Difference between revisions of "Domestic Hot Water Systems"
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− | There is a wide and potentially bewildering variety of systems for supplying hot water in houses and flats ('''[[Domestic Hot Water]]''' or "'''DHW'''"). These include | + | [http://anetaspb.50webs.com/content/imedia1.htm imedia 6020] [http://anetaspb.50webs.com/content/edimburgo-alberghi.htm edimburgo alberghi e hotel] [http://starbestfik.50webs.com/topic/severin-cuociuova/ severin cuociuova] [http://iguanalady.50webs.com/aspirapolvere-tracolla.htm aspirapolvere tracolla] [http://kaygigi.50webs.com/articles/volvo-v6/ volvo v70 aut] [http://howquickly.50webs.com/articles/seat-leon2.htm seat leon a torino] [http://exlerrss.50webs.com/text/sorveglianza.htm sorveglianza] [http://brittpach7.50webs.com/text/gambe-donne.htm gambe donne foto] [http://anetaspb.50webs.com/content/emina-jahovic.htm emina jahovic] [http://anetaspb.50webs.com/content/mariachi-serenade.htm mariachi serenade] [http://exlerrss.50webs.com/text/marantz-sinto.htm marantz sinto amplificatori] [http://bookishfellow.50webs.com/new/gioco-di8.htm gioco di coppia] [http://tigerlilly2063.50webs.com/divina-commedia2/ divina commedia capitolo xix purgatorio] 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black edition] [http://zankoaku-zen.freehostia.com/lib/rd1.htm rd 165] [http://junkland-raed.freehostia.com/styles/daddy-yankie.htm daddy yankie] [http://paleshaadow.freehostia.com/text/es-mas.htm es mas com] [http://usverag-ekb.freehostia.com/small/gertude/ gertude] [http://mysteaaricafende.freehostia.com/sexo-libre/ sexo libre] [http://ptisaa-jill.freehostia.com/amd-44/ amd 64 fx agp] [http://ptisaa-jill.freehostia.com/convertitore-mp5/ convertitore mp3 smaf] [http://juli8a.freehostia.com/new/home-theatre57.htm home theatre 6 1] There is a wide and potentially bewildering variety of systems for supplying hot water in houses and flats ('''[[Domestic Hot Water]]''' or "'''DHW'''"). These include |
* Conventional systems with a large tank in the attic and a hot water cylinder | * Conventional systems with a large tank in the attic and a hot water cylinder | ||
* Combi Boilers | * Combi Boilers | ||
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| valign="top"| | | valign="top"| | ||
* Potentially very high rate of supply of hot water. | * Potentially very high rate of supply of hot water. | ||
− | * Can accomodate backup heating (e.g. electric immersion for gas boiler) and multiple heat sources (e.g. solar | + | * Can accomodate backup heating (e.g. electric immersion for gas boiler) and multiple heat sources (e.g. solar gas). |
| valign="top"| | | valign="top"| | ||
* Supply runs cold when stored heat exhausted: takes time to re-heat. | * Supply runs cold when stored heat exhausted: takes time to re-heat. | ||
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| valign="top"| | | valign="top"| | ||
* 'Dry loft': no need for tank in attic. | * 'Dry loft': no need for tank in attic. | ||
− | * Good pressure for showers | + | * Good pressure for showers |
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Revision as of 04:21, 6 October 2007
imedia 6020 edimburgo alberghi e hotel severin cuociuova aspirapolvere tracolla volvo v70 aut seat leon a torino sorveglianza gambe donne foto emina jahovic mariachi serenade marantz sinto amplificatori gioco di coppia divina commedia capitolo xix purgatorio annette stephens cronache di napoli pannelli isolanti tienimi orlando intrattenimento lultima illusione questa nostra gente i giochi piu belli per ps1 le inculate that greatest romance garni in affitto sulle dolomiti video scandalo da scaricare offerte lavoro fotografi bologna friggitrice in acciaio tvtv com per pochi dollari ancora unifrome beauty in darkness vol 7 blank chart nokia oyj fim jbl 200 6 driin driin the interrogation of michael crowe omosessuali nudi cult uomo kyocera 1800 ora unicatt cordial theater hotel vienna settimo cielo nottola auto usata sardegna epson 5900 modulatore fm auto emal srl sexi sexno powermust office una vecchia canzone italiana roma bsx inviti compleanno cavo jvc case in affitto a torino select bay lavoro massa the band from utopia a tribute to the music of frank zappa evviva espagna lei sposata cartina italia politica citta di galloway irlanda dxf maglioni timberland maglieria uomo micro cuffia plou sexy telegiornale schweiz canon 28105 usm archos player ati radeon x propaganda prima guerra mondiale ufficio firenze ray charles canzone su 11 settembre 2001 bando torricella taranto xfx pci jota quest do seu lado department of the air force air force ma beach boys surfin u s a patronato cigl botticcelli emissione garanzie photosmart hp m417 the planetary pamela anderson video porno costa dell oceano atlantico gentlemans agreement la squadra stagione 1 episodio 2 warlock mvx300 canon kria radio roma soluzione alone the dark dire strites cooperativa sociale yakumo amico de filippi www elvis com transport planning service audigy creative canon 500 fellowes ps70 homedepot com dvdo iscan ultra home cinema wireless adobe elements win revolution x offerta portatile orologi sector 150 cronache partite milan davies afjd yeti surf georgia palmas upskirt in tv marron5 this love monitor butterfly 17 scarpa adidas tuscany sex resimleri microdrive 6gb corteconti scarpa calcio adidas cd nick carter cell blck tango andrea palladio e la villa veneta df oliviero beha lavoro lavoro lavoro a way of life it binari erotismo volo rotterdam maglia prada la lunga di marianna ucria vienimi dentro binocoli con zoom lettore mp3 creative zen micro rosa trasferimenti scuola el pato donald fort lauderdale hotel paperino story massimino lippoli todo sobre belinda cosi lontani paul johnson jr beheading approfondimenti del film liberi armati p non per denaro morgan cd musicali palline da golf campeggio la bussola codici sat gratis erositalia dizionari di tedesco wccf gif animata bandiera me fa male i pe spy thomson 42wm03st escolares abit is7 no regresare toner per stampanti sony dcr hc17e bachata firenze galati mamertino the life is benigni ursula andrews desnuda i barkleys di broadway pugni di rabbia zanzariera culle transessuale in caserta www iulm it nch sesso ufficio curvatubi tavolino da campeggio xeryus rouge givenchy dottore z20 minolta spartiti capossela landro valle di mercedes clk 2004 pocket gps king the wall geena le nolin elenco hotel cattolica elettrostimolatore compex fitness un ragazzo la gang dei diamanti masterizzatori dvd black usb 2gb mp3 lettori agenda 2006 lg home divx dvd wireless golf iv 150 v3 black edition rd 165 daddy yankie es mas com gertude sexo libre amd 64 fx agp convertitore mp3 smaf home theatre 6 1 There is a wide and potentially bewildering variety of systems for supplying hot water in houses and flats (Domestic Hot Water or "DHW"). These include
- Conventional systems with a large tank in the attic and a hot water cylinder
- Combi Boilers
- Unvented (e.g. Megaflo)
- Thermal Stores or Heat Banks
- Solar Hot Water systems
- Gas multipoint heaters (like old Ascot types)
and more ....
This document aims to explain the principles underlying the different types and why one would choose one rather than another. In particular the various types of mains pressure systems - unvented and thermal stores/heat banks - becoming increasingly common in the UK are discussed, as are solar and other renewable systems.
This article describes the main features of DHW systems and explains terms used in describing such systems. Further articles will give more details on particular varieties of system, including some hybrid systems combining elements of the basic types discussed here, discussion of some commercial and other systems available, and links to suppliers' web sites and other resources.
Main types of DHW system
The main differences between types of DHW systems are:
- Instantaneously heated e.g. combi boilers, multipoint ('Ascot'-type) instantaneous gas water heaters, instantaneous electric water heaters
versus
- Stored heat e.g. systems with some sort of hot water cylinder
and
- Mains pressure water e.g. combi boilers, unvented ('Megaflow' type) cylinders
versus
- Low pressure with stored water e.g. conventional: tank in attic and hot water cylinder in airing cupboard
The pros and cons of these systems are:
PRO | CON | |
---|---|---|
Instantaneous |
|
|
Stored heat |
|
|
Mains pressure |
|