Question about Teledyne Laars Laars Lite 2 Pool Heater 125,000 Btu / Propane Gas

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Laars Lite spa heater leaking at header after reconnected plumbin

I have a laars lite 2 spa heater that I needed swap the input/output header from the right to the left side. Once reconnected to the new plumbing, both the input and output pipes are leaking at the connection to the header. I used new 2" flange gaskets and sleeves to no avail. When I tightened the flange bolts, the 2" flange gaskets (which seemed a bit too large), did manage to slip into place. Since they were both leaking, I removed the connections, and was surprised that the flange sleeves were dimpled in one place, as the inside of the header has some kind of obstructing tab. This was true for both the water inlet and outlet. Are the bolts not meant to be tightened down all the way?

I also tried the old gaskets, which were pretty worn. They also leaked. They seemed to have a smaller inner diameter, and there was no sleeve present.

I am using factory parts (as per the manual), to no avail. Any suggestions?

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Old laars heaters had only 1.5' Flanges. Newer ones had 2" and 1.5" the difference being the inside hole. so you can get 1.5" gaskets 2' by 1.5" gaskets and 2" gaskets. If you have stanless steel heat sinks wich I think you may have you need to match the right gasket to the pipe size. The gaskets should slide over the pipe easly and snug firmly when you tighten them. Then be sure you tighten each one eavanly. The obstructing tab is there to keep 1.5" sinks from going in to far and interfearing with the by-pass assembly.I hope this helps, I know what I'm talking about and it sounds confuseing to me.If you measure the hole in the flange and the size of the pipe and get gaskets that size you should be fine. Good luck.

Posted on Dec 21, 2009

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