Rf stat

[MM65]

​Can anyone recommend a reliable rf stat for combi boiler

 

[nysk2008]

what boiler?

 

[Barry98]

Same as what answers you got on the electrical forum honeywel lol l , welcome to the forums too

 

[Doodlebug]

​Can anyone recommend a reliable rf stat for combi boiler

Yeh, this one.

http://www.britishgas.co.uk/products-and-services/remote-heating-control.html


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[MM65]

Thanks needed to do a post before they deleted me so thought I would do the same question to both

 

[MM65]

Worcester Bosch 37 cdi

 

[nysk2008]

MT10RF - is alright and pretty simple

 

[petercj]

MT10RF - is alright and pretty simple

"Reliable" is a relative term when it comes to RF stats - Honeywell and Drayton have a reputation for being the least unreliable.

I'm on my third, (previous were Siemens and Horstmann) and now have a Drayton, and so far, (touching wood as I type) it's been ok.

 

[Ray Stafford]

"Reliable" is a relative term when it comes to RF stats - Honeywell and Drayton have a reputation for being the least unreliable.

Its a good point about RF controls.

I just looked up our return rates - we sell 1000s of RF controls, so our in-warranty return data should give a good feel for reliability.

Return rate on Drayton RF products - 2.03%
Return rate on Honeywell RF products - 2.19%

Here's the one that surprised me:

Return rate on Salus RF products - 2.8%. I would have expected a bigger gap between the "budget brand" and the quality boys.

For comparison, the return rate on hard-wired products is usually 1% plus or minus 0.2%.

 

[petercj]

Its a good point about RF controls.

I just looked up our return rates - we sell 1000s of RF controls, so our in-warranty return data should give a good feel for reliability.

Return rate on Drayton RF products - 2.03%
Return rate on Honeywell RF products - 2.19%

Here's the one that surprised me:

Return rate on Salus RF products - 2.8%. I would have expected a bigger gap between the "budget brand" and the quality boys.

For comparison, the return rate on hard-wired products is usually 1% plus or minus 0.2%.

That's really useful information to have Ray.

Test reports/ reviews, etc, usually give a good summary of spec, performance, and the like, but finding information on how long something lasts is another story.

For some reason RF room stats seem more unreliable than other RF equipment - the first Siemens stat I fitted didn't work at all, and the second failed after a short while. Bearing in mind the vast amount of experience Siemens have in making far more complex RF remote control equipment than a room stat, such abysmal failure seems rather puzzling.

 

[Ray Stafford]

I think that there might be an environmental factor affecting RF performance. I don't know enough about RF technology and the frequencies used to be certain, but looking at our stats, failures definitely cluster.

We have 3 branches in the Portsmouth area - Pompey itself, Gosport and Fareham. They have higher RF return rates than anywhere else. I was wondering if it could be something to do with the military radio traffic, weapons control systems on ships etc?

Inland areas, and branches serving more rural populations have lower return rates. The 4th highest return rate (after the 3 mentioned above) is Aldershot - another military town.

It might just be coincidence - once you get down to individual branch level, it only takes a couple of extra returned items to skew the stats on such small percentages. Alternatively, we might just have a couple of customers who are installing them wrong.

Ray

 

[Doodlebug]

I think that there might be an environmental factor affecting RF performance. I don't know enough about RF technology and the frequencies used to be certain, but looking at our stats, failures definitely cluster.

We have 3 branches in the Portsmouth area - Pompey itself, Gosport and Fareham. They have higher RF return rates than anywhere else. I was wondering if it could be something to do with the military radio traffic, weapons control systems on ships etc?

Inland areas, and branches serving more rural populations have lower return rates. The 4th highest return rate (after the 3 mentioned above) is Aldershot - another military town.

It might just be coincidence - once you get down to individual branch level, it only takes a couple of extra returned items to skew the stats on such small percentages. Alternatively, we might just have a couple of customers who are installing them wrong.

Ray

You from Pompey mate?


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[Ray Stafford]

You from Pompey mate?

Only for 27 years. Mrs S, a born and bred pompey lass, says that isn't long enough to count.

 

[petercj]

I think that there might be an environmental factor affecting RF performance. I don't know enough about RF technology and the frequencies used to be certain, but looking at our stats, failures definitely cluster.

We have 3 branches in the Portsmouth area - Pompey itself, Gosport and Fareham. They have higher RF return rates than anywhere else. I was wondering if it could be something to do with the military radio traffic, weapons control systems on ships etc?

Inland areas, and branches serving more rural populations have lower return rates. The 4th highest return rate (after the 3 mentioned above) is Aldershot - another military town.

It might just be coincidence - once you get down to individual branch level, it only takes a couple of extra returned items to skew the stats on such small percentages. Alternatively, we might just have a couple of customers who are installing them wrong.

Ray

Again, interesting information Ray. Would be interesting to see such data collated on a national basis to see if any significant correlations emerge.

I know your area well - I lived in Locks Heath for a number of years. Used to scoot up and down the M27 corridor on a daily basis.

 

[Ray Stafford]

Again, interesting information Ray. Would be interesting to see such data collated on a national basis to see if any significant correlations emerge.

Hi PeterCJ

I don't suppose the controls manufacturers would release the national stats that I put in my post #9 - they would be afraid of looking bad. One of the national merchants might, but I wouldn't hold my breath.

I know your area well - I lived in Locks Heath for a number of years. Used to scoot up and down the M27 corridor on a daily basis.

So what made you leave gods own country?

 

[petercj]

Hi PeterCJ

I don't suppose the controls manufacturers would release the national stats that I put in my post #9 - they would be afraid of looking bad. One of the national merchants might, but I wouldn't hold my breath.

I would have thought that it was good business practice for the national chains to weed out the stuff that comes back a lot.

BG seem to favour Drayton under their own label, and they've put wireless technology at the centre of their national TV advertising campaign. One might question the wisdom of leading with technology that is not yet regarded as being particularly reliable.

From my reading on this forum, Drayton RF products have not always had good feedback, and Honeywell have done much better.

So what made you leave gods own country?

I moved into the area to do a two-year post grad at Soton Uni, and then took a job in another part of the country. Could easily have stayed in Hampshire though because it has so much to offer, including the glorious New Forest.

 

[Ray Stafford]

One might question the wisdom of leading with technology that is not yet regarded as being particularly reliable.

You can look at this in two ways, based on the Drayton stats posted above. If I was trying to put you off RF roomstats, I could say that having RF is 100% more likely to fail than hard-wired. Sounds terrible doesn't it?

Alternatively, you could think of it like this - for 98 customers out of 100, RF will work just fine. Sounds much better. Just a question of how you spin it.

 

[petercj]

You can look at this in two ways, based on the Drayton stats posted above. If I was trying to put you off RF roomstats, I could say that having RF is 100% more likely to fail than hard-wired. Sounds terrible doesn't it?

Alternatively, you could think of it like this - for 98 customers out of 100, RF will work just fine. Sounds much better. Just a question of how you spin it.

Your stats are reassuring Ray - especially as I have a Drayton RF stat myself! lol

The Salus figures are interesting too - based in Hong Kong apparently, and part of the Compute Time Group - been running since 1974 apparently.

You can never tell where stuff is made these days - but somewhere in China is usually a safe bet! :smile: