Press the left button, drag the mouse, rotate the cube, see more information

Limit Discounts

Through this webpage, choose online customer service communication, or message board. Leave your needs and get limited time discounts, up to 10% off, saving you a fortune. This discount has an indefinite period, and places are limited on a first-come, first-served basis.

Payment Method

We support various payment methods:
T/T payment
Alipay etc
Save time in your buying process.

Certified Product

The company's products have passed multiple national
for example:
United States: ASME
Eastern Europe: EAC
Russia: GOST
Singapore: MOMO
Buy products, buy with confidence, use with confidence

Product Type

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

About Us

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!

Contact Us

If you are interested in our company or products, you can contact with us through online consulting, demand table submission, e-mails and telephones. Our staff shall wholeheartedly provide product information, application knowledge and good service for you.

My gas boiler sometimes is burning inside the tube on one

  • Offshore price : $20000-$100000 Get a quote on the right form
  • Minimum order quantity : 1 set :My gas boiler sometimes is burning inside the tube on one
  • Supply Capacity : 10 units/month :My gas boiler sometimes is burning inside the tube on one
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

Leave Your Message And Get Price!

I need the quotation of , the fuel is , this capacity is , use for . My Name is , my Email is , my WhatsApp is , Please Send the detail information for me!

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


Leave us a message

We will send out plans and quotations within five minutes

Name (optional)



Choose product type



Get display discount

Contact us

Global Sales Hotline:

Email: [email protected]

  • Top 10 Most Common Boiler Problems | Boiler Guide

    Flames inside the burner rack (s) is almost always insufficient gas pressure - or if adjustable, improper air to fuel ratio. If non-adjustable air; the gas presure is probably too low. To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Contractor". 0. Unknown.Get Price

  • Boiler | Engineering | Fandom

    For example, steam locomotives have fire-tube boilers, where the fire is inside the tube and the water on the outside. These usually take the form of a set of straight tubes passing through the boiler through which hot gas flows. In a cast iron sectional boiler, sometimes called a "pork chop boiler" the water is contained inside cast iron sections.Get Price

  • Slant/Fin V-120-EP combustion inside tubes - DoItYourself

    Jan 28, 2015 · Slant/Fin V-120-EP combustion inside tubes. Earlier last fall my parents boiler was not lighting reliably and we tracked it down to a dirty orifice. Things were going smoothly, and we thought it was smooth sailing. lol. So now it is intermittently burning inside the tubes. It effects 2 or 3 of the 7 tubes.Get Price

  • FAQ - Laars Boilers Guide

    My newly bought and installed Laars mighty boiler is facing a strange issue nowadays. The pilot of the boiler is blown out once burner shut off. It seems to happen only when the burner does not light up properly. Furthermore, it is as if a flame is directly inside the tubes of a burner, instead of burning outside generating a shrill noise.Get Price

  • Rare look inside a Rheem water heater! - Oconomowoc Plumbing

    One thing to keep in mind is that many new water heaters come with plastic boiler drains to save on cost. Plastic boiler drains do break, and when they break it's very hard to retrieve and repair it properly. Below is a close up shot of the sediment built up at the bottom of the water heater. This is the last photo of the inside of the water Get Price

  • What Are the Causes of Flame Rollout in a Gas Boiler

    What Are the Causes of Flame Rollout in a Gas Boiler?. Flame rollout is a term used to describe the condition or situation in which combustion takes place outside the …Get Price


    Dec 09, 2017 · If you cleaned the burners thoroughly this could be due to inadequate manifold gas pressure. You'll need a gauge that reads in inches WC. Most manifolds have a test plug for the gauge or there's one near the gas valve outlet. Could also be caused by a tube that's out of adjustment if it has an air shutter.Get Price

  • FLAME BURNING IN BURNER TUBE - Heating Help: The Wall

    Top 10 Most Common Boiler Problems | Boiler GuideGet Price

  • Boiler Efficiency and Combustion - Spirax Sarco

    A reasonably well-insulated shell or water-tube boiler of 5 MW or more will lose between 0.3 and 0.5% of its energy to the surroundings. This may not appear to be a large amount, but it must be remembered that this is 0.3 to 0.5% of the boiler's full-load rating, and this loss will remain constant, even if the boiler is not exporting steam to Get Price

  • Water Tube Boiler Parts and Functions - Boilersinfo

    Jul 25, 2017 · We briefly discuss about Water tube boiler parts and functions. D type water tube boiler. In the water tube boiler, the water and steam flow inside the tubes and the hot gases flow over the outside surfaces. Where as in fire tube boilers hot gases from combustion travels through the tubes. flue gases produced from furnace where fuel is burnt.Get Price

  • Troubleshooting A Furnace Gas Valve That Is Not Opening

    Sep 12, 2021 · Furnace gas valves are only present on gas-fueled forced air furnaces and gas-powered boiler systems. However, some gas-powered hot water systems and fireplaces also have gas valves. How Does a Gas Valve Work? The gas furnace valve operates by electromagnetics. It comprises two valves positioned in series, one after the other.Get Price

  • How to perform an emergency shutdown on an exhaust gas

    Answer (1 of 4): I guess you are talking about an exhaust gas boiler/economiser soot fire on a ship? If so, you should mention Marine Engineering in the title to avoid getting household boiler comments. There are two kinds of economiser, as there are two kinds of boiler in …Get Price

  • Why Does My Boiler Make A Banging Noise When - …

    The most common cause of a leaking boiler is a broken internal component, such as a pump seal or pressure valve. If the leak is coming from the pressure valve it could be the case that the boiler pressure is too high. Meanwhile, a leak from the pump …Get Price

  • What is boiler blowback? -

    Feb 08, 2020 · What is boiler blow back ? It occurs when lighting up with explosive gas and oil droplet (Oil residue) inside the furnace without pre-purging sufficiently. The ignition results in a large flue gas inside the furnace and these gases blow out with increase high pressure through the furnace opening.Get Price

  • Occassional slight smell of gas with boiler

    Jan 17, 2013 · I'm not qualified in any way to give advice but, at a guess, that could be a small amount of gas escaping from the pilot light before it ignites. Similarly you can sometimes smell a trace of gas when you turn on a ring on a gas hob and press the ignition or light it with a match etc. You are wise to mention it whenever the boiler is serviced. 0.Get Price

  • Top 10 Most Common Boiler Problems - Vaillant

    One of the most common boiler issues is a boiler leak. Leaks can be a nuisance because not only can they cause water damage to a home, but water can also cause electrical components in and around the boiler to malfunction. A leaking boiler can be due to a number of things: Excessive boiler pressure. Corroded pipes or tanks.Get Price

  • Should I replace my 53-year old Burnham gas boiler

    May 03, 2021 · Recently moved into a house built in 1967 that has its original Burnham gas boiler. Although it has been regularly maintained when I read that boilers are good for 15-30 years MAXIMUM I thought it would be wise to replace it before next Winter (it gets cold her in Eastern PA and can't imagine what would happen if the boiler failed midway through winter with 10-20 …Get Price

  • My gas boiler sometimes is burning inside the tube on one

    Why Does My Boiler Make A Banging Noise When Firing Up Get Price

  • Adjusting gas boiler flame - Ask Me Help Desk

    Jan 12, 2012 · Flame on Vailiant Boiler (propane) [ 1 Answers ] The flame (propane) on our 10 yr old Valiant boiler I(Has 3 zones) is sometimes burning yellow not blue. There are two burners. Each burner has a long grated area inside through which the fuel is burned. The flame looks correct most of the time but occasionally The blue flame occurs in the tubeGet Price

  • Troubleshooting a Gas-Fired Hot Water Boiler

    GAS BOILER WITH ISSUES NOT FIRINGmerch = productions llcsubscribeGet Price

  • Gas Boilers Guide | All You Need to Know | Ideal Heating

    Hot Water. The second job of the gas boiler is to heat water. It performs this task in the same way as it does for central heating, that is, through pumping circulated water over the flame so it heats up. There are two ways it does this: 1. Instant hot water as in the case of the combi boiler. 2.Get Price

  • Chapter 2 Boiler 101: typical NYC residential heating system

    the heat exchanger, the water inside absorbs heat. The hot water is pumped to the baseboard heaters/radiators to release its stored heat before returning to the heat exchanger to repeat the process. This is called the boiler water loop, since it is a circular system. For a natural gas-fired hot water boiler, almost all of the components are the Get Price

  • How to Destroy a Boiler -- Part 1

    Boilers rely on the water to protect the steel boiler tubes from the temperatures in the furnace which greatly exceed the melting point of the tube material. A buildup of deposits inside the tubes will produce an insulating layer which inhibits the ability of the water to …Get Price

  • How to Destroy a Boiler -- Part 1

    Boilers rely on the water to protect the steel boiler tubes from the temperatures in the furnace which greatly exceed the melting point of the tube material. A buildup of deposits inside the tubes will produce an insulating layer which inhibits the ability of the water to …Get Price

  • Boiler Leaking Water From The Overflow Pipe? (Fix It Now

    A boiler system is an appliance that is often confused with boiling water. The confusion came from the past term when boiling water is turned into steam from boilers. Today's boiler systems operate on natural gas or electricity and are water heaters made to heat the home. The boiler system heats the water from 145-190 degrees.Get Price

  • 5 Common Boiler Problems & How To Easily Fix Them!

    Oct 15, 2021 · My Boiler Will Not Apply Central Heating. If your boiler is still heating water but not switching on the central heating, check your thermostat. Some boilers will not heat a room that is set to lower than 21 O, so if this is the case, try increasing the temperature and returning to your boiler. If this does not work, check the settings on your Get Price

  • What are water tube boilers? Write down their working

    Answer: A watertube boiler has tubes filled with water which are surrounded and heated by hot gases. The working principle of water tube boiler is thermal siphoning (circulation of natural water). Basically, this type of boiler includes two drums namely steam, lower or …Get Price

  • Boilers - University of Alabama

    Fire-Tube Boiler (~1800) The fire tube boiler, the oldest design, is made so the products of combustion pass through tubes surrounded by water in a shell. The furnace/flame volume can either be inside or external to the shell that contains the water. The upper steam capacity of fire tube boilers is about 20,000 Ibm/hr, and the peak pressureGet Price

  • Common Boiler Problems | Boiler Faults & Troubleshooting

    Common Boiler Problems: Causes and Quick Fixes . While we always recommend calling a trained engineer to help with boiler problems, many technicians charge by the hour. Considering this, if you are able to diagnose the issue and take a few preliminary steps before you book a repair, you could save the engineers time and cut the cost of your Get Price

  • Furnace Fires, then Flame Comes Out Of The Burner Tube. Why?

    What to do: Have a professional examine your furnace as soon as possible. If ignored, the intensity of the flames caused by the gas buildup can eventually cause your boiler's heat exchanger to crack (easily a $1,200+ repair). Beyond being expensive, a cracked heat exchanger can also lead to carbon monoxide poisoning.Get Price

7X24 Online