http://tanklesswaterheatertoday.com/my-tankless-water-heater-paloma-makes-a-rumbling-noise-when-the-shower-is-set-to-warm/ everything you need to know about tankless water heaters Tue, 13 Dec 2011 11:13:23 +0000 hourly 1 http://wordpress.org/?v=3.2.1 http://tanklesswaterheatertoday.com/my-tankless-water-heater-paloma-makes-a-rumbling-noise-when-the-shower-is-set-to-warm/comment-page-1/#comment-1087 Jamie T Sat, 09 Jan 2010 10:25:31 +0000 http://tanklesswaterheatertoday.com/my-tankless-water-heater-paloma-makes-a-rumbling-noise-when-the-shower-is-set-to-warm/#comment-1087 It sounds like you have pex or a similar plastic water supply piping in your new house. The pipe is held in place by clips in the wall. When you turn on warm or hot water...the pipe expands and slips against the clip in the wall creating the rumbling noise. It sounds like you have pex or a similar plastic water supply piping in your new house. The pipe is held in place by clips in the wall. When you turn on warm or hot water…the pipe expands and slips against the clip in the wall creating the rumbling noise.

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