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boiler hot and cold water

About Us

Zozen Boiler main products include gas&oil boiler, coal-fired boiler, biomass boiler, thermal fluid heater and other series of more than 400 varieties of specifications.
Contact us for Email:[email protected]

Our Main Product

our main boilers
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1-20 ton gas/oil fired boiler

Price: $1-$99999/set

Capacity: 1-20 ton/h

Pressure: 0.7-2 Mpa

Fuel: Nature gas, coke oven gas, biogas, methanol, liquid propane gas, diesel, heavy oil, light oil, crude oil, etc.

Industries: Heat supplying, chemical, food, textile, printing and dyeing, cigarettes and tobacco, fodder, pharmacy, building materials, brewery, rubber, hospital etc.

szs boiler picture

7-70 MW gas/oil fired hot water boiler

Price: $1-$999999/set

Capacity: 7-70 MW

Pressure: 1.0-1.6 Mpa

Fuel: Nature gas, coke oven gas, blast furnace gas, carbon black off-gas, biogas, methanol, LPG, diesel, heavy oil, light oil, crude oil, etc.

Industries: Heat supplying, hospital, colleges and universities.

szl boiler picture

2.8-29mw coal fired boiler

Price: $1-$999999/set

Capacity: 2.8-29mw

Pressure: 1.0-1.25 Mpa

Fuel: Bituminous coal, lean coal, anthracite

Industries: Heating, hotels, schools, hospitals

yyw boiler picture

horizontal thermal fluid heater

Price: $1-$99999/set

Capacity: 700 - 14000 kw

Pressure: 0.8 - 1.0 Mpa

Fuel: natural gas, coke oven gas, bio-gas,liquid propane gas, diesel, heavy oil, light oil, crude oil

Industries: Petroleum, chemical, chemical fiber, pharmaceutical, textile printing and dyeing, building materials, wood processing, vegetable oil processing and other industries

dzl boiler picture

1-20 ton biomass fired boiler

Price: $1-$999999/set

Capacity: 1-20 ton/h

Pressure: 0.7-2.5 Mpa

Fuel: Biomass particles

Industries: Heating, chemical, food, tobacco, textile, printing and dyeing, feed, medicine, building material, wine, rubber, hospital

Hot Water is Cold With A Combi Boiler ? | DHS Heating Bristol

Combi boiler help please, running hot then cold

Combi boiler help please, running hot then cold . reasons why the water can run hot and cold , it might be worth trying the 'diynot' site too.

Hot Water is Cold With A Combi Boiler ? | DHS Heating Bristol

27 Mar 2017 However, combi boilers are prone to the common problem of causing the hot water to go cold or lukewarm and then back to hot again. Symptoms like these are usually signs of a blockage in the hot water heat exchanger in the boiler .

Boiler problem - alternating hot and cold water | RTG Sunderland

9 Jan 2014 I've been having an issue with my hot water for a couple of weeks now- it comes out hot for about 2-3 mins and then goes cold for 2-3 mins, 

Hot water cycling between hot and cold | - Mumsnet

Our hot water is cycling between hot and cold - does anyone know what might be wrong? I should have mentioned that a plumber was fiddling with the boiler

Boiler hot water keeps going cold - YouTube

14 Apr 2015 - 58 sec - Uploaded by Bob Timmons Boiler hit water keeps going cold . Boiler hot water keeps going cold . Bob Timmons

Hot water is getting hot and cold - cannot take shower - YouTube

9 Aug 2014 - 49 sec - Uploaded by unicuk We all know what is the problem so I am not going to tell you this but I will give you a clue. it's

How to get hotter water from your Combi boiler - YouTube

2 Mar 2017 - 5 min - Uploaded by dereton33 Do you you need hotter water from your Combi boiler , especially on the If you are washing up

No Hot Water from Taps or Shower - Troubleshooting - VHL

10 Jun 2015 If you find yourself without hot water in your taps or shower, you'll want to . If your boiler is used quite a lot and there is a lot of cold water going 

Worcester 24i junior producing very hot then cold water cycles

27 Aug 2016 There are Gas Safe engineers who's field of work may not extend to boiler breakdowns as this is a specialised item, even though you state he is 

Should hot or cold water enter the boiler Heating Help: The Wall

22 Jan 2015 A plumber told me it was because I had cold water entering the boiler and if it was hot water it would bring the steam on much more quickly, he says if I change

Boiler problem - water running hot then goes cold Digital Spy

When I go to run the hot water , it heats up but when the boiler shuts off the flame and never kicks back on again so the water then goes cold .

water gets hot then goes cold , help please. | DIYnot Forums

hi, i have a vokera linea24 combi boiler , its about 4 maybe 5 years old. my problem is the water !! the heating seems fine but the water keeps 

Hot Water Going Cold With A Combi Boiler | DIYnot Forums

Hi All Have a Worcester GreenStar 28i Junior. Hot water goes cold or lukewarm and then back to hot again. This happens on bath mixer tap as 

Kitchen tap hot water going cold | Screwfix Community Forum

4 Aug 2017 Hey folks, about 7-8 months ago we had our faulty combi boiler changed, from a Valiant Ecomax 828/2e to a Worcester Greenstar 30i ErP.

Problem: new combi boiler hot water temperature fluctuation

15 Feb 2015 The boiler holds a head of hot water when you open the tap or shower this hot water is pushed out by the cold mains pressure. The boiler will 

My boiler is working but I have no hot water - 24|7 Home Rescue

Low flow rates are a common problem, especially in cold weather, and may lead you to think your hot water is not working. The boiler will still be operational; 

Shower runs hot , then cold , then hot . - Plumbing resolved | Ask

My shower runs hot , then cold, then hot again under certain circumstances. The cold water is fresh cold water pulled through before the boiler

Boiler Pulsing hot and cold - Page 1 - Homes, Gardens and DIY

When I am in the shower , it will get hot water for 30 seconds, then it will go cold for 10, and then start heating up again. It doesn't seem to do this 

Boilers Explained | Worcester, Bosch Group

Combi boilers heat water directly from the mains when you turn on a tap, so you won't need a hot water storage cylinder or a cold water storage tank in the roof 

Combi Boilers - TheGreenAge

Combi boilers provide central heating and hot water without the need for a hot water cylinder in an airing cupboard or a cold water tank in the loft. The combi 

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