I have a Jandy Laars LX 400k BTU heater that just died. It was installed in 2004. I was looking to replace it with the Raypak 406A equivalent but my pool guy is insisting that I go with the 336k BTU version because the supply gas line is a 5/8" diameter.
Reading through the Jandy and Raypak manuals, they both say 1 1/4" pipes. Searching on TFP, reading a lot of the same. This heater lasted 18 years and cranked out the heat. I am confused how this is even possible if the lines were too small? Is it possible to have the gas company increase pressure or something so a 400k works on 5/8 pipe? Is it possible with a high pressure meter?
Reading through the Jandy and Raypak manuals, they both say 1 1/4" pipes. Searching on TFP, reading a lot of the same. This heater lasted 18 years and cranked out the heat. I am confused how this is even possible if the lines were too small? Is it possible to have the gas company increase pressure or something so a 400k works on 5/8 pipe? Is it possible with a high pressure meter?
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