The accumulator effect in the larger air gap is only a couple of seconds, so can't really be factored in a purchasing decision!
The volume vs heat loss argument is only valid for a given grade of insulation, and of course some cylinders are better insulated than others.
Tony you really are annoying.
quote - Its 50 litres per person as the rule of thumb! Ideally plus 50 litres extra !
so in a one bed flat with one person living there, you think 100l is plenty, they may have a big bath, fill that up then want to use the shower whilst in it for say washing down and washing hair. what about them there partner stays one night and they both want a shower? don't be such a t@sser all your life.
What a lot of possibly wrong answers!
The capacity of the cylinder depends on the number of PEOPLE who normally live there.
Its 50 litres per person as the rule of thumb! Ideally plus 50 litres extra !
We are told that "He can work computers, so I am having to help, thanks." In that case one wonders why he is not asking the questions himself.
As always, the best advice is from the qualified installer who is going to fit it ( and be responsible for his design advice! ).
Tony
The house is a 3 bedroom (2 double and 1 single) with 1 bathroom (containing a large bath and a shower cubicle) and
1 en-suite (containing a shower)
jon 26 wrote
The house is a 3 bedroom (2 double and 1 single) with 1 bathroom (containing a large bath and a shower cubicle) and
1 en-suite (containing a shower)
G4U was spot on earlier.
170/L.
Just ordered a CL170HE,
Cheers guys
Even if 5 people are living in the property 170/L is ample.
Its a single bathroom property and most people having a bath will spend at least 30 minutes in there giving sufficient time for the cylinder to recover.
With an 18 kw coil that shouldn't be too long.
The chances off a number of people using the en-suite shower will be slim.
Just ordered a CL170HE,
Cheers guys
Thats interesting that you have ordered a cylinder when its for "your mates house"!
It sounds to me is if its you who are going to fit it even though you are presumably not qualified and will not be able to notify the installation to the Building Control.
If there were really five people living there then I would discuss the size with the owner and suggest a 300 li if their usage is high or 210 li if its lower. There is little incremental cost of a larger cylinder and an advantage if hot water never runs out.
Tony
Just out of interest what would you recommend for a 4/5 bed, 3 bath and single shower property ?.
Megaflo, ACV, Excelsior,OSO , Range recommend between 250/L and 330/L !.
Yes Agile, if you would spec a 250 or 300 litre for a 3 bed house 1 bath and 1 shower, I bet you would also spec a similar size cylinder for a 4/5 bed, 3 bath and single shower property too? Dosent make sense.
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