Hot Water Systems
 

Advice please, do Spanish plumbing systems normally have the hot water tank directly fed from the main?

Problem we are having is the tank is venting when the water gets hot which wouldnt happen in the Uk where there would be a tank reducing the pressure from the main.

Are there any circuit diagrams online showing how these systems are normally plumbed ?

thanks

Re: Hot Water Systems
 

This any good?

http://www.google.es/search?q=hot+wa...w=1024&bih=497

Re: Hot Water Systems
 

Must be a while since you lived in the UK?:nod:

FYI: http://www.boilerguide.co.uk/article...eating-systems

Re: Hot Water Systems
 

Thank you mouse, its a start I suppose, the (electric) heater is in the basement, fed from direct water main from street, keeps boiling over and flooding basement. can't get my head round a system without a tank to calm down the pressure, but then I suppose it wouldnt have the pressure to feed the grnd and 1str floor bathrooms.

the landlord says they don't fit timers on it either, so its either on or off dependent on whether or not we go down to the basement to switch on\off

won't be able to see it for a couple ofweeks but its driving the BH nuts at the moment.

rgds

Re: Hot Water Systems
 

i am in the uk as I type, and we have a tank tween the mains and the hot water cylinder. Which is fairly standard.
I note that both the systems shown in your reference are for central heating not for hot water system but both have a tank.........

Re: Hot Water Systems
 

Our electric heated tank is feed from the mains (as most are here), when it reaches a set temperature it stops heating and will remain static until the temperature falls, or you demand water, when the cycle starts again.
No drips/leaks etc and there should not be any either (to my mind) unless the internal thermostat becomes faulty when I guess it will heat the water so much it reaches boiling point and will attempt to exit as yours is doing.

Or you simply have a leak. ;)

Re: Hot Water Systems
 

There are three systems described in my link.
â– A combi boiler heats water on demand requiring no tanks
â– High pressure systems
These systems supply mains pressure hot water
â– Conentional Gravity Fed systems often comes from a feed tank or expansion tank

In the UK (and spain) modern systems are fed from the mains. Only the older gravity fed heating systems require a storage tank.

Re: Hot Water Systems
 

Turn the thermostat down and see if it shuts down, perhaps it needs replacing.
Also you could buy a timer plugin and put between the supply and the water heater.

Re: Hot Water Systems
 

Thanks for the responses, this is the first time we have encountered a direct system - despite the protestations, there are millions of in-direct systems in the UK and they are all we have ever encountered.

Remember, I am in uk and BH is Spain where the system is, so at the moment I am trying to solve a problem I cannot see and touch.

it is a new house, new system and the landlord left the system on max temp.
It has been turned down twice and still overflows (vents).
BH asked landlord to fit a timer but he said "No, thats not what we do".

One thing I have noted is that the UK requires regular checks of these pressurised systems - is that the same in the UK or is it a thing no one worries about ?

Re: Hot Water Systems
 

The concept of 'Health and Safety' doesn't really seem to exist in Spain.

They make feeble attempts at it, but when push comes to shove, it gets ignored!

Re: Hot Water Systems
 

and yet despite that the headquarters of all EU H&S is at ......

European Agency for Safety and Health at Work
Gran Via 33
E-48009 Bilbao, Spain
Tel: + 34 944-794-360
Fax: + 34 944-794-383
Web: http://osha.europa.eu

Re: Hot Water Systems
 

A bit off the subject but in the same vein. I need to replace my outdoor gas water heater and have found a few advertised and offering different size/capacity of 5ltr / 10ltr as Iam not in Spain until the weekend anyone any idea what capacity I should be looking for. 3 Bedrooms, 2 Bathrooms, Kitchen, Living room, Dinning room. Thanks Stuart.

Re: Hot Water Systems
 

I know your not out there - but that is my problem as well - but you need to know what size the existing heater is.
a 10l may not fit in the gap of a 5l ...
:eek:

even getting someone (?) to take the physical measurements would help you

rgds

Re: Hot Water Systems
 

Will do, but their is plenty of space around the original one.

Re: Hot Water Systems
 

In that case at least an 11ltr item as that is the max it will supply, I went for a Bosch (Junkers here in Spain) 18ltr and would have had the 21 if it was in stock at the time.