Atag One Controller or similar?

[king of pipes]

You will need to upgrade the gas supply for the 35 - 22mm wont give you enough gas . Kop

 

[Jem16]

You will need to upgrade the gas supply for the 35 - 22mm wont give you enough gas . Kop

Thanks. I'll make sure I check this out with the installer.

 

[Jem16]

Maybe ? , Atag deal direct with the Installer I am registered with them I dont think either quote is far off although agreed £3800 for the 27 is a bit much, go with who you feel most comfortable with . Kop

Can I ask you a couple more questions please?

The installer who gave me the quote for £3800 has now come back with a new price after I said that an extra £1000 was too much of a difference. He said that his quote was including a price rise that Atag were putting on at the end of the month - is this true?

His new price after taking off that increase and removing a few non-essentials ( why include them then??) is just under £3200 and is for the 35 Plus. He does charge VAT though whereas the other two are non VAT registered. Still £300/£500 dearer but at least closer. I'm just a little wary of someone who can drop their prices by around £600 and include the better boiler.

My other question surrounds the smart controller. I'm being told by one of them that to use OpenTherm, I must use the Atag controller as otherwise it would invalidate the warranty. So if I chose Nest he couldn't connect it to OpenTherm connections. Again is this true?

 

[Harvest Fields]

Yes to the price rise. I have had a letter. (Not sure how much though off the top of my head)
Speak to ATAG themselves if I was you. Just to make sure.

 

[king of pipes]

Yes there has been a price increase the first one in 4 years I can't see a problem with fitting a nest I have one sitting here ready to swap , as I said go with your gut feeling don't be afraid to go with the newbie guy the first install gets set up and commissioned along side a Atag engineer and he must demonstrate hes more than competent for Atag to supply him . Kop

 

[Jem16]

as I said go with your gut feeling don't be afraid to go with the newbie guy

Unfortunately the newbie (and the cheapest) is the one that has just told me he couldn't fit Nest to OpenTherm as Worcester Bosch once told him that it would invalidate the warranty if he connected to OpenTherm without using their own controller.

Now I would have expected him to check with Atag first.

the first install gets set up and commissioned along side a Atag engineer and he must demonstrate hes more than competent for Atag to supply him . Kop

Yes Atag did say that to me when I phoned them a couple of days ago. I did also ask about using Nest as opposed to Atag One but didn't specifically ask about OpenTherm.

Argh - this is difficult!!

My initial feeling was to choose the dearest guy as he was very efficient in communicating and has excellent reviews online. He's also the most experienced having installed around 50 to 60 Atag boilers. However he's £300/£500 dearer evn though he's just reduced his price by £600 and now giving me the 35 Plus as opposed to the 27 Plus. My feeling is why did he quote so high in the first place - yes part of it is down to VAT but not all of it.

The middle guy has experience and has fitted around 3o Atag boilers. His communication has always been great, no VAT as he stays below the level for VAT registration. Works on personal recommendation and word of mouth. One Google review I've read is excellent but also good recommendations via LinkedIn. Seems to purposely choose to work less hours than some but this may be a good thing.

 

[king of pipes]

Number 2 sounds very much like me 40 percent tax and do the vat mans work for free no thankyou , i pick and choose my jobs work on word of mouth recommendations and am on linkedin as is middle man , your choice but hes looking favourite . Kop

 

[Scott_D]

Number 2 sounds very much like me 40 percent tax and do the vat mans work for free no thankyou , i pick and choose my jobs work on word of mouth recommendations and am on linkedin as is middle man , your choice but hes looking favourite . Kop

Is it you?

 

[Jem16]

Is it you?

Not unless he's far travelled.

 

[Brambles]

If you have a larger system, particularly one with rooms that are not used everyday, look at Honeywell Evohome.

It is the most expensive of the proven systems available - but it allows each room to be zoned independently.

 

[Jem16]

If you have a larger system, particularly one with rooms that are not used everyday, look at Honeywell Evohome.

It is the most expensive of the proven systems available - but it allows each room to be zoned independently.

Thanks I've had a look at Evohome but I think it's really too much for my needs. Yes I have a couple of bedrooms only in use when visitors come but turning down the TRVs cope with that.

 

[Jem16]

Just coming back to this to ask about weather compensation. It seems that on outdoor sensor can be fitted and/or use the weather compensation via the Atag One.

Is one method better than the other and basically is it a good thing to use?

 

[Brambles]

Correct, weather compensation is excellent, but it should be wired through a relay to ensure that HW operates effectively in the summer months

 

[Scott_D]

Just coming back to this to ask about weather compensation. It seems that on outdoor sensor can be fitted and/or use the weather compensation via the Atag One.

Is one method better than the other and basically is it a good thing to use?

The sensor will be more accurate
The app goes by the local
Weather station
The sensor can be awkward to mount in a suitable location

 

[Brambles]

North facing wall, or it won’t be as effective as it should be

 

[Jem16]

The sensor will be more accurate
The app goes by the local
Weather station
The sensor can be awkward to mount in a suitable location

Thanks. So the sensor takes the outside weather temperature. Do you then just set up the desired temperature on the room thermostat along with whatever times you want?

 

[Brambles]

Correct

 

[Jem16]

Correct

Thanks. Now to find a suitable position for the sensor.

 

[Brambles]

A North facing wall

 

[Jem16]

A North facing wall

Ok. North East wall may be better and more shaded in my case.

 

[Brambles]

Two obvious points:

Ensure that HW is not controlled by the external sensor - not an issue in winter, but it will be in the summer.

If the sensor is positioned towards the East, ensure that no early morning winter sun reaches the sensor - it will deliver cool CH flow

 

[Jem16]

Two obvious points:

Ensure that HW is not controlled by the external sensor - not an issue in winter, but it will be in the summer.

Will do thanks.

If the sensor is positioned towards the East, ensure that no early morning winter sun reaches the sensor - it will deliver cool CH flow

Picking a very shaded section where the sun never reaches due to evergreen trees. Checked that this morning.

I want to make sure I’m doing the right thing as the installer has said that some people have had issues in similar properties to mine where they can’t get the hearing on due to it being warm outside but not inside.

It’s an old 1938 property with thick stone at the front. Front rooms remain cool as they’re north facing but back rooms can be quite warm, especially on sunny days.

 

[Jem16]

Ok all up and running now and just getting to grips with the various settings.

I'd particularly like some info on the weather compensation part using Atag boilers. Can anyone help on here or should I start a new thread?

 

[Scott_D]

Any pictures?

 

[Jem16]

Any pictures?

Of the boiler you mean?