Installing Pipe Thermostat for pump.

johneym

Hi Folks,

Have a few issues here an after the expensive plumber I had the other day I am not keen to get him or anyone else back for now as I cannot afford it.
All help much appreciated.

1 does the pipe thermostat go on the inflow to the stove boiler or the outflow. (top or bottom pipe)
The pump is already installed on the bottom pipe.
2 If it goes on the bottom pipe, does it need to be between the pump and stove or the other side of the pump.
3 What temperture should it be set between?

Does anyone know where I can buy a pipe stat in Galway an how much they cost?

mazthespark

pump is usually on the return to the stove afaik (please correct if im wrong) pipe stat would go on the flow as close as possible to the stove. should be able to get on in any plumbing or electrical wholesalers. imit (orange in colour) are a pretty good one have had troulbe with other brands before

danjo

mazthespark wrote: »

pipe stat would go on the flow as close as possible to the stove. should be able to get on in any plumbing or electrical wholesalers. imit (orange in colour) are a pretty good one have had troulbe with other brands before

mazthespark,
just wondering why you would not put it on the return? When the temperature on the return rises this would mean that all rads had warmed up whereas "on the flow" you are just controlling temp of water directly from boiler.
I am not contadicting you, just asking for information. Maybe I misunderstand the purpose of the pipe stat.

danjo

mazthespark

well my reasoning would be once the water leaving the boiler is at x temperature the stat will bring on the pump and continue to keep it running until the water leaving the boiler has dropped below the x temperature as set on the pipe stat.

danjo

Ah thanks. Now I see it. Thanks for the info.

seensensee

johneym wrote: »

Hi Folks,

Have a few issues here an after the expensive plumber I had the other day I am not keen to get him or anyone else back for now as I cannot afford it.
All help much appreciated.

1 does the pipe thermostat go on the inflow to the stove boiler or the outflow. (top or bottom pipe)
The pump is already installed on the bottom pipe.
2 If it goes on the bottom pipe, does it need to be between the pump and stove or the other side of the pump.
3 What temperture should it be set between?

Does anyone know where I can buy a pipe stat in Galway an how much they cost?

Boilers have an integral position in which to locate a thermostat. what did the expensive plumber do?

Carlow52

seensensee wrote: »

Boilers have an integral position in which to locate a thermostat. what did the expensive plumber do?

The problem here is that the OP has posted bits of information across a number of posts so the expensive plumber is not boiler related.

In passing I suspect it is a solid fuel stove but dont have time to be going back and forth across the different posts

johneym

Folks,

thanks a lot for the replies and sorry for the confusion.

I had a few seperate questios an thought it better to keep them seperate for the correct headings.
For your info it is an oil fuel stove at the moment but I intend to change it soon to a solid fuel.
As for the expensive plumber, he would not touch the stove or anything to do with it. He said first I had to get an electrician to install the stat. ( even though the pump had a manual switch and for the sake of checking it out he could have used that)

Thanks for the help...does it make a difference wheather its solid or oil?

seensensee

Bit of a confusing thread, as I previously stated there is an integral position for a stat sensor on an oil boiler which is connected to the stat switch. A pump will switch on independent of the thermostat setting but the boiler won't fire up unless the thermostat is satisfied one way or the other.

what exactly is the problem,what are you trying to achieve ?

my guess would be a sensor refit without the drain down

seensensee

Think about it... you could attach a stat sensor to the return pipe (lower connection) but where do you intend to connect the sensor to?

mazthespark

its a stove not a boiler. pipe stat is placed on the flow from the stove to switch on and off the circulating pump for the stove

Micky Dolenz

Sounds like he is looking to activate the pump automatically, so fit the stat on the flow pipe as close as possible to stove. the stove will be lit and shortly afterwards the pump will kick in, keep the temperature setting on the stat low, around 30d.

johneym

folks,

I appreciate the replies an thanks for your efforts

John

kscobie

yeah, stat on the flow, but set at 50 deg C, lets the cylinder heat before pumping to the rads, walshs on tuam rd, dpl or buckleys would have a stat

seensensee

mazthespark wrote: »

its a stove not a boiler. pipe stat is placed on the flow from the stove to switch on and off the circulating pump for the stove

ah, stove as in a aga, stanley backboilers ect, good thread, I'm learning stuff again :o:o

brici

kscobie wrote: »

yeah, stat on the flow, but set at 50 deg C, lets the cylinder heat before pumping to the rads, walshs on tuam rd, dpl or buckleys would have a stat

My pipestat was on the flow at the cylinder, but I found that didn't heat the cylinder properly before switching on so I moved it to the return (at the cyl) & set it to 55deg's so the rad pump stops when my hot water goes below that. Is there something wrong with my reasoning, because it seems to work?

Sparkpea

brici wrote: »

My pipestat was on the flow at the cylinder, but I found that didn't heat the cylinder properly before switching on so I moved it to the return (at the cyl) & set it to 55deg's so the rad pump stops when my hot water goes below that. Is there something wrong with my reasoning, because it seems to work?

thats how I would do it, when the cylinder is hot enough (then the return from the cylinder will be hot) so stat fitted to that to bring on the pump to heat the rads so the cylinder doesn't boil

tm2204

I've just recently replaced the pump on my solid fuel backboiler to start using it to heat water/rads.

I have a thermostat on the feed pipe from the backboiler but even if I set it really low (just above off even) the pump kicks in when I have it switched on at the socket switch. If I actually turn off the thermostat dial completely off the pump does switch off so i think wiring is ok.

Is this just a simple case of a faulty (old) thermostat?


Cheers

aujopimur

If you have gravity to the cyl.put the stat on the return, if its pumped put it on the flow.

Billy Bunting

tm2204 wrote: »

I've just recently replaced the pump on my solid fuel backboiler to start using it to heat water/rads.

I have a thermostat on the feed pipe from the backboiler but even if I set it really low (just above off even) the pump kicks in when I have it switched on at the socket switch. If I actually turn off the thermostat dial completely off the pump does switch off so i think wiring is ok.

Is this just a simple case of a faulty (old) thermostat?


Cheers

Can't be sure but from your explanasion it sounds like you have the wiring the wrong way round.

tm2204

Billy Bunting wrote: »

Can't be sure but from your explanasion it sounds like you have the wiring the wrong way round.

Yeah, I thought that myself

When I went to set this up (been living in house for years but never used backboiler till recently)

(a) pump was knackerd so just replaced that

(a) one of the wires (the one going to pump) inside the thermostat had come loose so I connected it back. There are 2 free terminals so possibly I connected to wrong one :o

Would that cause this to happen?

tm2204

aujopimur wrote: »

If you have gravity to the cyl.put the stat on the return, if its pumped put it on the flow.

Thermostat was already in place on the feed/flow pipe. Hot water cylinder is directly beside the pump & backboiler flow/return pipes in the hotpress.

Billy Bunting

tm2204 wrote: »

Yeah, I thought that myself

When I went to set this up (been living in house for years but never used backboiler till recently)

(a) pump was knackerd so just replaced that

(a) one of the wires (the one going to pump) inside the thermostat had come loose so I connected it back. There are 2 free terminals so possibly I connected to wrong one :o

Would that cause this to happen?

Yes.

tm2204

What is the recommended (normal) setting to put your thermostat at? How hot should water in backboiler get before you allow pump to kick in?

Billy Bunting

55, or there abouts.