Is the Worcester Bosch Greenstar CDi FS Regular 42 boiler a standard, combi or system model?

Worcester Bosch’s Greenstar CDi FS Regular 42 is one you might consider if you’re looking for a heat only boiler for your house or flat.

If your home has more than one bathroom or you have a large family which uses a lot of hot water, a heat only boiler (sometimes called a regular boiler, a conventional boiler or a standard boiler) is likely to be the best option for you. Heat only boilers require both a hot water or immersion cylinder and a cold water tank. Once the water in the cylinder is heated, you can use this hot water throughout the day and it can feed multiple taps and showers at the same time.

This is in contrast to a combi boiler which can only heat a limited amount of water at any one time. This can cause a problem if two or more taps and showers are being used simultaneously as the temperature, pressure and volume to all points will drop.

Heat only boilers allow you to program the times that you wish heat and hot water to be available. However, if you forget to do this and the immersion cylinder is empty, you may have to wait up to an hour before hot water becomes available again.

If your property already has a water tank and cylinder, it will nearly always be cheaper to replace like for like and not choose a different type of boiler. In addition to new pipework, you may need to replace older radiators that may be unable to cope with the higher water pressure delivered by other types of boiler.

Is the Worcester Bosch Greenstar CDi FS Regular 42 heat only boiler a suitable choice for my property?

You should make sure that the boiler you install in your property is the right "size". And size doesn't mean its physical dimensions, size means how much power it has - the "output".

Output measures in kilowatts how much power a boiler can use when heating water for your radiators or taps. The higher the output rate, the more water it can heat.

If the output rate is too low, your hot water might often be only lukewarm, and if it is too high, you will be paying more for your gas than you need to.

The Worcester Bosch Greenstar CDi FS Regular 42 heat only boiler has an output of 42 kW, so which types of property would it be most appropriate for?

An experienced PlumbProud Gas Safe boiler installer would almost certainly recommend that this Worcester Bosch Greenstar CDi FS Regular 42 heat only boiler would be most suitable for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

What are the dimensions of the Worcester Bosch Greenstar CDi FS Regular 42 boiler?

The Worcester Bosch Greenstar CDi FS Regular 42 is 850 mm in height, 400 mm in width and 600 mm in depth.

Many homeowners dislike the floor-standing boilers (like the Worcester Bosch Greenstar CDi FS Regular 42) they have in their properties because they feel that they are bulky and take up too much room. If this is you and you want to replace what you have now with a compact, wall-mounted boiler, we can do this for you, although please note that you may need to pay for new piping.

The gas bill savings offered by modern boilers are significant, however, and you should be able to recoup your investment in a few years.

Is the Worcester Bosch Greenstar CDi FS Regular 42 condensing or non-condensing?

Condensing gas boilers like the Worcester Bosch Greenstar CDi FS Regular 42 are environmentally friendlier and cheaper to run so, if possible, we strongly recommend that you choose this or one of the very latest models.

Condensing boilers are much more efficient and economical to run because they contain a secondary heat exchanger that captures and recycles the warmth still present in the flue exhaust gases and the water vapour condensation for re-use, meaning that they use less gas to run.

Is the Worcester Bosch Greenstar CDi FS Regular 42 heat only an environmentally friendly boiler?

How we heat our homes has become a major issue for many people worried about climate change and environmental issues in general.

Central heating accounts for 14% of greenhouse gas emissions in the UK. In larger British cities, gas boilers emit dangerous levels of nitrogen dioxide into the atmosphere.

Will choosing a Worcester Bosch Greenstar CDi FS Regular 42 heat only boiler for your home be positive for the environment? Let's examine the figures.

All boilers manufactured and installed in the UK are required to have an energy efficiency rating of 92% or above (or a good “A” SEDBUK rating). Before April 2018, when the law changed, the minimum energy efficiency level permissible was 88% (86-90% is a SEDBUK "B" rating and 90%+ is an "A" rating).

A boiler's energy efficiency rating indicates the amount of energy used and wasted during normal operational performance.

Following its assessment, the Worcester Bosch Greenstar CDi FS Regular 42 was given an efficiency rating of 92% and a SEDBUK grading of "A".

The Energy Related Products Directive intends to encourage all manufacturers to reduce harmful gas emissions connected to the products they make, from the manufacturing stage to final disposal, including when they are in active use.

The Worcester Bosch Greenstar CDi FS Regular 42 has an ERP rating of "A".

What warranty does the Worcester Bosch Greenstar CDi FS Regular 42 heat only boiler come with?

The Worcester Bosch Greenstar CDi FS Regular 42 boiler is provided with a parts and labour warranty lasting 7 years.