What kind of boiler is the Worcester Bosch Greenstar Ri 15Ri - standard, combi or system?

If you are searching for a heat only boiler for your house or flat, the Worcester Bosch Greenstar Ri 15Ri is certainly one to consider.

If your home has more than one bathroom or you have a large family that uses a lot of hot water, a heat only boiler (sometimes called a standard boiler, a regular boiler or a conventional 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 water temperature, pressure and volume to all points will drop.

Heat only boilers allow you to program the times that you want 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 instead of replacing it with 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 Ri 15Ri heat only suitable for my house or flat?

To determine that, we need to consider the size of the boiler. Size doesn't mean how big it is - it means how big its "output" is.

Boiler output is measured in kilowatts and tells you how much power a boiler can use to heat the water your taps, showers and radiators need. The higher the output, the more power it has.

When choosing a boiler, you should choose one that can cope with the peak demand for hot water in your home and not just your typical usage.

If its output is too low, sometimes your hot water will not be hot enough, but if your boiler's output is too high for your needs, your gas bills will go up and not down.

The output of the Worcester Bosch Greenstar Ri 15Ri heat only is 15 kW, so which types of property would this Worcester Bosch Greenstar Ri 15Ri heat only boiler be an appropriate choice for?

A PlumbProud Gas Safe boiler installer would recommend that this Worcester Bosch Greenstar Ri 15Ri heat only boiler be installed in smaller homes and apartments with one bathroom and up to 10 radiators.

What are the proportions of a Worcester Bosch Greenstar Ri 15Ri boiler?

The Worcester Bosch Greenstar Ri 15Ri is 600 mm tall, 390 mm wide, and 270 mm deep in size.

Is the Worcester Bosch Greenstar Ri 15Ri condensing or non-condensing?

The Worcester Bosch Greenstar Ri 15Ri is a condensing gas boiler - we strongly suggest that you choose either this model or a recently released model if at all possible.

A condensing boiler captures and recycles the warmth present in flue exhaust gases and water vapour condensation created by the burning of gas to warm up the water coming back into your boiler - for example, from your radiators.

Condensing boilers cost less to run (lower gas bills) and are better for the environment.

Is the Worcester Bosch Greenstar Ri 15Ri heat only good for the environment?

As more of us become concerned by the effects of climate change, the damage we do to the environment by heating our homes has emerged as an important issue for many homeowners.

As much as 14% of the UK’s greenhouse gas production derives from our domestic central heating systems. Gas boilers are responsible for dangerous levels of nitrogen dioxide emissions in Britain's largest cities.

Would choosing the Worcester Bosch Greenstar Ri 15Ri heat only be an environmentally-friendly choice? If so, let's look at its performance figures.

All boilers manufactured in the UK from April 2018 must achieve a SEDBUK “A” grade and an energy efficiency rating of 92% or above. Before that, the minimum was 88% - efficiency ratings of 88% and 89% were scored a “B” and 90%+ an "A".

A boiler's energy efficiency rating describes how much energy it uses and wastes during its standard operation.

The energy efficiency of the Worcester Bosch Greenstar Ri 15Ri was rated at 92% with a SEDBUK grading of "A".

The ERP (Energy Related Products Directive) applies to all products that consume energy at any time in their lifetime, from manufacture to disposal and all points in between.

The intention of this European legislation is to encourage manufacturers to offer end users products that are better for the environment through the creation of fewer harmful gas emissions at all points of a product's life cycle.

The ERP rating for the Worcester Bosch Greenstar Ri 15Ri is "A".

What is the warranty period on a Worcester Bosch Greenstar Ri 15Ri heat only boiler?

The Worcester Bosch Greenstar Ri 15Ri boiler comes with a parts and labour warranty of 7 years.