Onoff Posted February 5, 2017 Share Posted February 5, 2017 Prompted by @dogman's comment over on @Crofter's thread: The 10 year old got out of the bath tonight claiming it was too hot. Was in there long enough! So it got me thinking of TMVs. Separate hot and cold in 15mm to these taps: Anything I can fit here? Cheers Link to comment Share on other sites More sharing options...
ProDave Posted February 6, 2017 Share Posted February 6, 2017 Thermal mixer bath filler? I've seen them in hotels so they exist. BUT the flow rate from them was disappointingly slow. Link to comment Share on other sites More sharing options...
PeterW Posted February 6, 2017 Share Posted February 6, 2017 6 minutes ago, ProDave said: Thermal mixer bath filler? I've seen them in hotels so they exist. BUT the flow rate from them was disappointingly slow. I'm using a mixer with a 3 way valve to do shower, hand wand and bath so that we don't need bath taps. They do have a pretty high flow rate if done properly but most hotels have flow limiting anyway. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 Just chop into the hot and cold in the attic space. You already have joints under the bath, so you could chop it in under there TBH, but personally I despise the thought of not filling a bath thermostatically as I hate to see a bath overfilled with scalding hot water and then cold water being poured over it to cook it back down ?. I also have heard about little ones accidental getting into the bath before the cold has been added and then getting scalded or even dying from the injuries ?. As I have 4 dependants, I have done what @PeterW is proposing, e.g. a thermostatic 3-way diverted and no taps. The only thing I wil say @Onoff is you'll have better flow rates through your tap and the separate TMV than I have through my mixer, but I absolutely didn't want taps on my bath. 1 Link to comment Share on other sites More sharing options...
Onoff Posted February 6, 2017 Author Share Posted February 6, 2017 Still a bit lost on this, being a bit dense no doubt! The TMVs I've seen are "3 port". Hot in / cold in and then mixed and regulated out I guess. I've two separate pipes going to a mixer tap. Where does the TMV go, in the hot pipe? I can see that working so that hot is only ever at a certain maximum and you would just add cold if it was still too hot for some tastes. Do I end up with an unused port on the TMV? Again, dumber than soup I know! Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 you are sort of right but not ( and again happy to be corrected) you are trying to lower the temp of the incoming hot water to a safe level so it goes in the hot feed you will have cold to cold cold t TMV Hot to TMV tmv to hot tap or mixer Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 http://www.willesdenbathrooms.co.uk/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/t/m/tmv-img-detail.jpg this might help 2 Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 A picture speaks ( or in this case, saves ) a thousand words. . Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 be careful choosing, we used TMV3 and 22mm as they will impact on flow rate. If for holiday let get a water thermometer and keep a record of your checks we do them every month. Link to comment Share on other sites More sharing options...
Onoff Posted February 6, 2017 Author Share Posted February 6, 2017 59 minutes ago, dogman said: http://www.willesdenbathrooms.co.uk/media/catalog/product/cache/1/image/9df78eab33525d08d6e5fb8d27136e95/t/m/tmv-img-detail.jpg this might help Gotcha! Understand the idea now. So set at 44 to 46degC? For some reason I find this image easier to understand: Just for home. Need to fit one as the 10 year old has grown up without a bath in living memory! Looking on S'fix there's a Bristan for circa £45 and a Bristan and a Pegler for £50 ish. All good for TMV2 & 3. I assume buy a "name"? The Pegler is preset at 43degC. There's a no-name TMV2 on in T'station for £38. ??? Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 got mine off ebay for half that Link to comment Share on other sites More sharing options...
Onoff Posted February 6, 2017 Author Share Posted February 6, 2017 11 minutes ago, dogman said: got mine off ebay for half that Got a link or was it just a generic jobbie? Cheers Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 It was a while ago. just looked now and there are a lot for between £20-£25 http://www.ebay.co.uk/itm/Altecnic-15mm-Thermostatic-Mixing-Valve-TMV3-CA-100822-/201806511080?hash=item2efc9afbe8:g:ltcAAOSw4DJYlbKm 1 Link to comment Share on other sites More sharing options...
Onoff Posted February 6, 2017 Author Share Posted February 6, 2017 5 minutes ago, dogman said: It was a while ago. just looked now and there are a lot for between £20-£25 http://www.ebay.co.uk/itm/Altecnic-15mm-Thermostatic-Mixing-Valve-TMV3-CA-100822-/201806511080?hash=item2efc9afbe8:g:ltcAAOSw4DJYlbKm Cheers. Never heard of the brand I'll admit. Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 i used them. Link to comment Share on other sites More sharing options...
PeterW Posted February 6, 2017 Share Posted February 6, 2017 Altecnic are what Telford supply with their cylinders for all of the PRV stuff. Well made and pretty reasonable quality. That's good for a 15mm one too ! Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 48 minutes ago, dogman said: i used them. Me too. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 I can't believe we've done this to him so late in the game He was just about to mix some tile adhesive too. Damnit. Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 New tool time Link to comment Share on other sites More sharing options...
Onoff Posted February 6, 2017 Author Share Posted February 6, 2017 47 minutes ago, PeterW said: Altecnic are what Telford supply with their cylinders for all of the PRV stuff. Well made and pretty reasonable quality. That's good for a 15mm one too ! It's TM3 if that makes a difference? On the assumption I need different temperatures at basin and sink then I'll need two? Some jiggery pokery here necessary as the hots are together, basin on the left, bath on the right: Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 50 minutes ago, Onoff said: On the assumption I need different temperatures at basin and sink then I'll need two? Basin and kitchen sink? Link to comment Share on other sites More sharing options...
Onoff Posted February 6, 2017 Author Share Posted February 6, 2017 8 minutes ago, Nickfromwales said: Basin and kitchen sink? Bathroom basin on the left, bath on the right! Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 Spit it out man Link to comment Share on other sites More sharing options...
dogman Posted February 6, 2017 Share Posted February 6, 2017 We have just one for the bath and sink set at 43 deg max It does mean that if you like a hot bath you don't add cold. Link to comment Share on other sites More sharing options...
Nickfromwales Posted February 6, 2017 Share Posted February 6, 2017 I'd also say just fit one and set it as high as you can tolerate at the basin. That'll give plenty for the bath as hands are more tolerant than your 'white bits'. Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now