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I have a Duratherm geyser installed in a new house in 2015. Geyser was installed by registerred plumber and according to specification. I was given a 10 year warranty. After 3 years my geyser is leaking. Installer has been to site and confirmed the geyser is faulty. They have been trying to contact Duratherm for warranty replacement for a week by phone and mail. I have tried same. no response at all. Duratherm please contact me to resolve.