I have an old boiler

xirokx

xirokx

xirokx

Soldato
Joined
2 Oct 2004
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N.W London
Hi,

So I have an old boiler at the place at which I am renting, there is a min / max dial on the front, what does that mean?

It is currently set in the middle...

Trouble is my radiators are hot but not sizzling hot, just warm and the thermo stat has been on 25deg for the last hour...

What am I missing?

Please help..

Thanks in advance..
 
Turn it up to max?

Also you could try bleeding the rads if you have a little key. They might be full of air and thus don't get hot. But I would suggest turning the dial up a bit.

I have mine set to the middle, but after 15 mins the rads are red hot.
 
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Is the thermostat being affected by ambient temperature?

In other words, is the thermostat near a radiator or in a particularly hot room? It could be tripping the boiler off prematurely :)
 
In other words, is the thermostat near a radiator or in a particularly hot room? It could be tripping the boiler off prematurely
Click to expand...

nope its not affected by ambient temp whatsoever and is away from rads and is in the coldest part of the flat...

i turned up the dial and WOWOWOWOWOW!!!!

its workings..

but what does the dial mean on the boiler?

thanks for all help thus far
 
About 3 weeks ago we decided to spend a bit of cash and upgrade our central heating after 24 years.
We had a new boiler & radiators and we now have a proper heating system that works.
I can't believe how inefficient our old system was even though my gas mate kept telling me.
The other bonus is that our toilet used to take about 10 mins to fill up but now it takes about 30 secs.
For 24 years the common sound of "Don't flush" used to ring out in our house because you knew you had to wait a long time.
 
temp on boiler is what it warms the water to.

The thermostat is what tells it to boil water, it says boil water if I think it's below 25c, it doesn't tell the boiler how warm the water should be.

Often people will set the boiler temperature lower so they can have a low background heat all day round.
 
Telescopi said:
temp on boiler is what it warms the water to.

The thermostat is what tells it to boil water, it says boil water if I think it's below 25c, it doesn't tell the boiler how warm the water should be.

Often people will set the boiler temperature lower so they can have a low background heat all day round.
Click to expand...


Is it cheaper to have a constant low heat, or one or two bursts of rad busting heat in the evenings :cool:
 
KingAdora said:
Is it cheaper to have a constant low heat, or one or two bursts of rad busting heat in the evenings :cool:
Click to expand...

Dunno, many people, myself included, don't like it too hot though, and unless you spend on posh thermostats for each rad it's hard to control temperature per room, hence you have a low(er) water temperature and just whack the thermo up so it's on all the time. Use the timer to say when it comes on.
 
Telescopi said:
Dunno, many people, myself included, don't like it too hot though, and unless you spend on posh thermostats for each rad it's hard to control temperature per room, hence you have a low(er) water temperature and just whack the thermo up so it's on all the time. Use the timer to say when it comes on.
Click to expand...
They're not really that expensive in the grand scale of things. In the years to come they would save you money, you just probably wouldn't appreciate it as you can't really measure it.

Condensing combi' boilers are the most efficient as they only heat the water when you need it. However some people don't like the way you get poor water pressure as you get further away from the boiler. I think some plumbers etc give the impression that you can ONLY buy combi's these days where as in reality you can actually buy a condensing system boiler, which still has a cylinder etc and allows you to have the water constantly heated. They are of course much more efficient than older boilers still though which means cheaper bills. I think the main reason they want to sell more combi boilers is because of how easy they are to install in comparison to a normal boiler with cylinder.
 
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