bleeding rads in your house

[angellonewolf]

ive always blead the rad when the heating is off looking on line is this right or when its on ?

looking on line seams the have conflicting feed back
off but hot (after all rads are up to temp)
on and running (some say no ass it can add more air than remove?)
before heating is turned on?

 

[Kayos]

Correct procedure is heating off, with the system cold, if they bleed fine do it that way.

I sometimes fire a boiler or run the pump on difficult systems

 

[angellonewolf]

Ok will do a on bleed then as had problem with the rad in the front room for the last few years all the others are fine but the rad in the front room pops and gurgles are if that helps

 

[Kayos]

Turn all the other rads off, just one valve, then run the heating for a bit. Let it cool down and then bleed that one

 

[Ashley Burton]

I took one of my rads off when it wasn't working. Flushed all the muck out of it. Bled it & hey presto she was running hot again!

 

[angellonewolf]

Turn all the other rads off, just one valve, then run the heating for a bit. Let it cool down and then bleed that one

thanks will try that any other rad in the hose would not bother me but the one in the front room is behind where we both sit and it does not do it much just for 10 mins on start up and then every 1.5 hours a little gulp or sutch but its hard to ignore

I took one of my rads off when it wasn't working. Flushed all the muck out of it. Bled it & hey presto she was running hot again!

all the rads in the house and 90 percent of the pipe work has been replaced in the last 3 years as ive been doing each room and then all down staires got done in one hit and as done new rads in all rooms all new thurmastats as well as new rads are way more efficent than the 1970 rads that where in the house the main problem in the house the upstairs was heating up way quicker than the down the heat goes upstairs first and down after but the pipe work down was only 15mm all round downstairs ive removed all of it run 22mm all the way through and come off in 15 to rads the rads warm up much quicker now originaly did try to blance the system but it had an effect but way more when i changed all the pipe work

the system is clean as well i had a fernox tf1 installed when the boiler was fitted and when in the first 3 months i cleaned it every few weeks now i clean it 6 monthly(been 4 years boiler and 3 years since i changed all the pipes rads) but the stuff that comes out theres hardly nothing in it

 

[jsf55]

Have you tried reducing the flow into to each of the upstairs rads ?

 

[angellonewolf]

Have you tried reducing the flow into to each of the upstairs rads ?

yea ballanced the system after i installed it after a couple of weeks after it settled down

 

[mike os]

Off and cold, if it won't bleed then on and cold

 

[123hotchef]

well another school day I have nearly always bleed them hot at home unless I have done some work on them

 

[waddycall]

What Kayos said. If that doesn’t work try different radiators one at a time with the others off. You need to focus the pump pressure on the pipework where you think the air is and force it into a radiator where it can settle out at the top.
If you have a modulating pump you could put it into manual/maximum otherwise it will slow down as you close radiators.

 

[gaz1]

bleed off and cold i set it on a mark after bleeding then can keep an eye on the level of water

gurgerling/bubberling is a sign of air in the system can be created by the cold water going into the system

 

[Nick DV]

Always off and cold. I'm assuming that this is a sealed system, so before you bleed the system make sure the pressure is good, and when you have bled the system, make sure that you recharge the pressure to it should be, around 1.0 bar, run the system to make sure everything settles down ok

 

[angellonewolf]

What Kayos said. If that doesn’t work try different radiators one at a time with the others off. You need to focus the pump pressure on the pipework where you think the air is and force it into a radiator where it can settle out at the top.
If you have a modulating pump you could put it into manual/maximum otherwise it will slow down as you close radiators.

how would i cheak that i think the pump is in the boiler

 

[gaz1]

its a grey area to lift the front off just to look for a pump or look for leaks on a system

its doing work on those systems thats a problem

 

[angellonewolf]

yea im not one to break rules when it comes to gas the boiler is only a few years old and had i cheaked every year even the bloke said when he tested it last year it tends to need a little ajustment after a few years to keep it runnning at the normal settings but he said mine is spot on and its never needed ajustment

 

[waddycall]

how would i cheak that i think the pump is in the boiler

Pump speed could be controlled by the boiler so probably best left.

 

[maz0]

Lol just bleed the damn thing. 1.5 bar of pressure behind the air bubble, its coming out if the waters hot or cold

 

[angellonewolf]

Lol just bleed the damn thing. 1.5 bar of pressure behind the air bubble, its coming out if the waters hot or cold

https://media1.tenor.com/images/a2cc56eb3405af92ac993ec5da30c02b/tenor.gif

 

[gaz1]

Lol just bleed the damn thing. 1.5 bar of pressure behind the air bubble, its coming out if the waters hot or cold

ive known it not to come out even with that pressure or with 2 bar pressure on it