Adding new radiator to heating system

[Ben-gee]

Ian it may be wise to phone a local plumber and explain what you want to do, pay him £30 to come and look at your system and point you in the right direction.

I have done this for people in the past, I like it when people try to help themselves rather than just get someone in for every little job.

Then you have someone who’s seen it on your side if you get stuck ( no reason you will), and if the worst comes to the worst they can sort it for you.

Good luck

 

[Ric2013]

Ian it may be wise to phone a local plumber and explain what you want to do, pay him £30 to come and look at your system and point you in the right direction.

I have done this for people in the past, I like it when people try to help themselves rather than just get someone in for every little job.

Then you have someone who’s seen it on your side if you get stuck ( no reason you will), and if the worst comes to the worst they can sort it for you.

Good luck

My first hour's £45.00, but not a bad idea otherwise. The OP seems to be researching how a heating system is plumbed and may be able to work out if it's S plan or Y plan (or C, W, etc plan), but some people are able to look at a mess of pipework and make sense of it and others really struggle. But obviously it's easier to identify if you do this every day.

 

[Ian Auckland]

Can you t off from any other local rad?

 

[Ian Auckland]

Does said pipes get hot when the hot water is on ?

Both pipes are cold when hot water is called for, so are these part of the central heating circuit?

 

[Deleted member 32524]

Are you sure they are heating pipes and not water. Where are your port valve/s? Near tank or pump? Brass body with a wee box on top. This will give you a better idea.

 

[Harvest Fields]

My first hour's £45.00, but not a bad idea otherwise. The OP seems to be researching how a heating system is plumbed and may be able to work out if it's S plan or Y plan (or C, W, etc plan), but some people are able to look at a mess of pipework and make sense of it and others really struggle. But obviously it's easier to identify if you do this every day.

Are you Plumbing only?

 

[Ian Auckland]

Are you sure they are heating pipes and not water. Where are your port valve/s? Near tank or pump? Brass body with a wee box on top. This will give you a better idea.

They certainly were not

Are you sure they are heating pipes and not water. Where are your port valve/s? Near tank or pump? Brass body with a wee box on top. This will give you a better idea.

There was no heat to them when the hot water was on. I will take some pics tomorrow and up load.

 

[ShaunCorbs]

That’s good least you know now

 

[Ian Auckland]

That’s good least you know now

Those pipes run I to the top of the boiler if that makes any difference?

If I am confident they are heating pipes only can I now tee off these?

 

[ShaunCorbs]

If your confident yes just need to make sure you connect them up right if your fitting trvs eg flow to trv etc

 

[Ian Auckland]

If your confident yes just need to make sure you connect them up right if your fitting trvs eg flow to trv etc

Ok thanks. These are the only two pipes I see entering the boiler, so would the hot water circuit be diverted from these two heating lines rather than these being hot water pipes and being diverted to the heating circuit?

 

[ShaunCorbs]

Pic of boiler please and said pipes

 

[Harvest Fields]

Pic of boiler please and said pipes

Thought you was going to bed? Go away and dream Of sheep you welsh person

 

[Ian Auckland]

Pic of boiler please and said pipes

 

[Burger]

.

 

[Harvest Fields]

.

Enough said mate. I agree

 

[ShaunCorbs]

That’s a Combi Boiler so yes them pipes you’ve found are correct

 

[Burger]

That’s a Combi Boiler so yes them pipes you’ve found are correct

That’s what I thought but look at the photo underneath, no hot and cold, so just fed to cylinder?

 

[Ian Auckland]

It looks as those

That’s a Combi Boiler so yes them pipes you’ve found are correct

It doesnt work like a combi, we only get hotwater if we set the timer on the side so it's not heated direct of the boiler.

 

[Ian Auckland]

There is a header tank in the loft and cylinder underneath on the 1st floor. We can still get hotwater is the boiler is off we use the switch next to the cylinder.

 

[Harvest Fields]

That’s a Combi Boiler so yes them pipes you’ve found are correct

Found a charger then??

 

[Ian Auckland]

It looks as tho those two 22mm are fed down back of boiler those valves put on end then teed back off up through the boiler.

 

[Ric2013]

Are you Plumbing only?

Yes. Not gas.

 

[Ian Auckland]

Any more thoughts on what type of system I have here? I assumed it was an open vented type system? There is a header tank in loft with cylinder underneath, but I dont think the boiler heats the water directly as we to set it.er next to the boiler to heat twice a day.

Thanks

 

[Riley]

Can you t off from any other local rad?

Wouldn’t risk it as you run the risk of stealing heat from the existing and ending up with two Luke warm rads

 

[ShaunCorbs]

I’m doubting myself now

So them pipes above the boiler only get hot when you turn the ch on?

They don’t get warm with the hot water ?

 

[ShaunCorbs]

Wouldn’t risk it as you run the risk of stealing heat from the existing and ending up with two Luke warm rads

If it’s 15mm you should be fine aslong as it’s not massive

 

[Riley]

Still risky as likelihood is that rad isn’t sized

 

[Burger]

Still risky as likelihood is that rad isn’t sized

Is it not just a matter of balancing though?

 

[Riley]

Not if the rads are too big for the pipes

 

[Ian Auckland]

I am assuming the two pipes in the photos above flows in and return pipes from the cylinder to the boiler? what is the actual job of the boiler if its not heating hot water direct is just being used as a pump?
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I’m doubting myself now

So them pipes above the boiler only get hot when you turn the ch on?

They don’t get warm with the hot water ?

Hello,

Know they do not get warm with the hot water, I will try with the heating later.

 

[Ric2013]

This is getting silly. Look up diagrams for S plan, C plan, Y plan and W plan and you'll see what I mean below:

The boiler makes hot water which can be fed through radiators or through a heat-exchanger coil inside the hot water cylinder. If the pump is incorporated inside the boiler, then the pump will run when there is no flame but when the system needs heat. Boilers are often run in conditions where the heat requirement is less than the boiler's capacity and so the older boilers used to modify their duty cycle (i.e. they'd switch the gas on and off but keep the water flowing at the right temperature by running the pump). If the pump is not inside the boiler, the boiler may still have control of the pump and be able to switch it on and off.

So a boiler can heat the room or the stored water (and, in many systems, both at once). What you need to find are the sections of pipes that run heated water to and from the radiators but that do not run heated water when only the cylinder is being heated. Look up the 'three tee rule' too. It's actually really simple if you have a logical brain and if not, you'll struggle. It's also really awkward sometimes to manage to follow where the pipes go and what they are doing when nothing's labelled and half of it is hidden, or when the system hobbles along but is fundementally incorrect (which is more common than it should be).