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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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Connecting New Boilers to Old Pipes

  • Offshore price : $20000-$100000 Get a quote on the right form
  • Minimum order quantity : 1 set :Connecting New Boilers to Old Pipes
  • Supply Capacity : 10 units/month :Connecting New Boilers to Old Pipes
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

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Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


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  • Why change gas pipes from 15mm to 22mm? | DIY Doctor UK

    Jul 20, 2010 · I thought maybe that all new boilers (ours has got to be 15 years old) may only take 22mm pipes, but then why not leave the existing pipes in place and attached a 15/22mm adaptor at the boiler end instead of having all the floor boards up to replce the 8 or 9 metre's of pipe we have. Any advice appreciated. Thanks.Get Price


    2. Boiler circulator(s) must be rated for open loop applications. Do not use cast-iron circulators. 3. Boiler circulator(s) operate continuously. 4. The minimum pipe size for connecting to a water storage tank is 1 ½". 5. The minimum pipe size for connecting the boiler is 1 ½" for the Mod Con 300 VWH and 2" for the 500 and 850 models. 6.Get Price

  • Any boilers that can still use 15mm gas supply

    Apr 22, 2021 · But I can understand the OP wanting to avoid upping the pipe size if he can. The existing set-up most likely doesn't meet the 1mb but it's apparently been OK for 10 years. Depending on the pressure requirement of the new boiler vs the old, and whether the output is higher, it could be OK, if the 1mb is advisory only. That's why I was asking.Get Price

  • What Does Boiler Installation or Replacement Cost? | Hunker

    May 31, 2021 · It's normal to connect a new boiler to the existing pipes that bring hot water or steam to the existing radiators. However, if your system is quite old, it's possible that both the boiler pipes and the radiators will need to be replaced. You may also choose to do this simply because new, modern radiators are more stylish and more efficient.Get Price


    2. Boiler circulator(s) must be rated for open loop applications. Do not use cast-iron circulators. 3. Boiler circulator(s) operate continuously. 4. The minimum pipe size for connecting to a water storage tank is 1 ½". 5. The minimum pipe size for connecting the boiler is 1 ½" for the Mod Con 300 VWH and 2" for the 500 and 850 models. 6.Get Price

  • Single pipe heating system and new boiler. | Screwfix

    Jun 21, 2016 · The best best advice I will give, is rip the lot out & start from scratch. You can end up with so much hassle fitting a new boiler to scaled up old pipework, & flushing the system is never effective. Better to do the main heating runs in 22mm pipe, as much as you can, & the drops down to the radiators in 15mm.Get Price

  • Replacing a conventional boiler with a combi boiler: pipes

    If the new combi boiler will be in the same location as your existing one we have to consider and take in to account the following: 1. Can the cold & hot water feed be easily accessed to serve the new boiler? 2. Can the condensate pipe from the new boiler be discharged to a internal waste or external drain easily? 3. New boilers require at Get Price

  • Pipe sizing - a pitfall when upgrading your heating system

    Oct 27, 2019 · Pipe sizing is important when considering a radiator upgrade Every boiler and heating system uses a whole lot of pipes to perform its functions but not all pipes are equal. It makes sense that small pipes can only serve small radiators and so on but this can be easily overlooked in practice.Get Price

  • Boiler condensate pipe connection | DIYnot Forums

    Feb 22, 2020 · This new Intergas Xclusive 24 was to replace my old, apparently beyond economic repair, Potterton Promax Combi HE Plus. It looks as if that didn't need an air break or trap and so the narrower gauge white pipe would have run all the way between the boiler outlet and the vent stack. I think I might have a very vague memory of that.Get Price

  • Lessons Learned: Connecting New Boilers to Old Pipes

    Buy Lessons Learned: Connecting New Boilers to Old Pipes: Things You Should Know When Replacing Old Commercial Hydronic Boilers. by Ray Wohlfarth online at Alibris. We have new and used copies available, in 1 editions - starting at $21.57. Shop now.Get Price

  • Black Pipe on New Boiler Install -

    Dec 13, 2007 · The old boiler was a 20-yr old Hydrotherm Hydropulse B100 LP boiler. New boiler is on the wall, LP is piped to it, electric is run incorporating a low water kill sensor. Piping is 1" black pipe to/from the boiler. Goes off into 4 zones, each on 3/4 copper and driven by individual little UpStart-type circ motors. Fresh water is piped into it.Get Price


    single boiler installation lb-500, lb-750, lb-1000 • safety relief valve setting should not exceed pressure rating of any component in the system. • piping should conform to local codes. • ball valves are shown for service. however local codes shall govern their usage. • pipe relief valve to open drain. system notesGet Price

  • Combi Boiler install - need to run new gas pipes!? - Page

    Jun 22, 2017 · Just going through this myself. Had to have a new bigger gas pipe from front to back. Luckily most of the way was under floorboards, but the rest of the way through the old extension was concrete Get Price

  • Connecting PEX to Hydronic Steel System | Terry Love

    Oct 12, 2017 · It's a hot-water system with old cast-iron radiators fed by 1-inch galvanized pipe. The boiler is in the basement and has a circulator. It's set to 180 degrees with a return temperature of 160 degrees, and 15 PSI. There are already pipes up in the attic that used to connect to a leaky radiator, which I removed.Get Price

  • Lessons Learned: Connecting New Boilers to Old Pipes

    Connecting New Boilers to Old Pipes - heatinghelp.comGet Price

  • do i need new pipes with my new boiler- confused

    May 19, 2009 · The pipes may need to be re-run due to the location of the old boiler in relation to the new one. Runs into rooms and to single rads may be fine but its the main runs of pipework that may need altering. No. It is a requirement on new boilers now that the system is flushed before the boiler is fitted now. Not standard, not a requirement.Get Price

  • Making New Boilers Work with Old Systems - Xylem Applied

    Jan 15, 2015 · Volume 2 / Issue 1 / January 2015. There's an art to replacing an old steam boiler with a new, low-water-content boiler. You must manage the intricacies of connecting a boiler that holds less water, has a smaller steam separating chamber and makes steam more violently with pipes and radiators that may be 70 to 80 years old.Get Price

  • Earth bonding on a new boiler install | Electricians

    Sep 17, 2015 · I have just had a new boiler installed and was just wondering if the pipes need bonding under the boiler? I ask as my parents house has them but when i asked my plumber who installed it (a vaillant qualified installer) he said as long as the main pipe is bonded the rest do not.Get Price

  • Connecting New Boilers to Old Pipes -

    Connecting New Boilers to Old Pipes - heatinghelp.comGet Price

  • Lessons Learned: Connecting New Boilers …

    Aug 13, 2015 · Designing a commercial boiler replacement where you were not the original designer or installer might have some hidden dangers that could haunt you for years. Here are some tips when connecting new boilers to old pipes.Get Price

  • New_boiler_old_rads

    2) Isolate the new boiler from the old one-pipe system by connecting it via a plate heat exchanger. This will keep the boiler water separate from the potentially dirty radiator circuit water. Two pumps will be required, one to circulate the boiler water through the plate heat exchanger, and the second to circulate the radiator water through the Get Price

  • Tips for a Successful Steam Boiler Replacement | U.S

    Jun 14, 2018 · Place the boiler high enough. Make sure to place the boiler high enough to keep the new water level close to the old water level and pay attention to the "A" dimension measurement. Pipe the boiler according to the I&O manual. Use proper pipe sizing from the boiler size chart. The boiler header should slope slightly down.Get Price

  • Lessons Learned: Connecting New Boilers to Old Pipes

    Jul 04, 2014 · Lessons Learned: Connecting New Boilers to Old Pipes: Things you should know when replacing old commercial hydronic boilers. 214. by Ray Wohlfarth (0) Paperback $ 30.00. Ship This Item — Qualifies for Free Shipping Buy Online, …Get Price

  • New Boiler, New Radiators? The Pros & Cons Of Updating

    If you are considering installing a new energy efficient boiler, you won't maximise savings on your heating bill if it has to pump water through old, inefficient radiators and pipes. Whilst boilers are replaced every 10-15 years on average, radiators often get overlooked as they can't 'break down' as such, but they can underperform.Get Price

  • New condensing boiler to old piping — Heating Help: The Wall

    Mar 01, 2019 · this pic shows a primary/secondary loop to a Weil McLain low mass condensing boiler, one loop goes through the system, the second goes through the boiler, they connect at the T's and must be no more than 12" apart, in this way it's an injector loop and the boiler can gain temp while still feeding a MASS system with lots of water, otherwise you'd flush the boiler with …Get Price

  • Store | Lessons Learned: Connecting New Boilers to Old

    Jul 03, 2014 · Lessons Learned: Connecting New Boilers to Old Pipes: Things you should know when replacing old commercial hydronic boilers. (Volume 2) by Wohlfarth, Ray. List Price $27.11. Buy from Affiliate LinkGet Price

  • New Boiler Install - Is Power Flush Necessary

    Jan 06, 2017 · I am planning on getting a new Glow Worm boiler installed, to replace my old leaky boiler which is about 12 years old. I've been told that after installation of the Glow Worm, a Power Flush should be conducted and a magnet filter fitted. The reason given was that a 'dirty system' could invalidate the warranty on my new boiler.Get Price

  • New boiler installation - Why You May Need to Upgrade Your

    A lot of old open vented boilers and system boilers were fitted with a 15mm gas supply pipe as this was all they needed to heat the water via the hot water cylinder slowly over an hour or so. A combi boiler works differently, by heating the water instantly, meaning it needs a larger volume of gas for a shorter period.Get Price

  • Can I connect my new condensing boiler to a collective

    Create a new, suitable duct in addition to the existing chimney which everyone can gradually connect up to. This solution is not feasible in all cases, however. Adapt the existing chimney to accommodate two evacuation pipes: one suitable for the old boilers and the other for new ones. This solution is only conceivable if the existing duct is in Get Price

  • New Boiler Connection to Gas Meter | Screwfix Community Forum

    Dec 03, 2021 · The bottom of the tee connects to the 22mm pipe from the new boiler. The horizontal connection (centre connection) of the tee connects to the original steel pipe that leads to the AGA in the kitchen. I have compared this arrangement to that in my own property and found that there is a difference.Get Price

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