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Individual radiator thermostat - how to fit these?

Discussion in 'Plumbing and Central Heating' started by netster, 16 Nov 2008.

  1. netster

    netster

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    Like most people, different rooms in my house require different levels of heat.

    I notice this in my office room, which has a lot of computer equipment in it, which means I am either baking in there when the CH is on, and the rest of the house is fine, or temperature is fine, and the rest of the house is freezing.

    Solution appears to be to fit individual radiator thermostats.

    Can anyone tell me the following?

    1.) Where on the radiator do they go? (e.g is it in place of the valve at the bottom of the radiator, which controls the flow?)

    2.) Are they easy to fit/ how do I fit it?

    3.) Is this the same as my just reducing the flow to the radiator using the shut off valve currently at the bottom of the radiator (inlet pipe)?
     
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  3. FourFootMedia

    FourFootMedia

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    1) If you're talking about TRV's, yes they replace the valve at the end of the radiator.

    2) As easy as changing a valve. How easy this is depends on the type of heating system you have and if you need to drain it down first.

    3) Yep, pretty much.


    (this would probably be beter in the plumbing forum)
     
  4. electronicsuk

    electronicsuk

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    I have no idea why this is in Electrics UK, although no doubt the mods will move it soon.

    If your rads are currently fitted with lockshield valves then all these do, as you rightly point out, is control the flow through each individual radiator. At least one lockshield is necessary for balancing, but it wont help much if you want to regulate the room at a set temperature.

    For that, you need a Thermostatic Radiator Valve, or TRV. These, as the name implies, have a thermostatic element to them which will control the flow of hot water into the rad based on the room temperature. It should be relatively easy to fit these in place of your existing valves, as long as you make sure you get everything with the right fittings.
     
  5. netster

    netster

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    Apologies, I have posted this to the wrong forum.

    Thanks
     
  6. gas4you

    gas4you

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    Current regs state that TRV's should be fitted to all radiators except the one in the room that the room stat is in.

    Honeywell do a wireless radiator TRV stat/valve system, but can't remember what it is called right now
     
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  8. Dan Robinson

    Dan Robinson

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    CM Zone

    Pretty expensive, but quite effective - I have had it for two years, and while I am pleased with it I seldom specify it because of the cost,

    The noise the heads make can be annoying for some; and they're not the prettiest things in hte world...

    Stick with VT117s, then you can change the heads to CMZone later - well you'll need to ad the Honeywell/Drayton bodies anyway.
     
  9. hairyben

    hairyben

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    heh. unless your intrested in something I'm installing- 15 zone heating using digital roomstats & electric valves on the convecters, plus a central touchscreen and internet operable interface :rolleyes: , you want TRV's
     
  10. netster

    netster

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    :D

    I am looking for a simple solution, I have standard rads, with the supply coming in the bottom right with a twisty bit on it (the valve)..

    I am guessing that this is the bit that needs to be replaced with a TRV.

    Is this straight foward, or do I need to get a plumber in?
     
  11. hairyben

    hairyben

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    changing the valve is simple, draining/refilling the sys is more hassle.
     
  12. electronicsuk

    electronicsuk

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    Heatmiser by any chance? I've got a similar setup with the addition of a few extra zones wired to contactors for electric UFH.
     
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