A gas boiler, fuelled with natural gas, oil, LPG or propane (etc), is the most common kind of appliance used for central heating in Underdale and throughout the United Kingdom. It heats water which flows through pipes or a radiator, and it is used for hot water in the home as well as for a central heating system. It is also used for radiant floor heating systems. An annual boiler inspection and maintenance check by a registered “Gas Safe” gas boiler service heating engineer is essential for safety and comply with UK Law.
The Engineer will make sure that the heating system is installed according to regulations during the annual central heating and boiler inspection, that it is safe and it is working efficiently according to the manufacturers’ instructions. If this is done properly every year, gas boiler breakdowns and the resulting emergency repair work can often be avoided.
Underdale Super Low Energy Combi Boiler Inspection – Many Things You Need to Know
Combi boilers used to be very unreliable and would go wrong regularly, it was only around thirty years ago that Vaillant were the only manufacturers in the UK to have a Model, but in recent years due to technological advances, climate control and the demand for more efficiency, New reliable, highly efficient Combi Boilers now account for over 50% of all new boiler installations in the UK. Combi boiler prices vary due hugely due to brand, dimensions, power consumption and reputation.
They are amazing space saving devices which heat your home and heat your homes water directly from one compact unit. The 'Combi' is naturally highly efficient and does not require a water cylinder or any laborious tanks in the loft. Water is instantly heated and delivered through the taps at mains pressure so you can enjoy powerful showers without the need of a pump.
How A Combi Boiler Works
The Central Heating
When the temperature of your property goes below the required temperature you have set on your thermostat. The thermostat signals to the boiler to fire up the pump inside the boiler. The 'Venturi Effect' into action. The water starts flowing through a narrow gap in the pipe causing pressure to build up, just like when you put your thumb over a garden hose the velocity of the water increases and is this pressure that opens the gas valve.
The gas is ignited and the heat exchanger rapidly heats up a limited amount of water, when the desired temperature is met, the thermostatic element expands, the hot water valve closes and the heating system valve opens. This allows the hot water to escape into and circulate in the central heating system, increasing the heat of your property to your required temperature.
The Hot Water
The hot water is heated similarly to the Central Heating but it is the hot water taps that signals to the boiler to start up. The hot water is heated by taking around 12 litres per minute of mains pressure through the heat exchanger, which transfers the heat from the burning flame to the water. Which is then delivered to the hot water tap.
Applications for the Combi Boiler
The main difficulty is the hot water supply to the taps. Although some manufacturers believe their combi boilers can service multiple bathrooms. Arguing that multiple bathrooms can be supplied sufficiently and depends largely on the lifestyles of the occupants. A combi boiler could feasibly supply larger homes with more bathrooms. However, if for instance bathroom 1 is being used and bathroom 2 was also being used, the combi boiler could not simultaneously supply enough hot water to the taps as the pressure will drop dramatically, meaning both occupants of the bathrooms will experience a poor washing conditions.
We recommend Combi boilers should only be installed in smaller homes with only one bathroom.
We often Advise Buying From The Worcester Combi Boiler Range
It is important to maintain boiler systems properly. The best way to do this is to get your boiler serviced frequently. Experts and manufacturers themselves recommend getting your boilers serviced at least once a year, to be on the safe side. Servicing a boiler can make it more efficient and increase its performance. This keeps it in a good and functional condition, making it last longer. Although the sound of servicing your boiler might seem expensive, especially on a yearly basis, the cost will only go up the longer you put it off. In addition to this, it can become harmful and dangerous to all those living in the same house.
A yearly servicing is the recommended frequency; however, there are a few exceptions to this rule that must be taken into account for. Moving into a new house with a boiler already installed needs to be serviced too before it is used. You cannot be sure how old the boiler is, or how long it has been since it was last used or serviced, so it is always best to be safe than sorry. Also, it is recommended to get your boiler serviced if you have been on an extended holiday where no-one has been at home to use the said boiler. A dormant boiler can be filled with anti-freeze that must be drained before use once again. Also, once again, after not being in use for a long time, you cannot be sure the condition of the boiler. There may be clogged or broken parts which to someone who isn't trained in the profession of servicing boilers would be unaware of.
The best time for getting a boiler service done is in between August and October, the last few months of summer. Not only is this after the holiday period, where you might have left the boiler unused for some amount of time, but these months are the in the off-peak season so many service providers would be both available and able to offer you a discount. This means that you can save on money and get a good, professional service from a trained and licensed expert without any hassle. Leaving the service for even a few weeks after this time period will see a rise in the price and the busyness of the workmen as winter comes around and boilers start to break and need fixing.
A good boiler service provider is someone who has a good reputation and is qualified. Finding someone like this isn't hard, as there are many professionals out there, however, it is essential that you make sure that the person you choose to hire is an expert in the boiler servicing field. Checking a person's or a company's licenses can be easily done by logging onto the Gas Safe Register in the United Kingdom and looking up their names. The industry of boiler servicing is very lucrative, with many of your local company's and independent workers offering competitive prices for a variety of different services including boiler servicing. It is important not to get too distracted by the pricing when hiring someone to do the job.
Your boiler system manual is the best place to start when looking for information about its servicing. The manufacturer can also help you by answering any questions you might have that are not mentioned in the manual. Phone numbers and email addresses are usually provided with the manual, but if not, it can be easily found on the internet.
For Underdale Systems We Often Suggest Buying From The Worcester Combi Boiler Range
Combi boilers have a lot of advantages over conventional boilers, but also a few small drawbacks. This article will open your eyes to the things you should consider when purchasing a cheaper model. There are many models of combi boilers available in the market, and like in every other product, the price usually matches the quality and determines the results (you get what you pay for).
1) Possible scaling of the DHW heat exchanger
If the water company in your area, supplies you with hard water, chances are that your DHW heat exchanger will scale with time. In that scenario, you will have two choices; either replace it with an original piece from the manufacturer (which won't be cheap), or replace the whole boiler. Of course this problem can occur with any conventional tank as well, as this is one of the effects of hard waters. The latest and more expensive combi boilers are already designed to reduce scaling as much as possible. Another thing you could do is run softened water through it, but that would definitely invalidate your warranty.
2) No option of electric immersion heater
With a conventional water storage tank, if for some reason the boiler fails, you have the option of using an emergency electric immersion heater. But the combi boiler is tankless and this option would not be valid.
3)Possible incompatibility between gas pipes
You may need to upgrade the gas supply pipe, because the diameter may not comply with the regulations for installing combi boilers.
4)Good showers, slower baths
Although one of the combis' strengths is to be able to deliver high pressurized water in both your hot and cold taps, a cheaper model may have a modest flow rate of hot water. That is no problem if you are a shower person, because it will supply just what you need to take a nice hot shower. Nevertheless, it maybe a little slower for your bathtub to fill up.
5)It does not deliver instant hot water to all taps
If the boiler is far away from the tap you are using, it may take a few minutes for the hot water to come through, as it has to travel through many meters of cold water filled pipes. This is not a problem when filling up a tub or taking a shower, but if you just want instant hot water to wash your hands or fill up a basin, it may be irritating to have to wait and see an amount of cold water being wasted down the drain.