Thermal store confusion!

[gassafe]

I went to quote a nice straight forward boiler! Just a potty profile to Ri boiler...

all going well until I saw a big thermal store in the airing! I hate the things, they scare me! It's because I am not familiar with them & there operation!

This one had two pumps in the airing, I'm guessing one pumps the f & r from boiler into store, and the other pump would turn on when heating called for to go round rads, back into store!?

The hot water I guess had the coil inside that then just blends through the mixer valve straight out to taps!

It currently has a old potterton twin channel clock, can this be replaced by a drayton twin channel job? When calling for hot water, would it just turn on the one pump & go off on a normal type cyl stat on the store? I am tempted to just not quote the job, but I'm not that busy so would like to be able to offer a quotation!

It had a pipe from the top of the thermal store, would this be the heating vent pipe, I guess the boiler must heat the whole mass of stored water directly, and not thru a coil, otherwise there would have to be two tanks?

Any advice on thermals appreciated!

 

[Gray0689]

I went to quote a nice straight forward boiler! Just a potty profile to Ri boiler...

all going well until I saw a big thermal store in the airing! I hate the things, they scare me! It's because I am not familiar with them & there operation!

This one had two pumps in the airing, I'm guessing one pumps the f & r from boiler into store, and the other pump would turn on when heating called for to go round rads, back into store!?

The hot water I guess had the coil inside that then just blends through the mixer valve straight out to taps!

It currently has a old potterton twin channel clock, can this be replaced by a drayton twin channel job? When calling for hot water, would it just turn on the one pump & go off on a normal type cyl stat on the store? I am tempted to just not quote the job, but I'm not that busy so would like to be able to offer a quotation!

It had a pipe from the top of the thermal store, would this be the heating vent pipe, I guess the boiler must heat the whole mass of stored water directly, and not thru a coil, otherwise there would have to be two tanks?

Any advice on thermals appreciated!

Stan you got it spot on mate

 

[zeebeedee]

Gledhill boiler mate?

 

[vern]

I went to quote a nice straight forward boiler! Just a potty profile to Ri boiler...

all going well until I saw a big thermal store in the airing! I hate the things, they scare me! It's because I am not familiar with them & there operation!

This one had two pumps in the airing, I'm guessing one pumps the f & r from boiler into store, and the other pump would turn on when heating called for to go round rads, back into store!?

The hot water I guess had the coil inside that then just blends through the mixer valve straight out to taps!

It currently has a old potterton twin channel clock, can this be replaced by a drayton twin channel job? When calling for hot water, would it just turn on the one pump & go off on a normal type cyl stat on the store? I am tempted to just not quote the job, but I'm not that busy so would like to be able to offer a quotation!

It had a pipe from the top of the thermal store, would this be the heating vent pipe, I guess the boiler must heat the whole mass of stored water directly, and not thru a coil, otherwise there would have to be two tanks?

Any advice on thermals appreciated!

There will be 3 pumps as one for hot water too.....be careful with RI has pump has to be controlled from the boiler, obviously this cannot be done with a thermal store, so WB "maybe" will invalidate the warranty

 

[Gray0689]

There will be 3 pumps as one for hot water too.....be careful with RI has pump has to be controlled from the boiler, obviously this cannot be done with a thermal store, so WB "maybe" will invalidate the warranty

3pumps vern!
1 from boiler to store 1 from store to heating where you get the 3rd mate

 

[gassafe]

There will be 3 pumps as one for hot water too.....be careful with RI has pump has to be controlled from the boiler, obviously this cannot be done with a thermal store, so WB "maybe" will invalidate the warranty

The hot water did not have a pump on it. It looks like it just goes through the stored water & out through the thermostat blender valve.

I did worry about the pump overrun, but surely it just overruns the pump on the f& r from boiler into the store. The old potty profiles have overrun so either it was not connected or does that primary pump, I did not check

 

[gassafe]

I will post a pic

 

[gassafe]

 

[gassafe]

theres a pipe off the top that goes into the ceiling, and a cold feed into before the pump on the right hand side!

 

[tamz]

The boilermate 2000 had 3 pumps as it had a plate heat exchanger.

You need to let the gledhill control the pump over run. If you wire it into the boiler it won't work right. Worcester are ok with this.
Btw the boiler has to be turned up to max

 

[vern]

3pumps vern!
1 from boiler to store 1 from store to heating where you get the 3rd mate

Most boiler mates do Alex, hot water pump often modulating type to plate heat ex, obviously not one of those then

 

[R1CKY]

Just finished installing one today! It has solid fuel, solar and gas heat sources!

They really are simple to install, HW ON brings on the boiler switch live via the store control stat, pump live from the boiler powers the pump on the primary flow and return and CH ON powers the heating pump via the room stat.

Still have the solar to fit to it, along with tidying up the wiring and lagging the pipe work. This one has an external plate heat exchanger, as opposed to an internal coil.

 

[tamz]

That is just a basic thermal store back to (front cylinder).
You will need the boiler to control the over run on the bottom pump. A single channel timer will control the top pump for the heating. The water just works through the store.
Nothing hard or too out the ordinary about it.

 

[gassafe]

The boilermate 2000 had 3 pumps as it had a plate heat exchanger.

You need to let the gledhill control the pump over run. If you wire it into the boiler it won't work right. Worcester are ok with this.
Btw the boiler has to be turned up to max

This is not a gledhill is it? I'm guessing the pump can be controlled however to was before, if it went back to boiler etc! I'm just so used to a s or y plan this thing makes me question everything!

 

[Centralheatking]

awesome..........centralheatking

Just finished installing one today! It has solid fuel, solar and gas heat sources!

They really are simple to install, HW ON brings on the boiler switch live via the store control stat, pump live from the boiler powers the pump on the primary flow and return and CH ON powers the heating pump via the room stat.

Still have the solar to fit to it, along with tidying up the wiring and lagging the pipe work. This one has an external plate heat exchanger, as opposed to an internal coil.

 

[vern]

This is not a gledhill is it? I'm guessing the pump can be controlled however to was before, if it went back to boiler etc! I'm just so used to a s or y plan this thing makes me question everything!

The pic you posted saves a thousand words, as Tamz says back to front or inside out cylinder lol.....simple really RI fine on this

 

[tamz]

You can time the store too if you like but it will really be on all the time.

 

[vern]

How many bathrooms it feeding etc, if not not a lot of hot outlets......judging by the state of it rip the lot out for a combi lol

 

[tamz]

How many bathrooms it feeding etc, if not not a lot of hot outlets......judging by the state of it rip the lot out for a combi lol

Probably the best idea and a 50 quid bonus to boot (unfortunately for you lads, paid by cheque :lol

 

[vern]

Probably the best idea and a 50 quid bonus to boot (unfortunately for you lads, paid by cheque :lol

All the scrap men round here Tom are crossing the border lol..where there a will.......

 

[R1CKY]

How many bathrooms it feeding etc, if not not a lot of hot outlets......judging by the state of it rip the lot out for a combi lol

They'll soon be complaining when their hot water flow rate is 12 l/min instead of 30 l/min!

 

[gassafe]

You can time the store too if you like but it will really be on all the time.

Is that's whats best? From first thing in the morning to late at night I guess, or the pump would be running all night? My electrician will not freak out when he tries to wire it then, though a 5/2 day to replace the potterton twin channel!?

Thanks for everyone's input btw, you guys all seem so familiar with em!

That pic that was posted! Pfft! I would not know where to start on that!

 

[vern]

They'll soon be complaining when their hot water flow rate is 12 l/min instead of 30 l/min!

Lol hence depends on hot outlets, got a similar job with a boilermate OV coming out, but too much hot water needs for a combi, so banging in an unvented cylinder.

 

[Whyme]

Just finished installing one today! It has solid fuel, solar and gas heat sources!

They really are simple to install, HW ON brings on the boiler switch live via the store control stat, pump live from the boiler powers the pump on the primary flow and return and CH ON powers the heating pump via the room stat.

Still have the solar to fit to it, along with tidying up the wiring and lagging the pipe work. This one has an external plate heat exchanger, as opposed to an internal coil.

Nice looking, theres a naughty obtuse end feed though.:wink_smile:

 

[Gray0689]

Most boiler mates do Alex, hot water pump often modulating type to plate heat ex, obviously not one of those then

Never saw one vern only seen or used the ones like above