Is the Worcester Bosch Greenstar Ri 18Ri a combi boiler, system boiler or regular boiler?

You might want to consider the Worcester Bosch Greenstar Ri 18Ri for your house or flat if you are looking for a heat only boiler.

You may hear a heat only boiler being referred to as a conventional boiler, a standard boiler or a regular boiler, but they're all the same. Heat only boilers require both an immersion and a cold-water tank to function, the latter usually being situated in the loft. Water is kept warm throughout the day by the immersion cylinder for use when needed.

With a heat only boiler, you program the times at which you want to have hot water and central heating, but if you forget and there's no hot water left, you’ll have to wait for it to heat up before you have your bath or shower.

If you have a home with more than one bathroom, or a larger family, a heat only boiler will probably suit your needs. This is because, if you opted for a combi boiler instead, the water pressure, volume and temperature drop when more than one point is in use - for example if you have a shower while running hot water in the kitchen or another bathroom.

Is the Worcester Bosch Greenstar Ri 18Ri 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.

Your boiler's output indicates the maximum amount of power available to it to heat the water you need to warm your radiators or when you want hot water from your taps. A higher output rate means that your boiler is capable of heating greater volumes of water.

If a boiler's output rate is too low, you'll often find that the water is not as hot as you want it to be. Too high, however, and you'll end up paying more for your gas than you should be.

The Worcester Bosch Greenstar Ri 18Ri heat only boiler has an output rate of 18 kW, so which types of property would this be suitable for?

An experienced PlumbProud boiler engineer would likely recommend this Worcester Bosch Greenstar Ri 18Ri heat only boiler as suitable for smaller homes and apartments with up to 10 radiators and one bathroom.

What is the size of the Worcester Bosch Greenstar Ri 18Ri?

The Worcester Bosch Greenstar Ri 18Ri is 600 mm tall, 390 mm wide, and 270 mm deep.

Greenstar Ri 18Ri – non-condensing or condensing?

Because of their increased energy efficiency, we recommend to all customers that they select one of the latest condensing boilers. Condensing boilers capture the heat from water vapour condensation and flue exhaust gases and recycle that heat to warm water entering the boiler (for example, from your radiators).

The Worcester Bosch Greenstar Ri 18Ri is a condensing gas boiler and choosing this model will result in a likely substantial reduction in your fuel bills, particularly if you're replacing an older, inefficient, non-condensing boiler.

Is the Worcester Bosch Greenstar Ri 18Ri heat only boiler rated as environmentally friendly?

How we heat our homes has become a pressing issue of concern for many homeowners worried about climate change and the environmental impact of their personal choices.

Central heating produces 14% of all greenhouse gas emissions in the UK. Gas boilers in the larger cities emit dangerous levels of nitrogen dioxide.

If you would like your next boiler to help in the fight against climate change, would the Worcester Bosch Greenstar Ri 18Ri heat only be a suitable choice?

By law, boilers manufactured and supplied in the UK must achieve a SEDBUK rating of "A" and work at a 92% minimum efficiency. Before April 2018, a minimum of 88% energy efficiency needed to be achieved (88/89% = SEDBUK "B" and 90% = SEDBUK "A").

Following official testing, the Worcester Bosch Greenstar Ri 18Ri was given an efficiency rating of 92% with a SEDBUK rating of "A".

Energy efficiency is a measure of how much energy is used and how much is wasted when a boiler is operating.

The ERP (Energy Related Products Directive) is European legislation that aims to reduce the use of energy at all points during a product's life, from the point of manufacture to when it's in active use right through to final disposal.

The regulation aims to encourage manufacturers to create products that are more environmentally friendly and which reduce gas emissions associated with those products.

The ERP grading for the Worcester Bosch Greenstar Ri 18Ri is "A".

How long am I covered by the warranty for if the Worcester Bosch Greenstar Ri 18Ri breaks down?

The parts and labour warranty on the Worcester Bosch Greenstar Ri 18Ri covers all repair-related costs for 7 years while the heat exchange warranty covers you for [Heat Exchange Warranty] years.