Home Automation Bargain Alerts thread - No General Chat

GarIT

deezell wrote: »

You can indeed. Bear in mind that the TRV is not wired to call the boiler, it wirelessly calls the main Tado stat in whose zone it resides, and this fires the boiler on it's behalf. Any non smart TRV radiators in this zone will heat also. Ideally when you smart TRV a zone, you should do all of the rads, or else those most likely to be off when the others are on.

Thanks.

So if you want a zone for every room you need a thermostat and smart TRV for each room? There's a review on youtube that suggests that the TRV knows the temperature of the room it's in, he only got 1 thermostat yet has more than one zone.

THE ALM

20% off Hive Easter sale until the 8th. Tempted by the GU10 warm to cool spotlights as they work out at about £12 each, must resist as I have spent far too much already!

irelandrover

GarIT wrote: »

Thanks.

So if you want a zone for every room you need a thermostat and smart TRV for each room? There's a review on youtube that suggests that the TRV knows the temperature of the room it's in, he only got 1 thermostat yet has more than one zone.

No, you dont need a TRV and thermostat in every room. When a TRV wants to turn on the radiator it sends a call to the thermostat, which then sends a call to the boiler. If every radiator in your house has a TRV then only one radiator will now turn on.

However, if some radiators do not have the smart TRV then they also turn on when teh thermostat sends a call to the boiler.

AndyBoBandy

THE ALM wrote: »

must resist as I have spent far too much already!

Black_Knight

irelandrover wrote: »

No, you dont need a TRV and thermostat in every room. When a TRV wants to turn on the radiator it sends a call to the thermostat, which then sends a call to the boiler. If every radiator in your house has a TRV then only one radiator will now turn on.

However, if some radiators do not have the smart TRV then they also turn on when teh thermostat sends a call to the boiler.

I have a theory on this. It does rely on the Tado TRVs working without a hub, which I may or may not have read somewhere that they don't.

Anyways.... IF every radiator had a Tado TRV, and each TRV knew what time its room needed to be at what temperature. Could the heating just be put on constant? In instances where every valve is closed, the loop would be shut, so the heating would not run (I might be wrong in this, im no plumber). In instances where 1/2/3 radiators open up because their rooms are too cold, the boiler would kick in and heat those rooms.

So... how wrong have I got this?

GarIT

irelandrover wrote: »

No, you dont need a TRV and thermostat in every room. When a TRV wants to turn on the radiator it sends a call to the thermostat, which then sends a call to the boiler. If every radiator in your house has a TRV then only one radiator will now turn on.

However, if some radiators do not have the smart TRV then they also turn on when teh thermostat sends a call to the boiler.

Great thanks

Black_Knight wrote: »

So... how wrong have I got this?

This is exactly the setup I (my mam) wants. I think the issue would be if you have the boiler on while all the radiators off would be very inefficient. The ideal setup we want would be with no main thermostat(it will never be used if every radiator has it's own zone) and just control the temperature and schedule of each room individually from the smart TRV.

stimpson

Black_Knight wrote: »

I have a theory on this. It does rely on the Tado TRVs working without a hub, which I may or may not have read somewhere that they don't.

Anyways.... IF every radiator had a Tado TRV, and each TRV knew what time its room needed to be at what temperature. Could the heating just be put on constant? In instances where every valve is closed, the loop would be shut, so the heating would not run (I might be wrong in this, im no plumber). In instances where 1/2/3 radiators open up because their rooms are too cold, the boiler would kick in and heat those rooms.

So... how wrong have I got this?

That would leave your boiler short cycling (heating the water in its heat exchanger when there is no demand). This is wasteful and can damage your boiler

Disclaimer: IANAP

bk

Well there is actually two ways you can control the boiler with Tado:

1) Directly with the Smart Thermostat (the one with a screen on it)
2) Indirectly with the Dual Channel wireless receiver.

Now, I could be wrong, so double check. But I think you could pair the TRV's with the Dual Channel Wireless Receiver and skip the Smart Thermostat part.

Of course, ideally you will want a TRV on every rad otherwise any rad without a TRV will also heat when the boiler is switched on.

Tado do talk about using TRV's without either of the above, but I think that is more aimed at district heating systems where you have like one boiler for an example an entire apartment building, that runs all the time and you only control the rads in your apartment, but not the boiler.

Such systems aren't common in Ireland, but a lot more common in continental Europe. I don't think this would work for most Irish people.

deezell

1. For a local boiler you need to cut the boiler when all TRVs are closed
2. TRVs can only cut the boiler via an associated stat.
3. TRVs will not work without a hub/ bridge, but will work without a stat ( but no boiler control), e.g community heating with constant pumped heating water. TRVs can't fire boiler through ext. Kit without a main stat.
4. If all rads have TRVs, the TRVs on the rad(s) in the same location as the main stat can be slaved to that stat, stat becomes the temperature measuring device. This avoids temperature threshold conflict.
5. TRVs can similarly be grouped, with a number of TRVs as slaves to single measuring one. This helps avoid having too many zones and schedules to manage
6. The above applies to Tado TRVs
7. We should have this debate in the https://touch.boards.ie/thread/post/106487728 thread before we incur wrath of bargain junkies.

stimpson

If anyone is looking for any Lightwave RF kit then I have a single use 15% off code. Good until April 2nd on orders over £100.

degsie

Smart Bulb, MEAMOR Light LED Dimmable 7W RGB Bulb,Work with Alexa and Google Home ,Multicolored Color Changing Wake Up Lights , Party and Decorative Bulbs, Remote Controlled by IOS/Android Devices https://www.amazon.co.uk/dp/B075ZLTVNX/ref=cm_sw_r_cp_apa_wREVAbR9N5EWK

Current lightning deal on amazon.

LeBash

bk wrote: »

Well there is actually two ways you can control the boiler with Tado:

1) Directly with the Smart Thermostat (the one with a screen on it)
2) Indirectly with the Dual Channel wireless receiver.

Now, I could be wrong, so double check. But I think you could pair the TRV's with the Dual Channel Wireless Receiver and skip the Smart Thermostat part.

Of course, ideally you will want a TRV on every rad otherwise any rad without a TRV will also heat when the boiler is switched on.

Tado do talk about using TRV's without either of the above, but I think that is more aimed at district heating systems where you have like one boiler for an example an entire apartment building, that runs all the time and you only control the rads in your apartment, but not the boiler.

Such systems aren't common in Ireland, but a lot more common in continental Europe. I don't think this would work for most Irish people.

Most boilers will have stat on the return. So let's say set to 60c and when all the trvs are closed the heat coming back will increase and turn off the boiler. That's the set up I have with an old wireless chronostat. The trvs on rads will work in the same way.

Basically my boiler kicks in and out at the preset times. It may turn on for only 8-10 mins per hour once it reaches the set point.

Assuming you have a stat on return, trv system will work, the only thing running is the pump.

nxbyveromdwjpg

I'm in the market for 20x Hue light bulbs and a couple of the strips too.

I notice on Amazon today that they are between 6% and 18% off - I don't need them for about 4 months though (house getting redone), would I be better off waiting for a bigger discount? I've seen in the thread there was a 30% discount a few days ago..

AndyBoBandy

What type of Hue bulbs are you needing? B22/E27/GU10

White only? White Ambiance? White & Colour Ambiance?

nxbyveromdwjpg

AndyBoBandy wrote: »

What type of Hue bulbs are you needing? B22/E27/GU10

I don't know yet - everything is getting rewired and the biggest room is a new extension altogether. I can probably pick actually.
x16 will be down lights/recessed and x5 will be hanging.

AndyBoBandy wrote: »

White only? White Ambiance? White & Colour Ambiance?

I think x12 colour ambience (downstairs) and x8 white ambiance (bedrooms).

AndyBoBandy

Twin packs appear to be the best value of late, and coupled with the 3 for 2 deal, it’s quite a decent price per bulb.

NoeldeBournaix

Philips Hue White Ambience

2 x 5.5W GU10 LED spot lights (33.50euro on amazon Spain)

https://www.amazon.es/Philips-Hue-White-Ambiance-iluminaci%C3%B3n/dp/B01L99H850/ref=gbph_img_s-3_483f_1abc6746?smid=A1AT7YVPFBWXBL&pf_rd_p=05385bd2-5507-4b73-924d-15024847483f&pf_rd_s=slot-3&pf_rd_t=701&pf_rd_i=gb_main&pf_rd_m=A1AT7YVPFBWXBL&pf_rd_r=TVKEBWVQHG5NAW7T2F3C

Delivery is about 7.50.

AngelaRI

John Lewis had a few 3-for-2 deals on last I checked - I got some good deals from them last month, 12 bulbs (incl starter kit), 3 were free from bundling the deals, whole house got done at once so keep an eye on them. They also have bundles with Hue Tap or motion sensor along with lights, or GH/Echo with lights, and I think shipping was free (only catch is you need ParcelMotel or similar to get a UK address, but all was very quick and pain free)

AndyBoBandy

Philips Hue White & Colour GU10 bulbs down to £39.49 on Amazon U.K.

AndyBoBandy

Hue sensor down to £29.95 on Amazon U.K.

Hue E14/E27/B22 white & colour single bulbs down to £42.39

E27 white & Colour twin pack is still £71.07

AngelaRI

Samsung SmartThings devices are half price on most UK sites (Currys, Argos, Amazon), but out of stock!!! I'll keep an eye but have a feeling they'll be full price when the new stock arrives - Easter bargains?

Found one for £20.99 on Very.co.uk - still £9 less than the usual £29.99, strongly considering!

THE ALM

AngelaRI wrote: »

Samsung SmartThings devices are half price on most UK sites (Currys, Argos, Amazon), but out of stock!!! I'll keep an eye but have a feeling they'll be full price when the new stock arrives - Easter bargains?

Found one for £20.99 on Very.co.uk - still £9 less than the usual £29.99, strongly considering!

It has been like that for the last 3-4 weeks here and the UK. Had some sensors reserved in Argos and they never turned up, when I contacted Argos they told me to forget about getting them as they didn't know when they would have them. Amazon have some of the starter kits at half price.

bk

Yes, the SmartThings gear has been on and off sale on Amazon over the past few weeks. I picked up some motion and door/window sensors for about £15 odd each.

Actually just checked, most of them are currently £15, but you need to be a prime member to get that price. You could sign up for the prime 1 month trial for free to buy them if you wanted.

fergalc

bk wrote: »

Yes, the SmartThings gear has been on and off sale on Amazon over the past few weeks. I picked up some motion and door/window sensors for about £15 odd each.

Actually just checked, most of them are currently £15, but you need to be a prime member to get that price. You could sign up for the prime 1 month trial for free to buy them if you wanted.

hi bk, have you a link to the amazon.co.uk £15 window sensors?

best regards, f

bk

fergalc wrote: »

hi bk, have you a link to the amazon.co.uk £15 window sensors?

best regards, f

Weird, it isn't there at the moment!

It is usually listed on this page:
https://www.amazon.co.uk/gp/product/B01LXLW1AZ/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1

There are one or two other listings of it, but those are second hand ones:

https://www.amazon.co.uk/Samsung-SmartThings-Controlled-Multi-Sensor-Detector/dp/B00MOJ44OI/ref=sr_1_2?s=diy&ie=UTF8&qid=1523015071&sr=1-2&keywords=smartthings+multi+sensor&dpID=31IwhvxY8SL&preST=_SY300_QL70_&dpSrc=srch

It most be out of stock at the moment, sorry, keep checking the first link every few days, I guess it will come back into stock there.

nxbyveromdwjpg

Maplins Flash Sale - up to 25% off Hue Lights https://www.maplin.co.uk/cs/clearance-lines#Brand:Philips:&sort=relevance&page=0&productsPerPage=20

Knightridernut

Nalani Helpless Condo wrote: »

Maplins Flash Sale - up to 25% off Hue Lights https://www.maplin.co.uk/cs/clearance-lines#Brand:Philips:&sort=relevance&page=0&productsPerPage=20

Would you definitely get the items, seeing as Maplins are on the way out?

stimpson

Knightridernut wrote: »

Would you definitely get the items, seeing as Maplins are on the way out?

The real question is would it be cheaper than buying from Amazon because Maplins are Maplins.

paulbok

Ring doorbells and some cameras are on sale on Amazon. Probably due to Amazon completing the purchase of Ring today

AndyBoBandy

Decent deals again on the Hue colour twin packs - E27/B22/E14 - (E27 working out at £34 per bulb, B22 working out £36 per bulb & E14 working out at £36.50 per bulb)

GU10 White & Colour Ambiance is also back down to £39.99 per bulb

GU10 White Ambiance twin pack down to £44