Category Archives: Central Heating

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What Is Secondary Heating?

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Many households use individual heaters, such as portable electric heaters or fixed gas fires, in addition to their central heating. This is called ‘secondary heating’. Modern central heating systems are usually more efficient than individual heaters, but it can make sense to use an individual heater to heat one space for a limited time. This can help avoid over heating spaces that do not need to be heated, or are used infrequently. Secondary heating is typically provided by one or more of the following:

  • Portable electric heaters such as oil filled, convection, panel or fan heaters
  • Portable halogen heaters
  • Open gas fires
  • Range cookers
  • Traditional gas fires
  • Wall-mounted gas heaters

secondary heating

Kensign Engineering Ltd can help you with all these heating devices.


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heating system

Understanding Your Heating System

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In a typical UK household, more than half the money spent on fuel bills goes towards providing heating and hot water. As fuel costs rise, having an efficient and cost effective heating system is vital, and it’s one of the main steps you can take to reducing your carbon dioxide emissions.

heating system

 

Kensign Engineering Ltd can give you advice on all the efficient boilers on the market.

It’s important to understand your current heating configuration. Nearly all homes in the UK have either a central heating system – a boiler and radiators – or they use electric storage heaters. Some homes will also make use of individual heaters that are not part of the main central heating system.

Call us on 07903 160061 for further information and advice regarding your heating requirements.


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Choosing the right boiler

What Is A Combi Boiler?

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What is a combi boiler?

A combi boiler combines a highly efficient water heater and a central heating boiler into one compact unit.  As a result, the combi boiler is fast becoming the heating system of choice in new homes across the UK, with over 50% of new installations being this type of boiler.

Combi boilers and storage space

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 boiler is not only an ideal space saving solution (as the combi boiler unit is very compact), but also it limits the heat that escapes as waste compared to traditional models, via things like the hot water tank.

Combi boilers and heating hot water

Combi boilers take water from the mains and then heat it as required, but are on standby when there is no water demand. Therefore hot water is available 24/7 and also just as importantly, the water is delivered at mains pressure, so no pump is required to deliver the ‘power shower’ experience (provided your home has adequate mains water pressure).

To produce the hot water that comes out of the taps, the cold mains water passes over a highly efficient heat exchanger. The heat exchanger transfers the vast majority of the heat from the burnt gas (90% or more) to the cold water, and then delivers it to the taps as required. Since combi boilers do away with the hot water tank, they are much more energy efficient, since there are no heat losses associated with stored hot water, it is simply created as needed.

Combi boilers and your central heating system

On the central heating side, combi boilers pump the water round the heating system in a completely sealed system. The boiler incorporates an expansion tank internally, so there is no need for an external feed and expansion tank in the loft, which obviously saves a great deal of space.

One of the issues with a combi boiler is that they struggle to produce both hot water and central heating at the same time, so priority is given to your domestic hot water whenever a hot water tap is opened in the home. For example, if you are running a bath, during this time no hot water will be circulated through your heating system, but as soon as the bath is full, the central heating circulation will resume.

Combi boiler efficiency

Since combi boilers don’t have to store any hot water, the heat losses via the hot water tank are zero, helping save you money on your gas bills.

Most boilers installed today are condensing boilers, so if you choose a combi boiler you would actually get a condensing combi boiler installed. These types of boilers use the heat contained within exhaust gases that would normally be released in to the atmosphere via the flue. They take advantage of heat exchangers to make the most of this latent heat, so less fuel is needed each time to heat the water, thereby further reducing your fuel costs.

The main 2 issues with combi boilers

The first issue is that since the hot water is produced at mains pressure, if the hot water is required in multiple outlets at the same time (e.g. a shower and the washing machine are running at the same time), there will be pressure drops at the different outlets. There are two solutions for this, firstly you can install a mains booster which recognises when pressure and flow are low and automatically boosts the performance of the incoming mains water. The second solution is to install an accumulator tank, which is a steel vessel that stores mains water at the pressure it is supplied into the home. Air within the steel vessel (trapped in a rubber diaphragm) is compressed by the mains water.  When a tap is opened the water can rush out of the vessel to the tap – faster than the mains

The downside of the accumulator tank is that once all the water in the tank is gone, you have the same pressure issues that you would experience if this wasn’t present.

The other issue is that if your combi boiler breaks, quite simply you will have no hot water generating facility other than the kettle. Most hot water tanks (within the system or regular boiler systems) come equipped with a electric immersion heater, so even if the boiler breaks you can still produce hot water for showers and baths (albeit in a rather expensive way).

Kensigns thoughts on combi boilers

In new homes where hot water demand is not extravagant, then a combi boiler is the most effective central heating / hot water system. They are very reliable and simple to install, save space (since they do away with cold and hot water tanks) and produce the hot water on demand as it is required in the home. As a result, in most situations we would recommend installing this type of boiler when you current boiler reaches the end of its useful life.

Benefits

  • The hot water is available 24/7 on demand at mains pressure, giving that ‘power shower’ effect.
  • Combi boilers are very compact and can sit fairly innocuously in your kitchen, or take up a small amount of space in your airing cupboard.
  • Combi boilers only produce hot water when it is needed, so no hot water is produced unnecessarily, which can help lower your bills.
  • There is no need for a hot water tank in an airing cupboard or a cold water storage tank in the loft.

Limitations

  • The main issue with a combi boiler is that it will struggle to cope with high demand for hot water from
  • multiple sources at the same time, because the hot water flow rate is divided by each of the water sources.
  • If the combi boiler does break down for some reason, then you have no capacity to produce hot water other than the kettle.
  • Combi boilers are currently not compatible with solar thermal technology.

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Worcester Boiler Warranty

Worcester Boiler Warranty

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Worcester Boiler Warranty

To benefit from your free Worcester boiler warranty, all you need to do is buy an eligible Worcester Greenstar boiler and arrange for it to be installed within your property by Kensign Engineering Ltd

Kensign Engineering Ltd will register your warranty via the Worcester Bosch website.

In order to retain the extended warranty period you must ensure that your boiler is serviced annually over the 5 year period as per Worcester’s terms and conditions.


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new boilers

Worcester Boilers Achieve Top Awards For New Boilers

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New Boilers – Kensign Engineering Ltd can fit the entire range of Worcester Greenstar gas boilers which have come out on top in the Which? boiler report, having been awarded Which? Best Buy for the 6th year running.

With the peak heating season now with us, Kensigns gas boilers continue to be among the best in the market, earning an overall score of 79 percent, based on customers scores and engineers views. The Greenstar range scored 5 stars for reliability, customer satisfaction and build quality as well as achieving the maximum star rating in 5 of the 6 categories.

Kensign Engineering fits new boilers

The annual survey compared 11 brands in total, revealing us to be the most reliable, with our boilers remaining fault free longer than all other manufacturers. The results were calculated from the views of 10,779 owners and for the first time a 110 Which?  Kensign Engineering Ltd can fit one of these award winning boilers in your home.


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Kensign Engineering Offer. Boiler Grant. £300

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Kensign Engineering Offer.  Boiler Grant. £300 off

If your current boiler’s seen better days then why not invest in a brand new one. We’ve teamed up with HPS Boiler supplies to bring you this Boiler Grant great offer of £300 off a new boiler for a limited time only.

Don’t miss out – offer ends 30 March 2017.

The cost of installing a new or replacement boiler is often more expensive than the boiler itself, so you need to know what to expect before you contact a Kensign Engineering. This isn’t a job you can do yourself to cut costs, unless you’re a Gas Safe registered installer.

Boiler installation costs vary enormously, depending on how much work is required, the parts needed and their availability, where you live and who you employ for the job. Following the boiler scrappage scheme in 2010, which allowed those with an inefficient boilers to claim back cash to help them pay for a new boiler, a freedom of information request revealed energy companies were charging, on average, around a third more than independent traders.
Independent installers come out on top when it comes to value for money, quality of workmanship and after sales service. Ask about the Boiler Grant

Boiler replacement. With A Boiler Grant

If your boiler is beginning to break down, and is more than 10 years old, it might be more cost effective to replace your old boiler with a new one. Spare parts are harder to come by as your boiler gets older.

please contact us for further information


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How to Save Energy and Money on your Central Heating

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Simply turning the central heating down by a degree or two can make a significant difference to your energy consumption but here are some simple tips to save energy on your central heating:

  • Use your central heating timer (not the thermostat) to turn heating on and off.
  • Keep your radiators clear. For example, don’t put a sofa in front of your radiator, because it will absorb a lot of the heat.
  • If your radiators are fixed to the outside wall, put radiator panels behind them to reflect the heat back into the room.
  • Use thermal curtains (or just heavy ones) during the winter, and close them at dusk so heat doesn’t escape through the windows.
  • For properties with high ceilings, placing a shelf just above the radiator helps to deflect the heat into the centre of the room rather than it drifting straight up to the ceiling.
  • Get a draught excluder – you could save up to £35 a year when you get rid of all the draughts in your house. [2]
  • Install insulation. Cavity wall insulation could save you around £160 a year and loft installation could save around £140.
  •  Fit double glazing so heat doesn’t escape through your windows.