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Andrew, things will likely improve if you bring the controller back into commission. Does it need batteries? Whats the ratio of flow to return temps, if the return temp is close to the flow temp the boiler will cut out as the house rads are not radiating the heat being produced. Ensure at least...

looks like the vr900 is the internet bridge for the vr700, there is a wireless adapter for the vr900. I don't think the vr700 is wireless. The heat curve is essential to maintaining correct temp in your house, not too hot (curve too high) and not too cold (curve too low). The wired controllers...

possibly, the wired vr470 has auto heat curve, also the vr700 is now on the market, does the auto heat curve etc & has an app but in typical Vaillant fashion there is no detail on how the app connects to the controller, i suspect a separate module is required...

I had the vr470f but swapped for the vsmart. My setup is ecotec 630, vr66 with the cylinder dry pocket temp sensor, gledhill unvented system cylinder. You'd have to import the vr900 from amazon, I see they have the v700 on the uk vaillant website which I assumed was the same as the 900 but...

I should add vsmart needs a wiring centre to connect to the boiler, vr65 is compatible or vsmart can be purchased bundled with vr66. My boiler is cycling on off often with a low flow temp under 40c.

I'd hold off for the mo. The app is lacking basic stuff like separate hw and heating times, temp of tank, temp drop of tank before recharging etc, any meaningful stats of the system. Also unable to read or change boiler attributes from the app that you could from the vr470 controller. You may...

Do not buy this version of vSmart Netamo have released a HomeKit version of their controller (has a white light instead of blue in the receiver). HomeKit permits interoperability with other vendors IoT equipment like sensors and lights. The Netamo thermostat has greater functionality than...

Vr470f WC stat shows 15.5, VSmart outside temp shows 15.6 Other weather apps show 18 and netamo shows 20 at local weather stations as does my eve weather. I'm wondering if Vsmart is picking up outside temp from the WC sensor?

i've received and installed vSmart system pack for our ecotec unvented system boiler. observations: installing vr66 the manual advises turning a dial to 1 if replacing a vr65. This emulates a VR65, so most likely no need to buy a vSmart system pack with vr66 if you already have a vr65 (i have...

Other forum page discussing this http://www.diynot.com/diy/threads/vaillant-vsmart-to-replace-vrt392.449572/page-2#post-3661219

With your insight into VSmart & 700/900 controllers I think that makes both of us @Bunnyman (n) that know a lot. You always want the best for the situation and wallet. They all have compromises though. Non vaillant have great features but no modulation Vr700 & 900 ok but expensive and limited...

No one seems to know the answer and vaillant just say I need the sys/ov pack. I fully suspect the sys/ov pack is needed just for those without a wiring centre and I suspect vr66 is listed as the vr65 is discontinued. As noted in another thread another controller, vr700 + prc900 will be released...

So the Vsmart weather comp is powered by netamo. Whilst I was looking around, it seems the Vsmart is extremely similar to the netamo smart stat. Would be good to know if the netamo did modulation as I assume the VSmart does. If so could save £100 by just getting netamo...

seems like the vSmart is the one to go for as it offers more variability on the programmes, is remote ready out of the box & cheaper. does the 700 do anything that the vSmart doesn't (other than sensor based WC)? I can't see any advantage of the 700 over vSmart in the documentation.

@Bunnyman A shame they didn't release the vr900 for the vrc470 too. https://translate.google.co.uk/translate?sl=auto&tl=en&u=https%3A//www.vaillant.be/consumenten/producten/vr-900-24003.nl_be.html Looks like the prc700 is also only wired. I would also need an additional wireless stat or pull...

@Bunnyman the vrc700/900 looks just like the 470. Is the only difference wifi remote capability?

Yep I've already got the app and taken a look. The app is great but only allows a setback and daytime temp. Doesn't allow variable temps though like lower in am than pm. The vSmart app is similar except it's possible to create new profiles with different temps. Is the vrc 700 even available to...

@UpgradeME I see, I assumed @vulcancontinental was on about the vSmart as Bunnyman mentioned. @Bunnyman what is the 700? Who makes it? Do you have a url? Does it modulate with my ecotec630?

I've a vSmart sys pack on its way. I didn't think / didn't find anything to suggest vaillant where releasing additional controls. Back in Jan 2013 vaillant & engineers kept telling me a new wireless control would be released soon. I stopped pestering them and my HE, in 2014. vSmart was released...

UpgradeME did you ever upgrade to vSmart, if so hows it going and was it worth it? Lastly did it work with the vr65?