A gas boiler, fuelled with natural gas, oil, LPG or propane (etc), is the most common kind of appliance used for central heating in Ditherington 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.
Ditherington Super Low Energy Combi Boiler Inspection – Many Things You Will Want to Know
Oil-fired condensing boilers are just starting to be used in the United States. There are some obstacles to overcome and some great advantages to condensing oil technology.
One of the main reasons that they have not been used more is because of the lack of low-sulphur heating oil being readily available. A condensing oil boiler must burn the low-sulphur heating oil for it to work properly. As more and more of these units are sold in different areas of the US the right fuels will become more readily available.
Modern oil condensing boilers can save you as much as 30% more energy than many conventional boilers. A modern oil condensing boiler will not only heat more efficiently but because of this, it will reduce your heating oil consumption. When low-sulphur heating oil or heating oil with biogenic additives are used in an oil condensing boiler, it then becomes almost as environmentally friendly as using natural gas.
If your boiler is more than 15 years old, replacing it with a new condensing boiler, of the right heat output for your property size, should save you around a third on your heating oil bills. If you plan to install a new boiler or to replace an existing one, in some cases you will need to install a condensing boiler to meet today’s higher standards for energy efficiency required under many building codes. Today’s new boilers are not only smaller, neater, they also take up less space, Therefore they are much more energy-efficient and therefore use less fuel to produce the same amount of BTU’s. A typical conventional boiler burns fuel in a combustion chamber that is surrounded by a water jacket. Condensing boilers also extract the heat from the products of combustion using a secondary heat exchanger.
A condensing combi boiler is a boiler that will heat your home and provide you with instantaneous hot water, without adding a hot water tank. Most of these boilers use a coil that is immersed in the hot water inside the boiler. The cold water is run through the coil and the heat is transferred from the boiler water to the domestic water. These boilers make the production of your hot water very efficient also.
Condensing oil boilers basically are not that much different than conventional boilers. They just are designed so that they reduce the flue gases temperature to the point where the water vapor in the exhaust is cooled to the point where it condenses. This condensing feature also releases the latent heat in the flue gases. This heat is also collected and used to heat you home.
Condensing boilers are not only a great deal for new construction, but they can also be used to upgrade many old heating systems. They are nearly the same size as older boilers and in some cases, they are smaller. The piping may have to be reconfigured a bit, but a good contractor can fit an oil-fired condensing boiler easily into any system. You gain will be a highly efficient and comfortable heating system.
Combi Boiler Technology Explained
Worcester-Bosch is undoubtedly one of the leading manufacturers of gas-fired boilers in the UK, with a rich history spanning 50 years of production, Worcester is one the household names to look for when purchasing a new gas boiler for your home.
In August 2012, Worcester announced the launch (although to many say it was a revision) of the new Greenstar CDi Classic Combination Boiler Range.
A total of 8 models of boilers have been launched, they are:
Greenstar 29Cdi Classic – (Formerly Greenstar 27Cdi)
Greenstar 34Cdi Classic – (Formerly Greenstar 30Cdi)
Greenstar 38Cdi Classic- (Formerly Greenstar 37Cdi)
Greenstar 42Cdi Classic – (Formerly Greenstar 42Cdi)
All models are available in either standard natural gas, or in an LPG option for those in remote locations.
So What’s The Difference?
Most notably, the Greenstar Classic range has had a whole host of internal upgrades and improvements with the clever introduction of a more energy-efficient standby mode. With consumers continually looking at ways to reduce their energy consumption within the home, Worcester has managed to reduce the standby electricity output of the CDi boilers from 9W to just 3.5W in the new CDi Classic Boilers.
This enables customers to benefit from a more energy-efficient source of heating and hot water, which will have a positive impact on electricity bills. Therefore keeping a high standard in energy efficiency and maintaining the SEBUK A-Rated performance values in excess of 90% efficient.
The overall outputs of 27kW, 30kW and 37kW within the CDi range have been upgraded to 29kW, 34kW and 38kW in a move which substantially improves performance in flow rates, giving better hot water service to bathrooms and kitchens.
In addition to this increase in performance and reduction in energy consumption, the everyday operation has not been overlooked in this overhaul. The introduction of a magnetic flap access panel has greatly improved upon the Greenstar CDi’s original push and click mechanism, a feature which often failed with many years of use.
With peace of mind and reduced costs on everyone’s minds, Worcester haven’t scrimped on the warranty either, with a current promotion of a full 5 Year parts and labour warranty on the boiler and a huge 10 Year Warranty on the primary heat exchanger.
Some features and benefits at a glance:
- Best boiler efficiency rating SEDBUK band A
- Fully condensing in both central heating and domestic hot water modes
- Keep hot facility – instantly available hot water
- Extremely small standby electrical output of 3.5W – energy efficient
- Wall mounting frame allows pipework to be hidden from view
- Vertical pre-piping kit
- Below boiler pipe cover
- Earth bonding strip
- Low NOx and CO2 emissions – environmentally friendly
- 5 year boiler guarantee until 31st December 2012, terms and conditions apply (standard guarantee: 2 years)
- 10 year guarantee on primary heat exchanger
- 5 year anti-scale guarantee on domestic hot water heat exchanger
- Hot water and central heating temperatures can be controlled
- Multi-directional fluing means boiler can be sited in a wider variety of places
- Mechanical, digital and new generation intelligent controls all compatible
- Heat load and flow generated precisely to meet the heating system’s requirements using a modulating pump.
With the introduction of the new Greenstar Classic Combination boilers in 2012, Worcester’s continued program of improvements ensures they remain the UK’s favoured choice for boiler manufacturer, there is no better time to purchase a combi boiler to reduce bills and save energy.
For Ditherington Systems We Usually Advise Buying From The Top Combi Boiler Range
The main theory of what a conventional non-condensing boiler does is pretty simple. A boiler works by igniting a combustible fuel source (oil, natural gas, or LP gas), with an appropriate air mixture. The heat from the flame and hot combustion gases pass through a heat exchanger within the boiler, where water is heated and then circulated through radiators, underfloor radiant tubing, and hot water cylinders throughout the house. The flue gases then escape through the chimney or venting system. A decent amount of heat is wasted with this type of boiler, where the heated gases are just directly vented out. These types of boilers have a lower efficiency rating; no higher than 75%. An efficiency rating is basically a gauge of how much energy the boiler transfers from fuel used to how much heat is supplied to the system.
Condensing boilers work a bit differently. They essentially have some of the same components non-condensing boilers do, except for a second heat exchanger. One of the gases produced in the combustion of fuel is water vapour. Where the hot flue gases just got vented out in a traditional boiler; condensing boilers condense these vapours around a second heat exchanger before venting. By the time the gases are ready to be vented out, they are much cooler, around 60 degrees Celsius. As a result, the vent pipe used in installation can be made of PVC.
With these systems, some of the internal components have to be made of more durable material, because the condensed water tends to be acidic with a 3-5 pH. This results in the cost of the condensing boiler being higher than average. The secondary heat exchanger is where the system return enters first. So by the time the water enters the primary heat exchanger, it is already been preheated, allowing the boiler to work more efficiently. The efficiency rating from condensing boilers ranges from between 80% to 98%.
Combi boiler / Combination boiler
Combi boiler / Combination boiler is an excellent choice for homes with limited space. Combi boiler / Combination boiler is a domestic water heater and a central heating system combined into one unit. They have a heating coil inside of them, and function like an unlimited on-demand water heater. Combi boilers don’t have cylinders or external holding tanks as traditional systems do, so they can be installed in areas where a typical system would never work.
Condensing Boiler Pros
1 They are fuel economy styled and have a 15-30% higher efficiency rating than non-condensing counterparts
2 Considerable savings on annual energy expenses
3 Most units are very quiet ( they make as much noise as a window-mounted air conditioner)
4 Many Models could easily fit in a small closet and have a combination boiler
5 They are more environmentally friendly with C02 output
Condensing Boiler Cons
1 Initial cost of the unit is more
2 Units need to have the acidic condensate fitted outside or to a waste line
3 The dwelling the boiler is installed in needs to be insulated well, otherwise, the heat saved through efficiency will be lost through the walls.
4 Most units need an outdoor weather sensor to operate effectively