Boilers?
#1
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Boilers?
Need some help, gota put central heating into my house i just bought, but there's so many boilers i not sure. Just thought i go get a combi and bob's your uncle!
There's no central heating in the house at the mo so need it to heat that, heat hot water, theres no room for a hot water tank, but i want constant hot water dont want to be having a shower and someone's turn tap on down stair's and next thing you no its a cold shower, heard but mega flows not sure what they do!
Any help??
There's no central heating in the house at the mo so need it to heat that, heat hot water, theres no room for a hot water tank, but i want constant hot water dont want to be having a shower and someone's turn tap on down stair's and next thing you no its a cold shower, heard but mega flows not sure what they do!
Any help??
#2
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yeh you need to measure how many litres per min, turn everything on(well within reason) and measure it.
where is the boiler?
im sure there some people on here that now quite a bit about boilers , i would go for a condensing combi that produces its own hot water with something like a 50l tank, you will heat hot water in no time.
where is the boiler?
im sure there some people on here that now quite a bit about boilers , i would go for a condensing combi that produces its own hot water with something like a 50l tank, you will heat hot water in no time.
#4
3dr Cosworth owner
Ive just had the very same done as your asking about. A house with nothing in. We used a Glowworm Flexico 30 cx condensing Combi boiler.
Its very quiet, really quick and simple to use. A Rated energy efficiency and the smallest physical size avaliable so it will fit in a standard 400 mm cupboard.
the reason we used that particular one os the fact it is rear venting so we could have it in the floor level cupboard and not on show as our wall ounted units arent the conventional shape.
Its very quiet, really quick and simple to use. A Rated energy efficiency and the smallest physical size avaliable so it will fit in a standard 400 mm cupboard.
the reason we used that particular one os the fact it is rear venting so we could have it in the floor level cupboard and not on show as our wall ounted units arent the conventional shape.
#5
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Combi boilers aren't too good for running showers and won't do baths. You'd have to get an electric shower. Condensing boilers are most efficient when used with radiant heat ie underfloor heating/wall heating. When used with rads they basically use the same fuel as a standard boiler.
#6
Have a look on here: http://www.diynot.com/forums/viewfor...56b9bf4dd91cfb
They can help loads on deciding what to get. If your having a combi it now has to be a condensing type, you will have to get a room stat and trv's on all your radiators. Go for one with a flow around 20L per min otherwise it will take ages to fill a bath. Not many cobis can run two taps at once, you need a thermostatic shower so you wont get burned when someone turns on a tap while your in the shower. Find one with a tank built inside it, that way hot water is nearer instant. Dont expect the water to be really hot when running a bath, combis raise the temp to about 40 degrees while a tank system gets to 60 degrees.
They can help loads on deciding what to get. If your having a combi it now has to be a condensing type, you will have to get a room stat and trv's on all your radiators. Go for one with a flow around 20L per min otherwise it will take ages to fill a bath. Not many cobis can run two taps at once, you need a thermostatic shower so you wont get burned when someone turns on a tap while your in the shower. Find one with a tank built inside it, that way hot water is nearer instant. Dont expect the water to be really hot when running a bath, combis raise the temp to about 40 degrees while a tank system gets to 60 degrees.
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#11
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Jesus, keep your fookin hair on!! OK prob should've put the word effectively after "baths". You guys who find you have a good system with the combi for bathroom/en suite/WC prob have a storage combi or else about 8bar in the mains. Can't see how you'd get a good supply from a 3/4" bath tap fed by a 1/2" supply otherwise. And I'd be surprised if you get much more than 5 years from the boiler. If your drawing off 30gls of hot water you ain't getting any heat to your rads as the hot water gets priority. Personally i wouldn't fit them anywhere other than an apartment or small dwelling. IMO cant beat pumped storage and a pressurised cylinder. Then you'll get a good hotel style shower!!
#14
from your first post you say you want hot water, you don't want it to die if someone turns the tap elsewhere. therefore imo a combi is out of the question unless like has been stated you have mega pressure, down where i live your lucky to get 2 bar so a tank is needed
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#18
Testing the future
the point with combi's and baths is that often bath taps flow more water than the combi boiler can properly heat. not a problem, just don't turn the hot tap on full
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#24
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i fit a glow worn 30cxi to my mums house, it feeds 12 rads, and an old victorian cast roll top bath that takes ages to fill coz of its size but once you get in you come out a lobster, mega boiler though!, and suprisingly easy to fit c/h im only a mechanic but hey its not rocket science!
#26
Testing the future
piece of piss to fit - officially you just need a CORGI registered geezer to connect the gas (but that is not rocket science either)
but there's more to it than that. a good plumber has the skills to size the boiler properly in the first place etc
but there's more to it than that. a good plumber has the skills to size the boiler properly in the first place etc
#27
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Just read up bout this boiler sounds like what im after, do they have a good supply of hot water then, prob be heating 10-12 radiators as well hot water! Prob gonna have to bathrooms both with shower's(maybe only 1 shower yet), one with a bath!
#28
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Is this one any good as i get %20 off at B & Q ? How many KW or BTU do you need for a normal sizes semi , how much is it to fit a boiler only as mines getting changed ? dont need rads etc
http://www.diy.com/diy/jsp/bq/nav/na...&isSearch=true
http://www.diy.com/diy/jsp/bq/nav/na...&isSearch=true
#29
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its easy to find out what size rads you need, there is a way to determin what btu rad you need per room, add them all up, then you know what size btu boiler you need,
#31
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There is a calculator for this. What determines it is room size inc height of ceilings. Type of floor, concrete timber or otherwise. Number of outside walls. Your plumbing supplier should work it out for you if they're any good.
#32
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just do a search for btu calculator in google and fire away, also try the likes of mrcentralheating.com sometimes can be competetitive for complete packages ie pipe work rads and a boiler for under Ł800 (obvious for the cheepest)
#33
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If it's a larger, older house with quite a large heat load you could also go for micro CHP and generate some eelectricity at the same time..........
#36
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There's no mains gas here but a neighbour has an electric boiler. Anything to be aware of with these?
He gets much lower bills than me with my storage heaters which we don't like so I'm tempted to change but don't want a oil or gas tank outside.
He gets much lower bills than me with my storage heaters which we don't like so I'm tempted to change but don't want a oil or gas tank outside.
#37
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i just had a worchster bosch 42cdi fitted a couple of weeks ago, very happy with it and the shower (mira excel) is almost painful if you turn it up full blast, fills the bath quick enough but not as fast as my old storage system...but you never run out of hot water either
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