Hayward H300 LP test

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Old 05-12-14, 01:39 PM
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Hayward H300 LP test

Hello,

I just bought a house in Jacksonville, FL that came with a Hayward H300 pool/spa heater. There have been some yard drainage problems and the in-ground propane tank from the previous owner is under water and has been disconnected at the heater. I managed to alleviate the drainage problem, but it has been under for quite some time. The regulator on that tank crumbled while I tried inspecting it, but the gauge still says it has 5 PSI in it.

Anyway, I would like to test the heater with a 20lb tank and see if it is worth calling up the propane company to come work on the tank. According to the manual, the heater burns at 300k BTU, needing 11wc (about 15 PSI I think). I believe it has an internal regulator which further reduces to what it needs.

I tried calling the distributor (Sawyer Gas) and they had no notes as to why it had been disconnected. When they disconnected it, all I have is a 1/2" OD copper pipe coming out of the ground, a large gap, and a 1" OD galvanized pipe with a sediment trap.

I know that the 20lb tank will freeze up at the rate I need, but I would like to test and make sure it works. Would this regulator work as it has 0-30psi, high pressure, 3/8 tubing?Amazon.com: Bayou Classic 0-30 PSI Adjustible Regulator/Hose Assembely: Patio, Lawn & Garden and then the various fittings to adapt to the 1" galvanized?

Currently, when I turn the heater on and adjust the thermostat, I can hear the solenoid open, igniter spark several times before it gives up, and close the solenoid, so it appears functional.

Thank you in advance.
 
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Old 05-13-14, 12:01 AM
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Welcome to the forums.

I don't think you are going to be able to use a 20# tank for testing as your heater requires 300K btu.

A 20lb cylinder will produce approximately...
35,000btu at 0 F
50,000btu at 20 F
65,000btu at 40 F
80,000btu at 60 F
90,000btu at 70 F
 
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