Is the Worcester Bosch Greenstar Danesmoor External 12/18 boiler a combi, system or regular boiler?

The Worcester Bosch Greenstar Danesmoor External 12/18 boiler is an option you may wish to consider if you're looking for a heat only boiler for your house or flat.

Heat only boilers (often referred to as standard boilers, regular boilers or conventional boilers) need both a hot water cylinder and a cold water tank to work. The hot water cylinder heats and keeps warm the water you need and is normally installed in either a utility room or attic. The cold water tank holds water which it passes to the hot water cylinder depending on how you've programmed your boiler.

When you program a heat only boiler, you set the times and days when you want central heating and hot water to be available. However, if you don't remember to program your boiler and there's no water left in the hot water cylinder, you may have to wait up to an hour for hot water to come out of your taps.

Heat only boilers can cope with the demand for hot water from multiple taps and sources around your home simultaneously. That's why they're better for larger homes than combi boilers - combi boilers struggle when more than one hot tap is turned on. This is because they have a maximum capacity of water they can heat and distribute at any one time, meaning water pressure, temperature and volume to each tap drops.

Is the Worcester Bosch Greenstar Danesmoor External 12/18 heat only boiler a suitable choice for my property?

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

A boiler's output level measures how much power it can use to provide you with the hot water you need for your radiators and taps. If a boiler has a high output rate, it can heat greater volumes of water.

If you choose a boiler with too low an output, you'll find that the water coming out of your taps and in your radiators won't be as hot as you want it to be. Choosing one whose output is too high means you'll pay more than you need to for the oil your boiler needs to work.

The Worcester Bosch Greenstar Danesmoor External 12/18 heat only outputs at a maximum of 18 kW, so which types of property would this Worcester Bosch Greenstar Danesmoor External 12/18 heat only boiler be appropriate for?

Most heating engineers would suggest that the Worcester Bosch Greenstar Danesmoor External 12/18 heat only boiler would be a suitable choice for installation in smaller homes and apartments with up to 10 radiators and one bathroom.

The size of the Worcester Bosch Greenstar Danesmoor External 12/18 in millimetres

The Worcester Bosch Greenstar Danesmoor External 12/18 is 950 mm tall, 565 mm wide, and 600 mm deep.

Floor-standing external heat only boilers like the Worcester Bosch Greenstar Danesmoor External 12/18 operate reliably and consistently outdoors because of their solid weatherproof housing designed to protect against rusting and water ingress. And, because they're not installed inside your property, you save valuable indoor space.

Internal oil boilers can leak and, when they do, they damage your property and leave unpleasant odours which are hard to remove. An external boiler eliminates the risk of indoor oil leaks and the danger of carbon monoxide getting into your home is also greatly reduced. An external boiler is easier for your heating engineer to access when it requires servicing or repair.

Worcester Bosch Greenstar Danesmoor External 12/18 – condensing or non-condensing?

We recommend that you select a condensing boiler like the Worcester Bosch Greenstar Danesmoor External oil Worcester Bosch Greenstar Danesmoor External 12/18 for your home if possible because of the environmental benefits and the money you'll save on your oil bills.

Condensing boilers are much more energy-efficient than older, non-condensing models as they capture and recycle the heat still present in the water vapour condensation and flue exhaust gases that your boiler creates when burning oil for reuse.

Is the Worcester Bosch Greenstar Danesmoor External 12/18 heat only boiler an environmentally friendly choice?

How we heat our homes and the damage this does to the environment has become a pressing concern for many homeowners worried about the effects and impact of climate change.

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 Danesmoor External 12/18 heat only help the environment? Let's see what the statistics suggest.

All boilers manufactured and supplied in the UK must achieve an energy efficiency rating of at least 92% (an "A" SEDBUK grade). This is higher than the previous 88%, which was a legal requirement prior to April 2018.

The energy efficiency rating is used to work out how much energy a boiler both uses and wastes when it's switched on and working correctly - its standard functioning and operation.

The Worcester Bosch Greenstar Danesmoor External 12/18 is rated as 90% energy efficient, equivalent to a "A" SEDBUK rating.

The Energy Related Products Directive grades products according to the energy they consume and the harmful gas emissions they create, from manufacturing right through to final disposal, including how they're used by customers between these two points.

The Worcester Bosch Greenstar Danesmoor External 12/18 is rated "A".

How long is the warranty offered by the manufacturer for the Worcester Bosch Greenstar Danesmoor External 12/18 boiler?

A parts and labour warranty of 2 years is included with the Worcester Bosch Worcester Bosch Greenstar Danesmoor External 12/18 boiler.