If your existing control doesn't unscrew easily, set it to its highest temperature setting (eg “5”) and try again. Be careful to only unscrew the control and not the valve body itself.

You should also think about the range: how far away will you be when you’re watching or listening? For TV watching, the range shouldn’t be much of an issue, but if you’re using the adapter to listen to music —or you’re sending audio from your phone to play over the adapter —you will likely want more range.If your TV has an optical digital audio output and you don’t need the latest Bluetooth standard, the Mee Audio Connect AF-T1 could be a good match for your Bluetooth TV adapter needs. In addition to optical digital, the Connect AF-T1 also has a 3.5mm input and comes with a splitter to hook to an RCA output. At 2.2 x 2.2 x 1 inches, it’s small enough to take with you and features 12 hours of battery life. You can connect two devices at once to listen with a friend. If you don’t have a Hive thermostat, or if you disable Heat On Demand, then turning up a Hive Radiator Valve will only warm up the room if your heating is already on.

The dimension across the diameter of the thread should measure 30mm and the ‘thread pitch’ should measure 1.5mm (thread pitch is the measurement of one thread to the next). The pin height when measured from the top of the valve thread should measure approximately 14mm and the radiator valve must fully close when the pin is pressed no more than 4mm (most thermostatic radiator valves will close with only 2mm of pin movement). For instance, if the sound from your TV isn't loud enough, you can use one to connect a wireless speaker. Or if you want to watch TV late at night without disturbing others, you can pair a Bluetooth TV adapter with some headphones and keep the sound to yourself. The Honeywell Home evohome HR91 & HR92 Radiator Controllers, and the Drayton Wiser Radiator Thermostats, are compatible with most manufacturers of Thermostatic Radiator Valves (TRV’s) with M30 x 1.5mm threaded thermostatic heads. I will admit Hive TRV heads are expensive, however they do link to the wall thermostat, so in a room which without a TRV will be cool, you want the Hive as it keeps boiler running, and in a room where it would be too hot then a simply programmable TRV is good enough. However, they are not always compatible with current and existing TRV’s due to cheap imports and different manufacturing standards. We also recommend that consideration be made to replacing TRV’s over 15 years old, as they may not function properly due to age which would prevent the evohome system from controlling the heating system correctly.The non programmable are OK in same room as the wall thermostat, because the droop (temperature when fully closed to fully open) is large, to the point larger than the wall thermostat, so if TRV is 2°C and wall thermostat is 0.5°C then setting both at 20°C means the heating of the room slows down before it reaches set temperature giving other rooms time to catch up. When you’re shopping for a Bluetooth TV adapter, you want to make sure it can connect to your TV (or computer, if that’s your video source). Most TVs today will have a 3.5mm auxiliary output. Some come with an optical digital audio output or an RCA (stereo) output.

So the Hive TRV sends a demand for heat to the wall TRV which turns it on for 1/2 hour, so with a couple of Hive TRV heads the boiler will not turn off until those rooms are satisfied not as good as Opentherm but some boilers don't have any ebus connection or it is limited as not using the industrial standard of Opentherm, so with an old Bosch boiler which does not have OpenTherm Hive is likely the best compromise. A basic TRV with 1-5 scale does a good enough job. You need to fine tune it for your comfort, I've got it down to 4 3/4 being cosy but not stuffy which is how I like it. Remember: If your radiator has manual (“+ / -”) valves rather than thermostatic valves (with a numbered dial) then your valve body will need to be replaced before proceeding. They're like traditional true wireless earbuds, but the audio settings and listening experience can be customized with the TV Clear companion app, and the transmitter’s low latency streaming technology keeps audio and video in sync so there’s no delay in the audio. For configurations including a valve body: a thermostatic valve body should only be installed by someone competent in the installation of plumbing equipment.You can remove the cover from your Hive Radiator Valve to change the batteries. Remember to keep the batteries away from children as they can be a health hazard. Don’t try to open your Hive Radiator Valve. There are no parts inside that you can service or replace. Once you have enabled Heat On Demand, your Hive Radiator Valve will boost your thermostat automatically to turn on your heating and make heat available to your radiators when they need it.

You may want to be able to send audio to two headphones or speakers at the same time if you’re watching TV with a friend. If you plan use it as a receiver or if you need to use it on more than one TV,a battery will come in handy. The size of the unit can also come into play if you plan to move it around or you don’t want it to be obvious. Best Bluetooth TV adapter alternatives Best TV mounts | Best Bluetooth speakers | Best Soundbars | Best TV antennas | Best cheap TV antennas The idea of a TRV is that it turns off when a room is at a specific temp, but if the room stat says its warm enough where the room stat is, then the TRV will still be open but of no use. The Hive ones can override the HIVE room stat, so that means running the boiler for.......one room. The idea is Hive is a rather cheap non smart wall thermostat without Opentherm or the clever algorithms used by Nest, however by linking to the TRV heads it allows the boilers own system to modulated the boiler instead, turning off boiler means loss of energy through the flue, and the hotter the boiler is when turned off, the more energy is lost, also when the boiler is running flat out it is not running at most efficient, so you only want to turn boiler off when no longer needed, turning it off/on to regulate output means it does not run in an efficient way. It needs to be allowed to modulate (turn down) and once at minimum output the boiler needs to start cycling not wall thermostat as when the boiler does it, when it turns on again it turns on at minimum output, but if the thermostat does it then it restarts at maximum output. So idea it to let the TRV control boiler output due to return water temperature not a on/off wall thermostat. Clearly with an OpenTherm wall thermostat it does restart boiler at minimum output. Using TRV analogue control also means reduced or no hysteresis so better for occupants.If you see a few drops of water when you unscrew your old radiator control then your existing valve body may be leaking. Valve bodies can often be tightened up, but some might need replacing if they are leaking. We recommend fixing your valve body before installing your Hive Radiator Valve. Get advice from a plumber if you’re unsure of how to do this.