types of boilers explained _ worcester, bosch group

8/18/2019 Types of Boilers Explained _ Worcester, Bosch Group

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Boilers ExplainedHome (/) / Products (/products) / Boilers (/products/boilers) / Explained

Learn about boilersDeciding which boiler will make an ecient and practical !t with "our home and li#est"le can be con#using$ %he

images below show the main s"stem t"pes& how the" work& their ad'antages and what kind o# homes the" work

best in$

%"pes o# boiler

ombi Boilers

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es of Boilers Explained | Worcester, Bosch Group https://www.worcester-bosch.co.uk/products/boilers/explained

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.iew our combi boilers (https*//www$worcester+bosch$co$uk/products/boilers/director"boiler%"pe0combi)

combination or 1combi2 boiler is both a high ecienc" water heater and a central heating boiler in a single

compact unit$ ombi boilers heat water directl" #rom the mains when "ou turn on a tap& so "ou won2t need a hot

water storage c"linder or a cold water storage tank in the roo# space$

%he" are also 'er" cost+e##ecti'e and energ"+ecient as water is heated instantl" rather than being heated and

then stored in a c"linder$ n added bene!t is that hot water is deli'ered at mains pressure& which means that

"ou could get a power#ul shower without the need #or a separate pump$

ompact si3es make combi boilers per#ect #or smaller properties

4deal where there is little or no lo#t space

5o need #or a hot water c"linder allows increased li'ing space

5o cold water storage tank #rees up a lo#t #or con'ersion

5o risk o# lo#t pipework #ree3ing

Less pipework in the home makes installation t"picall" cheaper

6"stem Boilers


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.iew our regular boilers (https*//www$worcester+bosch$co$uk/products/boilers/director"boiler%"pe0regular)

9egular Boilers

9egular boilers (sometimes known as traditional& con'entional or heat onl" boilers) are ideall" suited to homes

that alread" ha'e a traditional heating and hot water s"stem which is linked to a separate hot water c"linder$

%hese boilers also need a cold water storage tank in the lo#t to #eed the hot water c"linder as well as a tank that

maintains the water le'el o# the central heating s"stem$

regular boiler ma" be the best option #or replacing an existing boiler i# the propert" has an older radiator

s"stem& as it might not be able to cope with the higher water pressure that is deli'ered b" s"stem or combi

boilers$

Per#ect #or homes where a lot o# hot water is used at the same time


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4deal where there are two or more bathrooms

good option in areas where water pressure is low

ompatible with solar water heating s"stems #or a lower carbon #ootprint and lower energ" costs

4mportant terms and de#initions

Term Definition

ondensing %echnolog"

ondensate

hanges to go'ernment legislation and technolog" ad'ances in boiler

design has dri'en boiler designs to condense to ensure as much heat as

possible is con'erted into use#ul heat #or "our home$ B" condensing& "our

boiler will ensure at least :;p in e'er"


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Term Definition

ErP 9ating %he ErP 9ating is a new re7uirement set b" the European >nion which is

designed to dri'e impro'ements in the ecienc" and per#ormance o#

heating and hot water products$ %he ErP rating introduces new ecienc"

classes #rom ?? to @ which are displa"ed on a labels which come with the

boiler$ ErP labels are alread" a common sight on washing machines&tele'isions and other appliances within electrical retailers$


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Term Definition

Alue %he ue is the part o# the boiler which allows exhaust gases to exit the boiler$

%he ue is t"picall" situated directl" behind the boiler enabling waste gases

to exit sa#el" straight out o# the external wall o# "our home$


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Term Definition

Alow 9ate Cuoted #or ombi boilers& a ow rate represents how man" litres o# hot

water comes out o# the tap in a minute$ our ow rate is determined b" the

amount (and pressure) o# water that is entering "our propert" #rom the

water main and the abilit" o# the boiler to heat that water to the temperature

"ou ha'e set$ %he more power#ul a boiler is (represented in k,)& the #asterthe boiler will be able to heat the water coming into "our home$

Howe'er it is important to recognise a high k, output will not alwa"s

increase "our ow rate$ 4# "ou ha'e =; litres per minute coming into "our

propert"& "ou will onl" be able to recei'e =; litres per min o# hot water$ Aor

example ha'ing a boiler that has a maximum ow rate o# = litres per min

will not increase the amount o# hot water "ou recei'e& i# "ou onl" ha'e =;

litres per min coming into "our boiler$


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Term Definition

@as 6a#e ccreditation

@reenstar

@as 6a#e ccreditation is the hallmark #or gas sa#et" in the >F$ n installer

must be on the @as 6a#e 9egister to be legall" allowed to work on "our boiler

or an" other gas appliances in "our home$ www$gassa#eregister$co$uk

(http*//www$gassa#eregister$co$uk/)

@reenstar is the name gi'en to all o# the ,orcester @as !red boiler range&

and signi!es high energ" ecienc"& reliabilit" and com#ort$ %here are more

than G million @reenstar ombi boilers !tted in >F homes$


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Term Definition

A%E ccreditation A%E is a trade association that takes a lead role in setting industr"

standards o# oil+!red boilers$ A%E manages a competent person

registration scheme& enabling "ou to !nd installers who install& commission

and ser'ice oil+!red products$ ,e alwa"s recommend that "ou choose a

7uali!ed A%E installer #or "our installation$ www$o#tec$org(http*//www$o#tec$org)


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Term Definition

pen .ent

6EDB>F 9ating

%his is a term which is also used to describe a 9egular boiler t"pe$ pen

'ent s"stem will ha'e a Ipen .entJ and tanks within the lo#t space$ %his t"pe

o# heating s"stem is t"picall" common in older propert"2s$

6EDB>F stands #or 6easonal Ecienc" o# Domestic Boilers >F$ 4t pro'ides a

rating structure which pro'ides both a percentage ecienc" score as well as

to @ rating enabling an eas" comparison o# boilers$ 6EDB>F has been

integrated to the recent ErP labelling directi'e$


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Term Definition

6tandard Ecienc" (@ 9ated) ld I6tandard Ecienc"J boilers waste large amounts o# heat as the" don2t

ondense and rec"cle the heat be#ore it lea'es "our boiler 'ia the ue$ 4n the

current 6EDB>F rating structure a 6tandard Ecienc" boiler would be

deemed @+rated and is likel" to be K; less ecientM than a new ,orcester

+rated boiler$


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Term Definition

6"stem Ailter

6"stem Alushing

s"stem !lter is a speci!call" designed unit which aims to remo'e and !lter

magnetic and non+magnetic contaminants #rom "our central heating s"stem

be#ore the" reach "our boiler$ Building 9egulations alwa"s recommends a

s"stem !lter be !tted to "our heating s"stem pipes prior "our boiler to

pre'ent an" damage to ke" components$

'er time ox"gen in the heating s"stem can react with the metals and

components o# a heating s"stem such as radiators to produce magnetite

(rust) particles& which becomes suspended in "our s"stem water$ %his

process and the build+up o# other chemicals (such as lime scale) can 7uickl"

cause blockages and damage ke" components within the boiler and s"stem$

%o pre'ent this a process o# thorough s"stem ushing should take place

when !tting a new boiler onto an old heating s"stem$ %his process in'ol'es

#orcing old s"stem water out o# the heating s"stem& whilst simultaneousl"

!ltering the s"stem until all o# the old water and contaminants are remo'ed$

Ainall" inhibitor and a s"stem !lter is added to pre'ent an" #uture sludge and

contaminants #rom building up$


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Term Definition

%9.

,eather ompensation

%hermostatic 9adiator .al'es (%9.2s) enable "ou to control the indi'idual

temperature o# each room in "our home& and can be ad8usted to the

com#ort le'els "ou want$ %he higher the number selected on the %9.& the

hotter the radiator and warmer the room$ Please note a %9. should not be

!tted on a radiator in the same room as a room thermostat$

,eather ompensation is a #eature which is programmed into selected

boiler controls and @reenstar 4 ombi boilers$ Designed to impro'e com#ort&

the #eature automaticall" ad8usts the temperature o# "our s"stem to

compensate #or the weather outside$ E$g$ i# the temperature outside drops&

"our radiators will run hotter& whilst i# the temperature increases the boiler

produce less heat& reducing "our running costs$


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@et #ree 7uotes and ad'ice

Aind a local installer

Each heating s"stem needs custom designing$ B" using the search #eature& "ou can !nd and contact a ,orcester

ccredited 4nstaller (https*//www$worcester+bosch$co$uk/how+to+bu") in "our area to book a home 'isit$

#ter calculating the best s"stem #or "our home& "our installer (https*//www$worcester+bosch$co$uk/how+to+bu") wil

then come and 'isit "ou at home to assess "our heating and hot water needs and gi'e "ou a #ree estimate$

6earch

ontact one o# our installers and be in with a chance to win


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team on ;KK; =GK :KK:$


types of boilers explained _ worcester, bosch group

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