Is it best to leave heating on overnight when this cold?

Walesy · 12-23-2010, 11:01 AM

Quote:

Originally Posted by TMP

mate, did you replace the old wired stat with the base unit of this wireless one ? Someone else mentioned it needs to be wired into the boiler which sounds v.difficult

No, I had an inbuilt timer, no stat what so ever. I wired it to the wall adjacent to the boiler itself. The stat is a 240v ac supply (L, N & E) with 2 switch wires, which is basicaly a 240vac feed with a switched wire returning the 240vac to trigger the enable.

Walesy · 12-23-2010, 11:07 AM

Quote:

Originally Posted by TMP

So guys, why is Honeywell so good over other brands?

Quote:

Originally Posted by dar2008

Why do we buy BMW's over other brands...

Honeywell is just perceived (probably correctly) as a better quality brand/product.

Personally, I dont rate the products as high as some do, yeah they are better than some of the cheaper ones but I wouldnt say thay are the Rolls Royce of products. I prefer the Siemens stuff (formally Landis & Gyr/Landis & Staefa products) as it just doesnt seem to go wrong.

TMP · 12-24-2010, 11:29 AM

Quote:

Originally Posted by Walesy

No, I had an inbuilt timer, no stat what so ever. I wired it to the wall adjacent to the boiler itself. The stat is a 240v ac supply (L, N & E) with 2 switch wires, which is basicaly a 240vac feed with a switched wire returning the 240vac to trigger the enable.

So, i would just replace my old stat with this box...then get the wireless benefits.

My stat looks like its been there since the house was built 1950!

Walesy · 12-24-2010, 11:44 AM

Quote:

Originally Posted by TMP

So, i would just replace my old stat with this box...then get the wireless benefits.

My stat looks like its been there since the house was built 1950!

Yeah, more or less. But you may have to wire in a supply also dependant if the stat you have just now is electro mechanical (has a power supply) or just mechanical. If you are able to take off the cover and get me a pic, i will be able to advise you mate.

TMP · 12-28-2010, 09:05 AM

Quote:

Originally Posted by Walesy

Yeah, more or less. But you may have to wire in a supply also dependant if the stat you have just now is electro mechanical (has a power supply) or just mechanical. If you are able to take off the cover and get me a pic, i will be able to advise you mate.

Hi mate - couple of pics. Looks like it has a mains and a 2 wire connection (to fire boiler?)

Walesy · 12-28-2010, 12:21 PM

Quote:

Originally Posted by TMP

Hi mate - couple of pics. Looks like it has a mains and a 2 wire connection (to fire boiler?)

Yeah thats a mechanical stat by the looks of it mate, basically 240v travels to the stat and switches back to the boiler which then enables, so no neutral in the circuit. You would be better buying a wireless unit, the reciever unit sits near the boiler so wiring/power wont be an issue and the stat (transmitter) can go anywhere.

m@rk · 12-29-2010, 04:11 AM

I bought a Heatmeiser programable stat (not wireless) in 2008 to replace the basic dial based thing in the hall.

Removed the old one, put the new one in it's place and job done.

The unit cost £50 and I have seen my gas bill drop by at least £50 per quarter since.

The nice thing is that all these devices have frost protection built in and a holiday mode so that even though it will let the house temp fall to something that would be uncomfortable to live in, it won't let the house freeze.

But looking at the savings that can be made with these things, it would probably be worth paying somebody to fit one as the payback time is so short.

TMP · 12-29-2010, 03:59 PM

Quote:

Originally Posted by Walesy

Yeah thats a mechanical stat by the looks of it mate, basically 240v travels to the stat and switches back to the boiler which then enables, so no neutral in the circuit. You would be better buying a wireless unit, the reciever unit sits near the boiler so wiring/power wont be an issue and the stat (transmitter) can go anywhere.

Thanks mate. Would you believe Wifey didn't want the wireless one - she just asked for a really decent wired one in the same place!

So went for the Honeywell CM907 as recommended (thanks for the wiring advice as well Will).

Walesy · 12-29-2010, 05:24 PM

Quote:

Originally Posted by TMP

Thanks mate. Would you believe Wifey didn't want the wireless one - she just asked for a really decent wired one in the same place!

So went for the Honeywell CM907 as recommended (thanks for the wiring advice as well Will).

Aye no worries matey, hope it works out well.

Be careful when wiring it though, I dont give out advice unless I know the person is able to do it (not that I am saying your not, it's I Just dont know your skills etc, dont think I am being arsey

)

hmi1750 · 12-29-2010, 07:59 PM

I might have to invest in one too in a month or two.. our three storey house gets much cooler downstairs and the thermostat is a bit vague.. would be good to have it change automatically during the day.

TMP: Let us know how you get on, perhaps a 'How to'

Dr Dave · 01-02-2011, 12:55 PM

My builder mate swears by his Honeywell Wireless Stat/Programmer - this is what I'm going to get.

http://www.honeywelluk.com/products/...ireless/CM927/

TMP · 01-02-2011, 01:18 PM

Quote:

Originally Posted by Walesy

Aye no worries matey, hope it works out well.

Be careful when wiring it though, I dont give out advice unless I know the person is able to do it (not that I am saying your not, it's I Just dont know your skills etc, dont think I am being arsey

)

Yeap, always carefull with wiring...exept when I I only blow up the fuse box

Quote:

Originally Posted by hmi1750

I might have to invest in one too in a month or two.. our three storey house gets much cooler downstairs and the thermostat is a bit vague.. would be good to have it change automatically during the day.

TMP: Let us know how you get on, perhaps a 'How to'

Will try and take some pics!

willhollin · 01-09-2011, 01:43 PM

Everyone still alive?

rogerxp · 01-09-2011, 02:13 PM

Well I felt my house shudder earlier and a huge cloud ball rising from Tims direction so perhaps a just some minor charred eyebrows

. At least he'll save some heating bills as the flames will keep them toasty warm for a week or so...

TMP · 01-09-2011, 03:06 PM

Quote:

Originally Posted by willhollin

Everyone still alive?

Royal mail seems still backlogged here - parcel only arrived on Sat

(Will fit this week)

Quote:

Originally Posted by rogerxp

Well I felt my house shudder earlier and a huge cloud ball rising from Tims direction so perhaps a just some minor charred eyebrows

. At least he'll save some heating bills as the flames will keep them toasty warm for a week or so...

Lol mate.
I would take the heating bill saving in a heartbeat

Dr Dave · 01-10-2011, 03:51 PM

I've been a bad boy, gotta pay my fine tommorrow so my wireless programmer will have to wait for a while :-/

TMP · 01-14-2011, 04:47 AM

Ok, with the milder weather I risked fitting the stat first this morning.

It really is a easy job, with the hardest bit pulling out the painted in older unit!

So, using a multimeter (set to 240v) check you have mains power coming through the Red and Black terminals:

Now turn off the boiler and confirm the mains is indeed off on the red/black) I was still getting 4v (from the boiler timer?) . Ran out of black tape, so just used some masking to cover exposed wires.

Then pull the old backplate out (pesky old paint!)

The honeywell installation instructions are really simple and explain the next steps... screw the honeywell backplate in to the orignal mount:

Wire up Live to A and Neutral to B. As Will mentioned, leave earth attached to the original plate.

Clip on the front faceplat and the check the boiler fires up!

First impressions are good, seems very easy to program (so I can turn down) and then adjust when in Auto mode (so wifey can turn up)

Looking forward to see how the 'Optimisation' works where it learns how long is needed to reach the set temp (so if its colder outside, it will adapt and turn on boiler earlier or vice versa)

Thanks for all the advice guys

NathanJT · 01-14-2011, 09:44 AM

I did exactly this (same unit as well) 2 years ago. We have our heating on 24/7 now with simple temperature variations throughout the day. 22 degrees when we're in, dropping to 18 when we're not. Gas bill has reduced probably 20-30%!

I love the fact that the unit works out how quickly it can ramp up the temperature so that if you say you want it to be 22 degrees at 7 am it IS that temperature and not working its way up there!

- Paul - · 01-14-2011, 01:51 PM

Looks good - how much was it?

Dr Dave · 01-14-2011, 04:35 PM

Just wired my Honeywell CMT927 in, easy to fit and wire. Configuration was easy, currently using the built-in default auto settings but will look at modifying this as/when I can sit down and go through it.

Looking fwd to seeing some savings.....esp after the recent cold spell when we used a hideous among of gas!

JLR1969 · 01-14-2011, 05:57 PM

I have the CM907 but have not yet fitted it. Good old Will gave me some fitting advice so will do it on Sunday.

Cost £45 from eBay brand new.

JLR1969 · 01-15-2011, 01:12 PM

Installed it today, only took 10 minutes including programming.

Thanks Will for the help. Looks a lot better and saves me having to keep turning the stat down before bed.

I think 19C is the right temperature in the evening but we will see.

12-29-2010, 04:11 AM	#73
m@rk Major 47 Rep 1,074 Posts Drives: 2014 520D SE Join Date: Jul 2009 Location: Lincolnshire (sometimes) iTrader: (0) Garage List 2014 BMW 520D SE [0.00] 2012 Audi A7 [0.00] 2013 Fiat 500 1.2 L ... [0.00] 2008 BMW 335D SE To ... [0.00] 2012 Mercedes-Benz ... [0.00]	I bought a Heatmeiser programable stat (not wireless) in 2008 to replace the basic dial based thing in the hall. Removed the old one, put the new one in it's place and job done. The unit cost £50 and I have seen my gas bill drop by at least £50 per quarter since. The nice thing is that all these devices have frost protection built in and a holiday mode so that even though it will let the house temp fall to something that would be uncomfortable to live in, it won't let the house freeze. But looking at the savings that can be made with these things, it would probably be worth paying somebody to fit one as the payback time is so short.
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12-29-2010, 07:59 PM	#76
hmi1750 Major 25 Rep 1,130 Posts Drives: M135i Join Date: Jun 2007 Location: London, UK iTrader: (0)	I might have to invest in one too in a month or two.. our three storey house gets much cooler downstairs and the thermostat is a bit vague.. would be good to have it change automatically during the day. TMP: Let us know how you get on, perhaps a 'How to'
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01-02-2011, 12:55 PM	#77
Dr Dave Zummerzet Zyder Drinker! 112 Rep 5,541 Posts Drives: '06 330D Le Mans Blue Join Date: May 2009 Location: Somerset iTrader: (3) Garage List 2006 330d M Sport [0.00]	My builder mate swears by his Honeywell Wireless Stat/Programmer - this is what I'm going to get. http://www.honeywelluk.com/products/...ireless/CM927/ __________________
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01-09-2011, 01:43 PM	#79
willhollin Major General 268 Rep 9,915 Posts Drives: VW T5 Join Date: Apr 2008 Location: Worcestershire iTrader: (1) Garage List 2007 BMW E92 330d SE [10.00] 2010 Transporter T5 ... [0.00]	Everyone still alive? __________________
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01-09-2011, 02:13 PM	#80
rogerxp Major General 165 Rep 5,950 Posts Drives: M3 Comp Pack / QQ+2 Tekna Join Date: May 2008 Location: Stockport, Cheshire iTrader: (1) Garage List 2008 350Z GT Roadster [2.00] 2004 Honda S2000 [0.00] 2005 Nissan 350Z GT ... [0.00] 2006 E92 BMW 335i SE [9.00] 2003 Maserati 4200 [6.00] 2006 E90 330d M Sport [0.00]	Well I felt my house shudder earlier and a huge cloud ball rising from Tims direction so perhaps a just some minor charred eyebrows . At least he'll save some heating bills as the flames will keep them toasty warm for a week or so... __________________ Current -: MW E92 M3 Competition Pack / Qashqai+2 Tekna 1.6dci Gone -: 370Z GT Roadster; BMW X3 3.0d xdrive M Sport; E46 330i M Sport Coupe; Mazda RX8 231; Nissan 350Z GT Roadster; BMW E90 330d M Sport; BMW E92 335i SE; Maserati 4200; Nissan 350Z; Honda S2000; Astra Coupe Turbo; Ford Probe
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01-10-2011, 03:51 PM	#82
Dr Dave Zummerzet Zyder Drinker! 112 Rep 5,541 Posts Drives: '06 330D Le Mans Blue Join Date: May 2009 Location: Somerset iTrader: (3) Garage List 2006 330d M Sport [0.00]	I've been a bad boy, gotta pay my fine tommorrow so my wireless programmer will have to wait for a while :-/ __________________
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01-14-2011, 04:47 AM	#83
TMP Brigadier General 349 Rep 3,022 Posts Drives: M6 Join Date: Nov 2008 Location: Cheshire iTrader: (0)	How To..... Ok, with the milder weather I risked fitting the stat first this morning. It really is a easy job, with the hardest bit pulling out the painted in older unit! So, using a multimeter (set to 240v) check you have mains power coming through the Red and Black terminals: Now turn off the boiler and confirm the mains is indeed off on the red/black) I was still getting 4v (from the boiler timer?) . Ran out of black tape, so just used some masking to cover exposed wires. Then pull the old backplate out (pesky old paint!) The honeywell installation instructions are really simple and explain the next steps... screw the honeywell backplate in to the orignal mount: Wire up Live to A and Neutral to B. As Will mentioned, leave earth attached to the original plate. Clip on the front faceplat and the check the boiler fires up! First impressions are good, seems very easy to program (so I can turn down) and then adjust when in Auto mode (so wifey can turn up) Looking forward to see how the 'Optimisation' works where it learns how long is needed to reach the set temp (so if its colder outside, it will adapt and turn on boiler earlier or vice versa) Thanks for all the advice guys __________________ M2 Arrived! Family 5er
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01-14-2011, 09:44 AM	#84
NathanJT Techie Geek 37 Rep 681 Posts Drives: 330d M Sport Manual Join Date: Jan 2007 Location: Derby, UK iTrader: (0)	I did exactly this (same unit as well) 2 years ago. We have our heating on 24/7 now with simple temperature variations throughout the day. 22 degrees when we're in, dropping to 18 when we're not. Gas bill has reduced probably 20-30%! I love the fact that the unit works out how quickly it can ramp up the temperature so that if you say you want it to be 22 degrees at 7 am it IS that temperature and not working its way up there! __________________ 330d M-Sport \| Sapphire Black \| Black Dakota \| Nav Pro \| iDrive \| Bluetooth \| PDC \| Xenons \| Hot Seats \| Tracker \| Blacklines
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01-14-2011, 01:51 PM	#85
- Paul - Major General 695 Rep 7,308 Posts Drives: see above. Join Date: Apr 2005 Location: Yorkshire, UK iTrader: (5) Garage List 2005 320D SE [10.00] 2005 645 [9.00]	Looks good - how much was it? __________________ My Photos
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01-14-2011, 04:35 PM	#86
Dr Dave Zummerzet Zyder Drinker! 112 Rep 5,541 Posts Drives: '06 330D Le Mans Blue Join Date: May 2009 Location: Somerset iTrader: (3) Garage List 2006 330d M Sport [0.00]	Success! Just wired my Honeywell CMT927 in, easy to fit and wire. Configuration was easy, currently using the built-in default auto settings but will look at modifying this as/when I can sit down and go through it. Looking fwd to seeing some savings.....esp after the recent cold spell when we used a hideous among of gas! __________________
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01-14-2011, 05:57 PM	#87
JLR1969 Major General 1882 Rep 7,000 Posts Drives: Kubota GR1600 Join Date: Dec 2008 Location: England iTrader: (1)	I have the CM907 but have not yet fitted it. Good old Will gave me some fitting advice so will do it on Sunday. Cost £45 from eBay brand new.
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01-15-2011, 01:12 PM	#88
JLR1969 Major General 1882 Rep 7,000 Posts Drives: Kubota GR1600 Join Date: Dec 2008 Location: England iTrader: (1)	Installed it today, only took 10 minutes including programming. Thanks Will for the help. Looks a lot better and saves me having to keep turning the stat down before bed. I think 19C is the right temperature in the evening but we will see.
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