A thermostatic radiator valve (TRV) is shown in the image to the right. You will find it on the pipework at the top or bottom of your radiator. It gives you greater control over the heat from each individual radiator. Each TRV can be set to a temperature to suit you, so you can have different temperatures in different rooms.

The fitting of a thermostatic radiator valve (TRV) to a radiator gives room temperature comfort control and can help to avoid overheating if a radiator is too large for the room. This piece of equipment provides an extra fine tuning control to central heating, by allowing individual room temperatures to be maintained by sensing room temperature and automatically adjusting the flow of hot water into the radiator.

The TRV controls the radiators temperature by sensing the room air temperature and automatically opening and closing the flow to the radiator to maintain a preset temperature. A manual valve controls the temperature of the radiator regardless of how warm the room already is. On large radiators (above 1800 watts, or where the radiator is oversized for the room) we recommend TRV because they save you having to get up to turn the radiator up and down, but they are not essential.

Although the vast majority of our customers enclose it, the thermostatic valves should ideally remain outside of the radiator cover if they are to sense the temperature of the room correctly. If you would like to keep the thermostatic valve outside of the radiator cover, the side of the cover that the valve is on will need to fit between the radiator and the valve. When fitting, a small cut will need to be made in the cover to receive the pipe between the radiator and the valve.

It's best to set your TRV to a middle setting and see if the room is warm enough. If the room is too warm, turn the TRV down by 1, if the room is too cold, turn the TRV up by 1. A middle setting corresponds to approximately 20ºC (68F). Do NOT turn the TRV fully ON or fully OFF to make the room you are in warmer or cooler - this will waste fuel. Turn it a little way and let it do the work.

A TMV is used to control the temperature of the hot water supply to the manifold. It is necessary when the design temperature is significantly lower than the supply water temperature from the heat source. The TMV installs in the plumbing supply and return lines between the manifold and the heat source. It blends return loop water from the manifold and supply water from the heat source to a manually set temperature.

A No its a manual valve but the 'Traditional' valve found on our valve page, is thermostatic and comes in a range of brass, chrome, and nickel. We are currently manufacturing a further range of traditional style thermostatic valves, and will be adding these to our range in September 07.

New houses may have this, because of new housing regulations. However, existing older systems will not usually have an AUTOMATIC BYPASS (PRESSURE BALANCING) VALVE, or ABV fitted to the system.These are required to cater for the possibility that the majority of radiators are closed off due to low TRV settings, but high room thermostat settings keeping the boiler cycling. Since the circulating pump would still be running, the pressure in the system would increase.

A:I am assuming here, that the radiator has already been removed, and that the leak is from the horizontal part of the valve, not the valve stem. The stem, that the shut-off knob pushes on to, tends to have a few drips come out of the top, as the internal washer moves from the top to the bottom of the valve seat. This is usually nothing to worry about, and it is NOT what we are talking about below.

Geez, wouldn't that be nice! To date we have not found a way to change your hose without lowering the fluid in your radiator. When we find it you'll be the first to know.

Ordinarily the radiant tubing must run at a lower temperature than the baseboard. This means that a mixing valve is used to provide a lower temperature for the radiant heating tube. It might be possible to avoid the expense of the mixing valve if the baseboard can be run at a lower temperature and if you select a radiant tubing with a high temperature rating, but the situation will not be ideal.

Back in the 50s, MCI installed radiators in the back of the cabin structure above the floor. This idea was to prevent an ongoing problem of leaves, dirt, and debris being sucked in the low slung radiator. Over the years, all manufacturers install their radiators next to the engine on the left side. The main reason is roads are far superior to what they were 50 years ago and there is not as much debris on the highways.

Visual inspection at periodic intervals (most easily performed while checking the oil level) is always a good money saving idea. A great deal about the condition of the ENTIRE cooling system can be quickly learned by checking both the INSIDE and OUTSIDE of the radiator! Inspect the radiator for coolant seepage or stains around soldered seams of the sides, top and bottom of the radiator. Remove bugs and debris from the finned core area while checking for coolant leaks.

A solenoid valve is an electrically-activated mechanical valve that opens and closes when power is applied to it. This kind of valve can be installed and wired into a Sterilight system which is monitored. If the UV intensity were to drop below the recommended level the solenoid would then be activated and automatically shut down the flow of water. This will keep contaminated water from getting through the UV system.

Once upon a time, most engines came with two valves - one to let air and fuel in, and the other to let burned fuel and air out. High-performance engines, such as Chrysler's famous Hemi V8s, came with massive valves. The problem with this was that the big valves were inefficient at lower engine speeds, leading to both gas mileage and pollution problems.

Yes, they will. Our unique removable magnetic front panels allows access to all radiator parts and valves.

A - Thermostatic valves control the radiator temperature via a sensor which senses the air temperature in the room. Once the preset temperature has been reached the valve automatically opens and closes the flow of hot water to the radiator to maintain that temperature. A manual valve does not control the temperature of the radiator regardless of how warm the room is already. If the room gets too hot, you can turn it off easily. A - They are both measurements of heat output.

Remove the front grill by undoing the two screws on the front face. It will still be held in place by two plastic clips at top at the edges. You will need to release these clips using a screwdriver pressed down from the top of the grill. It should then pull forwards. Now remove the front bumper by undoing the 6 retaining bolts. You will need a 13mm socket to do this. Two bolts are visible from where the front grill was.

Replace it. In most VWs this is pretty easy to do (1 hr), and a new radiator (which is = OEM) can be had for around 100-150US$. The hard part, esp. in older cars and in Europe, is finding the right radiator. Even VW does not keep track of what car left the factory with what radiator. Furthermore, the serial numbers are not very useful because they may not be available anymore.