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The hot water in my flat is supplied by a communial boiler. Recently, the water in the cylinder was not heating the water as efficiently as it should; the pipe flow from the boiler is very hot, the cylinder is tepid and so it the pipe returning to the boiler. I called out a plumber who thinks the problem is with the return valve being stuck. If the return valve is set to open how and why would being stuck stop the water passing throught?

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Hello my name is Heath it will be my pleasure to assist you. If the valve is built up with calcium and other water sediments it may seem like the valve is open with very minimal water flowing through the valve Have them replace the vvalve.

Posted on Oct 10, 2010

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Posted on Jan 02, 2017

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What is the best boiler for heating and hot water in Europe for a flat?


I would suggest the Wilford boiler is a great option. In particular, the Zhangjiagang Wilford Boiler as it is a combination boiler meaning it is small, can easily be stored in a cupboard and is economical to run. Get in touch with them to see if it is ideal for you.This brand of pressure hot water boiler is the best choice of transforming of the heating boiler of coal-fired. The horizontal structure of the boiler can absorb the heat with high efficiency ,heat transfer fully, the efficiency of heat transfer can reach 98%, and with good quality of steam, not pollution, no noise ,is the real green and environmental protection product. you can go its website for more
Hot Water Boiler Hot Water Boiler Products Hot Water Boiler Manufacturers...

May 08, 2017 | Miscellaneous

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Gas Boiler Condensing Best Features


Condensing boilers are the most efficient way to heat that there is today. The BTU’s that they wring out of the fuel put into them is the best of anything available today. Not only do they burn their fuel very well, they also have technologies built into them to help give then the highest efficiency possible on any given day.

Condensing gas boilers have been on the market for about twenty years now. The early boilers were noisy and very heavy. Today’s condensing boilers are not even remotely the same as their predecessors. There have been many improvements that make these boilers lighter, safer, and more reliable than ever.

Many of today’s condensing gas boilers are controlled by a computerized control that gives many options and features to customize your boiler to the type of system that it is being installed in. Not only does the control monitor the boiler, but it can be setup to control the whole heating system as well. This gives the added benefit of fewer controls and the saving of space. Circulator pumps, mixing controls, and injection pumps can all be controlled by the boiler control.

These technologies are things like sensors to make sure that they are running at the highest combustion efficiency possible or they will shut down. Outdoor reset controls will vary the water temperatures to make sure that the water temperature is only being heated as hot as is needed to make your house warm at any given outdoor temperature.
Sensors also monitor the supply and return water temperatures constantly to shut down the boiler if the boiler senses any unsafe conditions.
These boilers are so good that even if you fire the boiler before filling it with water, the boiler will shut off before it is damaged.

When looking at the boilers on the market today take into consideration all of the benefits of that the newer high efficiency boiler have to offer. High efficiency is really great, but there is so much more to them. The ease of installation because of the light weight of new condensing technology, the versatility of the controls that are incorporated into these boilers, and the outdoor reset technology that will save you fuel and make you much more comfortable.

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http://www.fixya.com/support/r3597748-the_extra_benefit_of_a_modulating_boiler

on Dec 24, 2009 | Heating & Cooling

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Gas Condensing Boiler High Efficiency Heating



Ultra high efficiency boilers have become one of the best buys in home heating. These high efficiency boilers have changed dramatically from the first pulse boilers that I had the privilege of installing twenty years ago. Today’s condensing boilers are much more reliable and will not shake and rattle the windows of your house like those old beasts did.

If you are looking to purchase or install a new boiler for your new or existing heating system then you need to look a condensing boiler to heat your home with. In the past twenty years the condensing gas boiler has evolved to be a reliable, very efficient way to heat your home.

Radiant heating systems with the right design feature can easily heat your home at temperatures that use just warm water. At these temperatures the water is pulling the exhaust temperature of the boiler to very low points. This gives you extremely efficient boiler operation.
The boilers of today are made to operate continually at temperatures of 100F or less. At these temperatures it is not uncommon to have the combustion analyzer give me readings of 98-99 % efficiency. To get these types of readings and still heat your home the heating system has to be designed to work at these temperatures.

The right condensing gas boiler coupled with the right heat transfer system to get the heat into your home the right way will give you the most efficient heating system possible with today’s technologies.

Do a bit of research and find a heating contractor that knows exactly how to install a condensing boiler with a radiant heating system properly. For your radiant heating system to perform well at these temperatures, your boiler will need to be installed in exactly the right way. There is not a lot of room for error when designing very high efficiency heating systems. To wring every BTU of heat out of the fuel that is being burnt means that you are also on the ragged edge of supplying just enough heat to the building to over come the heat loss of the building at any given time.
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http://www.fixya.com/support/r3597748-the_extra_benefit_of_a_modulating_boiler

http://www.fixya.com/support/r3583943-condensing_gas_boilers__the_best_radiant

on Dec 24, 2009 | Heating & Cooling

1 Answer

My central heating turns off when i turn the hot water tap on. when i turn it off the central heating doesn't come back back on until i turn the power off and on.


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singletrackworld.com/.../combi-boiler-turn-hot-water-tap-onoff-and-the-...
Combi-boiler-turn hot water tap on/off and the heating stops for 20secs ... hot watertakes priority over central heating so when you run the hot tap, heating is ... Yeah onmy worcester combi there is a diverter valve - it feeds either the heating or ...

My central heating works but I have no hot water - 24'7 ...

https://www.247homerescue.co.uk/my-central-heating-works-but-i-have-...
Diverter valves switch heat between the hot water and the central heating. When youturn your hot tap on, the diverter valve temporarily shuts off the water supply ...

Does your boiler keep switching itself off? Here's why ...

www.dhs-uk.com/does-your-boiler-keep-switching-itself-off-heres-why/
Jul 7, 2015 - ... Bathroom Suites, - Showers, - Wet Rooms, - Taps and Accessories, Information and ... Low water pressure can cause your boiler to turn itself off. ... boiler is not turning off, you aren't getting the amount of hot water you require. ... If there is air in your central heating system, then your boiler may shut down.

Feb 09, 2016 | Water Water Heaters

1 Answer

Puma 80 potterton hot water on and off


Boiler compartment ventilation will not stop you getting hot water . Its sounds like you have problems with a sensor or the water section on the boiler .

Apr 20, 2017 | Water Heaters

Tip

The extra benefit of a Modulating Boiler


You're looking to install a new hot water boiler or replace your existing boiler. You come across something called a "modulating" boiler. You wonder what on earth that means. I will attempt to explain some of the features of a modulating boiler.

How nice would it be if you could have your boiler make just enough heat to keep your house warm and nothing more? Your thermostat tells your boiler that you need heat in the house. The boiler starts up and heats the water that runs through the pipes to heat your house. The water does not heat up to temperatures that are more than just warm. But you notice that the temperature in your house is staying right where you want it to be.
This boiler is no ordinary boiler. It knows what the temperature is outside and varies your water temperature to make just the heat needed to keep you comfortable. The modulating boiler also runs much more then a normal boiler would but you can see by your gas bill that you are getting great efficiency from this thing.

The feature that makes this wonder so great is that it has the ability to vary the fire that heats the water up and down so that the water temperature stays precisely where the computer brain in the boiler wants it to be. This temperature is figured by measuring the outdoor temperature and changing the water temperature based on that. The colder the weather is outside, the hotter the water is going through your system.

With a system like this you will notice that your heat will run longer and still not cost anymore money. This makes you more comfortable. The modulating boiler will give you just enough heat to keep you warm without wasting much of the heat that a normal boiler would. This type of furnace will give you the most efficient heating possible on any given day.

Before buying a new heating system or replacing your old hot water boiler make sure that you check into a system that will modulate the fire and also vary your heating water temperatures according to the outdoor temperatures. This will save you money and give you a very comfortable heating system.

on Dec 08, 2009 | Heating & Cooling

1 Answer

Laars Endurance ebp have hot water but not heat


check the valve actuator honeywell zone valv

May 15, 2010 | Heating & Cooling

1 Answer

I have a Y plan heating/domestic instalation.The boiler will go off and on even if the programmer is off,If the programmer is off and I turn the cylinder stat up the c/heating pump will run,i recently...


Hi the cylinderstat controls the hot water only not the heating the boiler stat controls the water temp the room theromstat controls the rads , if you have one ,

so boiler stat set on 180f or number 5 cylindersat set on 140f to 120f roomstat to your comfort , the boiler stat works as a over heat so if the cylinder stat or roomsat fail it will turn off on the boiler you should beable to check wiring from that .

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Problem with hot water from Vokera Excell 80sp boiler


Hi - hope someone can help. I have a VOKERA EXCEL 80SP combi boiler and been without hot water/central heating for two days. The pilot light is on, the fan is on, but boiler not triggering once the hot water tap is turned on.
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Thank you.

Dec 21, 2009 | Water Heaters

2 Answers

No central heating back boiler


back boiler run from a gas fire? check the instructions to operate the gas heat to the back boiler not just the fire
I presume that this a fully pumped system - air lock doubtful There maybe on/off valves on the pipes to and from the back boiler [situate close to cylinder] make sure they are on - anticlockwise turn
or there could be a blockage in the outlet from header tank usually in the loft. or If there is no water in it maybe the mains cold feed it is off.
Note if no water in it DO NOT USE the back boiler

May 03, 2009 | Bosch & Power Vent Water Heater

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