I have a property into which I am having a replacement (combi) CH boiler
Currently there is a basic wired thermostat in the hallway, at the end of a
less than (ascetically) ideal wiring run, though as I am moving the boiler
to an alternative location that will have to be replaced anyway
I understand that I can get a wireless thermostat/controller, but what are
pro/cons of this?
Do the batteries run out unexpectedly and leave you without heating? (or
have to be replaced frequently)
I am looking for a comprehensive controller, preferably with different temp
settings for different times of the day
can I get this functionality in a wired thermostat?
finally note that I do not want an internet connected device.
I have a salus wireless, it gives a battery warning if low.
I find it ideal as I can move it around to the room I am using.
It also has setting for time of day and temp.
Bought from ebay:
Yes. A wired programmable thermostat would do what you want. The
Danfoss TP9000 is a two channel programmer which would also turn off the
hot water when you don't want it to heat up.
Heatmiser make a range of programmable thermostats. If connected to the
internet they do allow access from an Android device, but they don't
have to be connected.
Both the above allow use of a remote sensor. I have earlier versions of
both the above at separate locations.
The Worcester combi I have actually has its own programmer which allows
the hot water to be switched off. Stops the boiler running at all and
keeping a little bit water hot all then time. Perhaps you like to waste
Certainly. I have a digistat 3 which meets all of my similar needs.
Other similar items are available from other vendors.
The house we have recently left had a wired programmable thermostat. I
cant recall the make but it worked well. Yes when the batteries ran out
it did cease to function but I routinely replaced them (two AAA)
annually to avoid the issue.
This has reminded me to buy another for our new home
no need for wiring.
You can move the stat about. (note that can also be a con if you move it
to somewhere already controlled by a TRV - you may just end up defeating
your boiler interlock)
See last pro above, and
Batteries need replacing (although they will probably last several years)
May have connection problems of the transmitter and receiver are too far
They might do - but usually last years, and are commonly available types
That's a programmable stat or prog stat. You probably don't want a full
"programmer" since you have no DHW re-heat to control.
Note you will come across two types of prog stat - "normal" and
The normal ones allow you to specify a number of different windows
during the day, and (usually) also specify the temperature of each. When
the new time slot start, the heating will fire if required and keep
going until the required temperature is reached. So if you way I want it
to be 21 degrees between 7am and 9am, it will turn on at 7am, and will
reach 21 degrees some time later.
The optimising one will attempt to learn the heating characteristics of
the property, and fire before each new time slot, so that when the slot
starts, the temperature is already at the preset value. So using the
example above it might fire the heating at 6am, so that it will be 21
degrees at 7am. Note that with properties that are difficult to heat,
this might mean the heating fires hours before the actual time slot.
Does the move around the house and stuff.
Works fine with out combi and a single zone.
As already suggested, the trick is to move it to the room where you want
the temperature to match the thermostat.
We generally keep in the front corner downstairs room on the North facing
wall, which is usually the coolest room in the house.
Thermostatic valves on the radiators which gives reasonable protection
from over heating the rest of the house.
AMD FX-6300 in GA-990X-Gaming SLI-CF running Windows 7 Pro x64
On Monday, 22 October 2018 09:44:53 UTC+1, tim... wrote:
To get multiple temps at different times you need a programmable stat. Yes
you can get them wired. And yes, when the batteries run out the heating is
left on full blast all the time on some. And yes, the batteries will die &
leak, killing the thing in short order. And no, they're nothing like as rel
iable as the old bimetals. And nothing like as easy to use as a bimetal. I
got rid of the one here & been perfectly happy with the bimetal.
Wireless ones are great if you want to lose the thing, have some oik stand
on it & break it etc.
Yes. Although wired, they are often battery operated for the electronic
part, But with a pretty long life.
You might also look into weather compensation. Trouble with a single stat
is it only measures the temperature in that area. WC does seem to make the
system more efficient in gas use overall. At a cost.
*England has no kidney bank, but it does have a Liverpool.*
Dave Plowman email@example.com London SW
The hallway is not the ideal place for a thermostat. You are much better
positioning the thermostat in the room where you sit/live the most and
make that room most comfortable for, say, watching TV in the evening.
I've only had experience of a couple of basic wireless thermostats
(circa £50) but:
The batteries last for over a year and there have been low battery
The controllers that I've had can be programmed for at least 3 on/off
times per day and for different temperature settings for each on time
and for each off time (the latter can be set for frost protection). They
have also had "shortcut" modes of setting up, say, same settings for
week days and a different setting for a weekend.
Search the internet for a suitable wireless thermostat and then check
Youtube for and instructional video.
You may find that these days more of the all singing, all dancing
wireless controllers come with an internet option but you don't have to
use them this way.
"Holiday Mode" is good. Set a min temp for whilst you are away and set the
number of days you will be away. Come back to a warm home! Some have "PArty
Mode" which enables you to add a number of hours of continuation of the
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