Worcester Bosch Greenstar Ri 27Ri - combi, system or regular boiler?

The Worcester Bosch Greenstar Ri 27Ri may be worth considering if you are looking for a heat only boiler for your house or flat.

Sometimes called regular boilers, conventional boilers or standard boilers, heat only boilers require a cold water tank (often kept in the loft) and a hot water cylinder and an immersion heater (often kept in a landing or airing cupboard) to work. The immersion heater heats the water and keeps it warm.

With a heat only boiler, you pre-set a timer to tell the system when you want it to provide you with hot water and central heating. Remember though, if you don't program it and there's no water left in the hot water cylinder, you'll have to wait up to an hour before running a bath or shower.

Heat only boilers are better for larger homes or homes with more than one bathroom where there is a high demand for hot water at certain times of the day. Unlike with combi boilers where water pressure, volume and temperature drops if, for example, more than one person is using a hot tap, regular boilers can cope with multiple members of your household wanting hot water at the same time.

Is a Worcester Bosch Greenstar Ri 27Ri heat only boiler appropriate for my house or apartment?

It's best to choose a boiler whose size or "output" is right for your property. With a boiler, however, size does not mean how big the boiler is, it means how much power it has.

The amount of hot water you get from showers, bathrooms, and sinks and heat from your radiators depends on your boiler's output (measured in kilowatts). The higher the level of output, the better your home will be heated and you can be more certain that the water from your taps will be as hot as you want.

However, you must be careful. You might not get the hot water you want if your boiler output is too low. If it's too high, you'll be paying more than you need to for gas.

With the Worcester Bosch Greenstar Ri 27Ri heat only's output at 27 kW, which types of property would this Worcester Bosch Greenstar Ri 27Ri heat only boiler be most appropriate for?

Most experienced Gas Safe engineers would likely recommend that, at this level of output, this Worcester Bosch Greenstar Ri 27Ri heat only boiler would be a suitable choice for larger properties including detached homes with 15 or more radiators and two or more bathrooms.

Worcester Bosch Greenstar Ri 27Ri - size in millimetres

Worcester Bosch’s Greenstar Ri 27Ri is 600 mm tall, 390 mm wide, and 270 mm deep.

Is the Worcester Bosch Greenstar Ri 27Ri a condensing or non-condensing boiler?

The Worcester Bosch Greenstar Ri 27Ri is a condensing boiler – we recommend to all clients that they choose the very latest condensing boilers because their efficiency continues to improve year after year.

Condensing boilers recycle heat from both water vapour condensation and flue exhaust gases via a secondary heat exchanger. With this heat, it performs other tasks like warming up colder water returning from your radiator without having to use more gas.

You will save money on your gas bills every year by choosing a condensing boiler as well as benefitting the environment.

How energy efficient is the Worcester Bosch Greenstar Ri 27Ri heat only boiler?

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.

Central heating systems are responsible for 14% of greenhouse gas emissions in the UK. You may also be aware that the gas boilers we use emit dangerous nitrogen dioxide in large volumes in the bigger British cities.

Will installing a Worcester Bosch Greenstar Ri 27Ri heat only be a positive contribution to the environment? Let's see what the experts say.

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 Ri 27Ri was given an efficiency rating of 92% and a SEDBUK grading of "A".

In 2015, new legislation was introduced by the EU to encourage manufacturers to develop more energy-efficient products that emit fewer harmful gases throughout their lifetime.

The Energy Related Products Directive (ERP) applies to all products that consume energy, including during the manufacturing process, at the point of final disposal, and all points in between.

The ERP rating of the Worcester Bosch Greenstar Ri 27Ri is "A".

How long is the warranty period on a Worcester Bosch Greenstar Ri 27Ri heat only boiler?

The Worcester Bosch Greenstar Ri 27Ri is supplied with a parts and labour warranty of 7 years.