Nest v Hive v Tado
- Thread starter srhutch
- Start date
i've got a 1st gen Nest in my garage from last black Friday. Never fitted the bloody thing :lol:
TitanTim said:
I'd be interested to know how that works other than fitting more 3 way valves in the system. My stat (hive) simply controls the boiler and times, not where the water flows.
I use remote try's in each room that open and shut them on individual time and temp programmes.
Multi zone is perfect. I control each room by time and temp. Eg 3rd bedroom floor is shut down all day except early am and late pm. Guest rooms cold unless needed. Lounge warmer in evening, etc
Reduced my costs greatly.
Reduced my costs greatly.
I wonder if that would help with my starvation issue, i.e. the furthest away bedroom remains cold unless really cranking up the heating with as a result that the lounge is like 23 degrees and that bedroom 18.
All radiators have thermostatic valves, and despite multiple balance attempts, new boiler etc - it has never been resolved to the point that I have had to put a dehumidifier at that side of the house to avoid it getting damp.
All radiators have thermostatic valves, and despite multiple balance attempts, new boiler etc - it has never been resolved to the point that I have had to put a dehumidifier at that side of the house to avoid it getting damp.
pvr said:
PVR, this is what i used to suffer from. As soon as you start sensing and controlling the boiler with remote TRVs (which call the boiler to fire) this will end your problems. In this way all zones can be satisfied and vales closed, and only the rad and valve calling for heat will receive the hot water.
Can you do a partial installation of that Dario? Not all my calves are replaceable such as the towel heaters and the kitchen radiators which have some more fancy decorative valves. The ones that I am interested in do have normal screw on thermostatic valves at the moment.
Out of interest, why would it currently not work if I put the radiator in that bedroom on 24c for example, and the ones in the lounge on 20? It seems that when the lounge reaches that temperature it switches the heating off irrespective of the temperatures elsewhere in the system? If I put the thermostat in that room, the heat in the rest of the house is unbearable even though the valves are set to 20.
Out of interest, why would it currently not work if I put the radiator in that bedroom on 24c for example, and the ones in the lounge on 20? It seems that when the lounge reaches that temperature it switches the heating off irrespective of the temperatures elsewhere in the system? If I put the thermostat in that room, the heat in the rest of the house is unbearable even though the valves are set to 20.
pvr said:
Ive done a partial number of valves in my home as i wanted to try it and some of the vales will need to be replaced in their entirety because the top unit will not fit or no adaptor is available. so i run my home in the way you have suggested.
Any room that is not controlled by the local vale/system is still the standard clumsy TRV. and you get the heat that is regulated by the valve, BUT only when the boiler is being called to run. I guess that in your case, the main system thermostat is in the living room / lounge and when that is the set temperature, the system switches off the boiler.
so irrespective of what temperature you set that TRV in the farthest away room, the boil has no knowledge of that that valve wants from it. hence, living room satisfied, all rooms receive no further hot water irrespective of any heat demand in any room other than the living room.
hope this helps.
PS what you're doing is what i was doing until the individual valves and master boiler control.
Ok, so if I get you right - the new valves you have CAN invoke the boiler to switch on and deliver water, is that right?
The "classic" TVRs don't seem to work as when I set the lounge at 21 on the valves, and put the thermostat in the kitchen where it is 17c, the lounge will end up about 23 by the time that the kitchen reaches 19 which would be the temperature I would have set it at.
So do you still need a central thermostat anywhere or is your whole system now regulated by the new valves and their set temperature?
The "classic" TVRs don't seem to work as when I set the lounge at 21 on the valves, and put the thermostat in the kitchen where it is 17c, the lounge will end up about 23 by the time that the kitchen reaches 19 which would be the temperature I would have set it at.
So do you still need a central thermostat anywhere or is your whole system now regulated by the new valves and their set temperature?
Pvr
Totally agree with Dario and that's how my system is built. I do not have the wireless TRV's on some rads and towel tails so as to act as a pressure relief.
If your lounge thermostat says you're at temp then it shuts off the boiler. End of. I therefore have the hall stat set to say 22 and hall rad at 20c this stops it cutting out too soon. Meanwhile lounge is at 22 and still gets supplied.
Later I'll take an snap of the system and post it so you can see.
Totally agree with Dario and that's how my system is built. I do not have the wireless TRV's on some rads and towel tails so as to act as a pressure relief.
If your lounge thermostat says you're at temp then it shuts off the boiler. End of. I therefore have the hall stat set to say 22 and hall rad at 20c this stops it cutting out too soon. Meanwhile lounge is at 22 and still gets supplied.
Later I'll take an snap of the system and post it so you can see.
An am and an evening shift is all I run it for.
In general water cools fastest from a higher temp than lower.
Keeping running the boiler is also inefficient.
In general water cools fastest from a higher temp than lower.
Keeping running the boiler is also inefficient.
When I looked into the water heating side, the conclusion was at that the time that it was more energy intensive to heat from a much lower temperature than keeping it "topped up" so to speak.
I never hear the boiler go on unless straight after a shower or so, but during the day it only kicks in when you do the washing up or so.
I am happy to be proven wrong though as I can easily switch the timings.
I never hear the boiler go on unless straight after a shower or so, but during the day it only kicks in when you do the washing up or so.
I am happy to be proven wrong though as I can easily switch the timings.
