Before I choosed Wunda system I checked other company but about good communication and.marketing i choosed Wunda.When I installed the all system found few issue:The first ussie was the blending valve what is was supplied with the pumpset is very poor quality and not was able blending the flow temperature at all, I mean if the boiler sent 55 the valve not was able to do anything about and sent into the pipe work 55. I issued for techical support team and them send the other valve same issue was. I spoken one of the best blending valve UK suplier and find out the valve some poor quality and if the flow rate low like for small room the valve not able to controll the temperature. I try to explain the Wunda tecnical team but they not much want to understanding. After I give up on them and spent about £220 for a other pump set and this problem was sorted the new pumpset was used Esbe blending valve what is controlled brilliantly the flow temperature.Secont problem I found is the boards is poor quality and under the pipe dont have a foil what is important to transfer the heat up.The last is the pipe looks good quality but not give out the heat well. The undefloor system delta T have to be between 7-11 and to reach the 6 have reduce the flow rate a lot. But if the flow rate reduced to much possibly you not get enough heat.I using the system now 2 years so I had a time find out what quality the product and what is the problem with the product.So I not recoment the Wunda supplier at all the product quality is below market avarage and if you spend 20% you can get much better product.Nothing was wrong with the installation, just to make cleare and You not blame on costumer the poor quality product fault. With the same installation just changed the pumpset the system worked right way. Regarding the boards if anyone checking the market can see other suplier board have foil in the pipe line so under the pipe and this way the board transfering the heat better.Just because other costumer not noticing issues is not mean the product is great.
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Wunda Group, designing and delivering award winning underfloor heating for over 15 years.
