worcester County, Massachusetts, United States. Named after Worcester, Worcestershire, England, as of the 2020 Census the city's population was 206,518, making it the second-most populous city in New England after Boston. Worcester is approximately 40 miles (64 km) west of Boston, 50 miles (80 km) east of Springfield and 40 miles (64 km) north-northwest of Providence. Due to its location near the geographic center of Massachusetts, Worcester is known as the "Heart of the Commonwealth;" a heart is the official symbol of the city.
Worcester developed as an industrial city in the 19th century due to the Blackstone Canal and rail transport, producing machinery, textiles and wire. Large numbers of European immigrants made up the city's growing population. However, the city's manufacturing base waned following World War II. Long-term economic and population decline was not reversed until the 1990s, when higher education, medicine, biotechnology, and new immigrants started to make their mark. The city's population has grown by 28% since 1980, reaching a new all-time high in the 2020 census and experiencing urban renewal.
Modern Worcester is known for its diversity and large immigrant population, with significant communities of Vietnamese, Brazilians, Albanians, Puerto Ricans, Ghanaians, Dominicans, and others. 22% of Worcester's population was born outside the United States. A center of higher education, it is home to eight separate colleges and universities, including Holy Cross, Worcester Polytechnic Institute (WPI), and Clark University. Architecturally, Worcester is notable for its large number of 19th century triple-decker houses, Victorian-era mill architecture, and lunch car diners such as Miss Worcester.
Worcester is the principal city of Central Massachusetts, and is a regional government, employment and transportation hub. Since the 1970s, and especially after the construction of Route 146 and interstates 90, 495, 190, 290, and 395, both Worcester and its surrounding towns have become increasingly integrated with Boston's suburbs. The Worcester region now marks the western periphery of the Boston-Worcester-Providence (MA-RI-NH) U.S. Census Combined Statistical Area (CSA), or Greater Boston.

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  1. grumpydad

    Baxi 836 Vs Worcester Bosch 8000 35kw

    Hi all. My glowworm e50 has seen better days. Situation = 4 bedroom detached house, header tanks in the loft, all the rads are singles, they are all the originals from 1996. No TRVS. Some are rusted on the bottoms. Vented heat only. Essentially, it's time to spend some money. Got two...
  2. M

    Worcester compact service tool

    Hi all. Got a few of these boilers coming up to 4yrs old and want to know if anyone has used something other than the recommended service tool which costs £57?
  3. Geraint Thomas

    Worcester boiler pump runs for hours

    Hi all, We've bought a property that has a Worcester Greenstar 37CDi boiler installed, with an old British Gas RS2 Thermostat linked to it. I'm not clued up on boilers in any way, though I'm quite handy with mechanics and always like to learn how things work. The problem: The internal Bosch...
  4. W

    Worcester Junior 28i Faulty PCB Board

    I need some help with a Worcester Junior 28i gas boiler and I'm hoping someone here may have came across this fault before ... I have checked the following: 240v at supply connections All internal push on connections are correctly fitted to the PCB board The transformer is giving the correct...
  5. Jpm757

    Worcester Bosch Cycling Issue

    Good afternoon everyone, I am hoping you may be able to help me. I have a Worcester Bosch 19/24CBI boiler and it keeps cycling. When trying to heat the hot water (same for heating) the boiler is off more than it is on and thus unless timed for a very long time never gets the desired outcome. In...
  6. J

    Drain down a Worcester Hi-Flow 550cdi boiler

    Hi, I have the boiler as above which has been very good for the last 13 years or more and is still relatively going strong. However, now, the secondary heat exchanger is kettling and the easiest option is to replace it. Although Worcester Bosch do sell a cleaning kit, whatever route I take, I'll...
  7. J

    Worcester GreenStar 15Ri - fails with blue flashing light

    Condensing boiler installed by local Gas Safe plumber in 2014, not combi. Failed a couple of weeks ago with flashing blue light which googling suggests means no gas, blocked flue or blocked condensate pipe. There is gas, the flue is clear, and the condensate pipe goes into the under-sink waste...
  8. Q

    Worcester MT10RF mechanical rf thermostat is broken all cogs fell out

    Hi I have a Worcester MT10RF mechanical rf thermostat and it is broken dropped and all cogs dislodged leaving me confused how they put together. I have sat there for 3 hours straight working it out and still can't get it together even left with a orange peace that I have no clue were it goes...
  9. M

    Greenstar CDI, Pressure loss, not HE

    I am a retired gas engineer. Corgi and Domestic Electrics + Building Surveyor. I have a Greenstar CDI 35kw that I fitted in my own home 15 years ago, serviced regularly, no issues till now. Suddenly its losing full pressure in approx 2 hours. I have concrete floors with buried copper pipe but...
  10. I

    Which Worcester Greenstar boiler to choose ?

    I presently have a Greenstar 24i junior installed, it's probably about 12 years old and getting cranky, the engineer suggested upgrading it to a 30 model sometime, but he just realised that the gas pipes would need changing (from 15mm to 22mm). My question is, which model would you suggest...
  11. N

    Worcester 28cdi ii - Hot water problem.

    Hi All, I wonder if anyone could give me some advice regarding a Worcester 28cdi ii , I get hot water only at certain times when the central heating is on and even then the hot water is in short supply, there is a tank next to the boiler. Is there a way of having hot water all time when needed...
  12. G

    Boiler options - Ideal, Worcester Bosh, or Viessmann?

    Evening Hopefully you're not sick of this type of question! I've had a few quotes for a boiler upgrade (going from a regular boiler (~15 yrs old, on its last legs) to a combi) - all recommending different brand/model of boiler, and all company's are saying that their recommendation is the best...
  13. L

    Worcester Bosch FS 30 CDI not coming on demand for heat

    HI All, Weird problem with an FS30 CDI, The boiler does not come on when demand for heat (LR terminal) is on, but I can turn it on manually via the service menu. Heating controls all seem fine, but anyone seen an issue before where it doesn't seem to register the demand for heat and just stays...
  14. B

    Worcester Bosch Greenstar 24i Pump Speed

    Can anyone tell me if the greenstar 24i circulating pump modulates? i have been looking at param 2.1c which references settings 0 to 4, i know the factory default setting is 4 (constant high pressure) which to me implies that it would not modulate on this setting, does it need to be setting 0 to...
  15. F

    Worcester Oil Boiler Trouble

    Hi All, I have a Worcester Danesmoor 20/25 oil boiler which is causing me lots of heartache and grief. About 3 months ago it locked out and wouldn't fire up when reset so I called out the local (but recently retired) engineer to see what he thought. He thought it was the pump so he serviced the...
  16. R

    Worcester Heatslave humming

    Heatslave 20/25 subtle humming from boiler new motor fitted fully serviced recently, it's the sort of sound you would get from a HV transformer that sort of hum deep and annoying, nothing to do with circulation pump it's still there with the circulation pump off. I guess it only leaves the oil...
  17. P

    Worcester boiler makes intermittent rumbling noises

    Our boiler makes these very loud rumbling noises every 2-3 minutes. We're quite used to them now but they have become a lot more regular over the past year or so (it only used to happen once every half an hour or so) and they can be quite annoying. Our boiler is a Worcester Greenstar 24I Junior...
  18. J

    Worcester grecnstar - changing the plate

    Hi all, I'm due to change my first plate on a Worcester Greenstar next week (not looking forward to it). I found this on Youtube. Is it really as easy as this guy says? And what about checking/replacing the O-rings? Any tips most welcome. Thanks Jennie
  19. D

    Worcester greenstar heatslave ii central heating problem

    Hi I have an oil worcester bosch greenstar heatslave ii combi boiler. It's about 5 years old. The problem I have is when the thermostat calls for the central heating to come on. Most of the time the boiler light will come on, the boiler might fire up for a couple of seconds then the light will...
  20. moonlight

    Worcester Bosch Fault code P3

    A customer rang this morning, says they have a intermittent fault on the boiler P3. Its a Worcester CDI30 I think from a past visit. I did quote for a new boiler 10 months ago, but the old one is still hanging in there. I looked on line as I don't have the book with me. Any suggestions? He says...