2nd fix Central Heating

typeractive

Hi all,

Think I have (eventually) got a decent plumber! One that has checked the pipework over and measured the rates!

So he's been quoting and if I want the Drayton valves I'm best off buying them online to get them cheaper. I've found some well priced ones. I need 10, and also a 'bypass' valve / this will be the radiator without a trv. Does that sound right? If so - what do I need to buy?! I want to keep it chrome if possible. Is bypass the right thing I'm searching for?

Cheers
:j

heating-eng

typeractive wrote: »

Hi all,

Think I have (eventually) got a decent plumber! One that has checked the pipework over and measured the rates!

So he's been quoting and if I want the Drayton valves I'm best off buying them online to get them cheaper. I've found some well priced ones. I need 10, and also a 'bypass' valve / this will be the radiator without a trv. Does that sound right? If so - what do I need to buy?! I want to keep it chrome if possible. Is bypass the right thing I'm searching for?

Cheers
:j

Sounds good.

caleyles

Are you sure he is not asking you to get a bypass valve like this - we always fit these which enables TRVs to be fitted to all radiators allowing temperature control in each area, Having a rad without one is a very out dated idea now. We also always use Danfoss Trvs a bit dearer but excellent.

http://www.google.co.uk/products/catalog?q=automatic+bypass+valve&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&tbm=shop&cid=11089682859496088472&sa=X&ei=Yeh8TpyJF8SW8QOWq82LAQ&ved=0CDIQ8wIwAA

heating-eng

caleyles wrote: »

Are you sure he is not asking you to get a bypass valve like this - we always fit these which enables TRVs to be fitted to all radiators allowing temperature control in each area, Having a rad without one is a very out dated idea now. We also always use Danfoss Trvs a bit dearer but excellent.

http://www.google.co.uk/products/catalog?q=automatic+bypass+valve&oe=utf-8&rls=org.mozilla:en-US:official&client=firefox-a&um=1&ie=UTF-8&tbm=shop&cid=11089682859496088472&sa=X&ei=Yeh8TpyJF8SW8QOWq82LAQ&ved=0CDIQ8wIwAA

Nothing wrong with using a rad as a bypass in my opinion.
Although some manafactures do require a separate auto bypass.

typeractive

Thank you both! I think I understand most of the kit, with the exception of the bypass valve! My thoughts were that each radiator had the TRVs, and then one radiator didn't.

So. I have a few more questions.

1. let's say I go for the old method, as described above, what 'valves' do I need? And how many? I can only assume I will need two items, one for each end of the rad.

2. if it's a more modern measure, I'll happily go for something as described in your link. I had done a quick search for bypass valves earlier, and these things did pop up, but it's the first time I've seen them. If I buy one of these, do I need a kit, or the other piece that goes on the other side of the rad - does that make sense?

//Edit: or does the radiator with the bypass allocated it, still need a TRV, just the lockshield end is replaces with the bypass?

As for Danfoss TRV's I'll go and have a look at them, but I'm already pushing the boat out on the Draytons (well I think so).

Thanks very much for the help guys. I'm usually ok at figuring stuff out, but not sure if I'm using the exact right search criteria etc. The last thing I want to do is buy all these valves and be short of something that's going to muck the day up - though they are considerably cheaper online!!

Cheers!!

heating-eng

typeractive wrote: »

Thank you both! I think I understand most of the kit, with the exception of the bypass valve! My thoughts were that each radiator had the TRVs, and then one radiator didn't.

So. I have a few more questions.

1. let's say I go for the old method, as described above, what 'valves' do I need? And how many? I can only assume I will need two items, one for each end of the rad.

2. if it's a more modern measure, I'll happily go for something as described in your link. I had done a quick search for bypass valves earlier, and these things did pop up, but it's the first time I've seen them. If I buy one of these, do I need a kit, or the other piece that goes on the other side of the rad - does that make sense?

//Edit: or does the radiator with the bypass allocated it, still need a TRV, just the lockshield end is replaces with the bypass?

As for Danfoss TRV's I'll go and have a look at them, but I'm already pushing the boat out on the Draytons (well I think so).

Thanks very much for the help guys. I'm usually ok at figuring stuff out, but not sure if I'm using the exact right search criteria etc. The last thing I want to do is buy all these valves and be short of something that's going to muck the day up - though they are considerably cheaper online!!

Cheers!!

2 of these

http://www.ebay.co.uk/itm/BOLU-Chrome-Angled-Lockshield-Radiator-Valves-Taps-NEW-/190439471053?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item2c5713b7cd#ht_3149wt_900

typeractive

heating-eng wrote: »

2 of these

http://www.ebay.co.uk/itm/BOLU-Chrome-Angled-Lockshield-Radiator-Valves-Taps-NEW-/190439471053?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item2c5713b7cd#ht_3149wt_900

Hi Heat-eng! Speedy reply!

So that's the conventional route, as you mentioned and what I envisaged.

Before I buy I want to see what the automatic bypass valve is all about too. I don't mind spending a few pounds extra if it's going to be 'better' (or perhaps I should say more modern) technology.

Do you know much about these?

heating-eng

typeractive wrote: »

Hi Heat-eng! Speedy reply!

So that's the conventional route, as you mentioned and what I envisaged.

Before I buy I want to see what the automatic bypass valve is all about too. I don't mind spending a few pounds extra if it's going to be 'better' (or perhaps I should say more modern) technology.

Do you know much about these?

Some manufactures say you need them as there boiler do not have a bypass built in. Some manufactures say ther boilers have it built in.
Check with your installer and see if the boiler you are fitting requires one.
If not then leaving the bathroom rad open with the lock shield valves will work just as good.
The other person said to fit TRV,s on all the rads ,this is in correct information.
You need to have a room thermostat fitted and in that room you wouldn't fit a TRV.
So in that case you would have 2 rads with standard lock shields on.
Plenty of bypass there.

typeractive

This was my original plan with the 1st plumber I had. Then as far as I remember each and every other installer has said the same?:

Attic
Master bedroom
En-suite bathroom
Bed 2
Bed 3
Landing
Bathroom
Hallway (where the bypass would go), thermostat probably out here.
Vestubile
Living room
Dining room
Kitchen
Garage. (just the normal lockshields on / so another bypass?)

So TRV's with the lockshields in each of those rooms except the hallway and the garage. The boiler I'm going for is the Broag Remeha 39.

Am I confusing everyone or just myself? lol :rotfl::rotfl:

heating-eng

typeractive wrote: »

This was my original plan with the 1st plumber I had. Then as far as I remember each and every other installer has said the same?:

Attic
Master bedroom
En-suite bathroom
Bed 2
Bed 3
Landing
Bathroom
Hallway (where the bypass would go), thermostat probably out here.
Vestubile
Living room
Dining room
Kitchen
Garage. (just the normal lockshields on / so another bypass?)

So TRV's with the lockshields in each of those rooms except the hallway and the garage. The boiler I'm going for is the Broag Remeha 39.

Am I confusing everyone or just myself? lol :rotfl::rotfl:

I don't think you need an extra bypass but you need to check the boiler instructions.
The lock shields needs to be the ones with caps on ,not were you can turn them on and off.