GROHE 34438003 Grohtherm 1000 Shower Thermostat, It arrived the next and took five minutes to install

GROHE 34438003 Grohtherm 1000 Shower Thermostat, It arrived the next and took five minutes to install

Good product and good delivery service.

This has to be the best looking shower bar ever. Update will come after fitting.

GROHE 34438003 Grohtherm 1000 Shower Thermostat

  • This product comes with a 5 year manufacturers warranty
  • Constant water temperature thanks to reliable GROHE turbos tat technology
  • GROHE cool touch never too hot to handle
  • Safe stop plus extra safety and scalding protection
  • GROHE eco joy with water saving function for reduced consumption
  • Eco button reduce your water consumption by up to 50% at the push of a button
  • GROHE metal grip high grade metal handles for usability and high durability

This has to be the best looking shower bar ever. Update will come after fitting.

Nice product with decent metal handles. . I am delighted that in this model grohe used decent metal handles (sadly in many other producst grohe moved to cheap plastic stuff which does not look promising). This one has nice looks, feels solid and reliable. One warning though – the buttons that unlock the temperature and flow limitations are plastic. The temperature control and water flow limiter features are a nice touch and should help conserve water.

I replaced an older version of this unit which was straightforward. The unit itself is well made and works well with my combie boiler.

GROHE 34438003 Grohtherm 1000 Shower Thermostat : I replaced an older version of this unit which was straightforward. The unit itself is well made and works well with my combie boiler.

One Reply to “GROHE 34438003 Grohtherm 1000 Shower Thermostat, It arrived the next and took five minutes to install”

  1. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    This is my 3rd and all have been very good. The only down side is lack of service support if you live in the south of europe.
  2. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    This is my 3rd and all have been very good. The only down side is lack of service support if you live in the south of europe.
    1. A good solid bar shower and easy to fit, the claim of constant temperature even when taps used elsewhere in the house does not seem to be true in my case, with that in mind you can probably get equally as good for a fair bit cheaper.
  3. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    A good solid bar shower and easy to fit, the claim of constant temperature even when taps used elsewhere in the house does not seem to be true in my case, with that in mind you can probably get equally as good for a fair bit cheaper.
  4. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Great quality – brought this to replace another brand of. Great quality – brought this to replace another brand of the same price however this is far superior and cannot fault this item.
    1. Great quality – brought this to replace another brand of. Great quality – brought this to replace another brand of the same price however this is far superior and cannot fault this item.
  5. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    It arrived the next and took five minutes to install. It arrived the next and took five minutes to install. The only fiddly bit is setting the temperature and the instructions don’t help. It is necessary to take out the insert on the thermostat control. Take the small screw out (carefully)and then turn the blue control to your desired setting. One last thing, take your clothes off first you need to run the shower.
    1. It arrived the next and took five minutes to install. It arrived the next and took five minutes to install. The only fiddly bit is setting the temperature and the instructions don’t help. It is necessary to take out the insert on the thermostat control. Take the small screw out (carefully)and then turn the blue control to your desired setting. One last thing, take your clothes off first you need to run the shower.
  6. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Thermostat is on the left,which is where it should be. If you’re going to fit the ‘s’ unions, then you’ll probably need a pair of thread extenders which are very pricey & hard to find. Upside is the ‘cool touch’ feature, actually works on this model.
  7. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Thermostat is on the left,which is where it should be. If you’re going to fit the ‘s’ unions, then you’ll probably need a pair of thread extenders which are very pricey & hard to find. Upside is the ‘cool touch’ feature, actually works on this model.
  8. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Replaced my britan unit with this one. Replaced my britan unit with this one. Up and running in 5 minutes. . Should have bought german originally .
  9. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Replaced my britan unit with this one. Replaced my britan unit with this one. Up and running in 5 minutes. . Should have bought german originally .
  10. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Good unit, awful fitting instructions. . This looks good and was easy to fit to replace our old shower mixer. The problem came when we found that the maximum temperature of the water coming out was too low (it was just tepid). The pictorial instructions that say how to fix this problem are awful and only make sense once we’d seen a video of how to make this adjustment. The unit is now adjusted and working properly, but a bit of thought regarding the instructions would be a great improvement.
  11. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    Good unit, awful fitting instructions. . This looks good and was easy to fit to replace our old shower mixer. The problem came when we found that the maximum temperature of the water coming out was too low (it was just tepid). The pictorial instructions that say how to fix this problem are awful and only make sense once we’d seen a video of how to make this adjustment. The unit is now adjusted and working properly, but a bit of thought regarding the instructions would be a great improvement.
    1. It looks good and works well. . I recently bought a grohe shower head and a hose. Having seen the obvious high quality german (vorsprung durch technik) engineering i decided to buy this mixer to replace an older cheaper one that was seizing up. I was pleased to see the fitting dimensions on amazon and this made replacing the old mixer easy (150 mm centres). It worked great first time with no further adjustment than turning it on. It is pre-set to 38 degs c which is about right but you can decrease the temperature and/or the flow rate or increase them by pressing release buttons. I didn’t need to do that but i tried it out anyway and it worked fine with no sudden change in temperature when i changed the flow rate, unlike most mixers. It’s designed to maintain its temperature almost instantly when the supply pressures change due to other taps or flushes in the house etc. I’ve not had it long (one shower) but i will add to the review if necessary after a few weeks of use if i see any problems. The instructions are too tedious and in many languages and in small print, as usual.
  12. This review is from : GROHE 34438003 Grohtherm 1000 Shower Thermostat

    It looks good and works well. . I recently bought a grohe shower head and a hose. Having seen the obvious high quality german (vorsprung durch technik) engineering i decided to buy this mixer to replace an older cheaper one that was seizing up. I was pleased to see the fitting dimensions on amazon and this made replacing the old mixer easy (150 mm centres). It worked great first time with no further adjustment than turning it on. It is pre-set to 38 degs c which is about right but you can decrease the temperature and/or the flow rate or increase them by pressing release buttons. I didn’t need to do that but i tried it out anyway and it worked fine with no sudden change in temperature when i changed the flow rate, unlike most mixers. It’s designed to maintain its temperature almost instantly when the supply pressures change due to other taps or flushes in the house etc. I’ve not had it long (one shower) but i will add to the review if necessary after a few weeks of use if i see any problems. The instructions are too tedious and in many languages and in small print, as usual.