Gas Regulator needed? Hayward H150FDN

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Sitting Duck

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Jul 19, 2020
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Atascadero
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I thought I was getting such a deal finding a used Hayward pool heater for $250. Thousands of dollars later, after digging 7' deep and having a plumber T off the 2" main line and installing a larger gas meter I am ready to take advantage of the wonderful savings haha.

My question is, do I need a gas pressure regulator between the new 1.5" ( Which will be reduced even further to fit the heater) gas line and the heater?
The gas company guy said that I now have 8 cubic feet of gas pressure now and the heater has an internal regulator which will reduce it down to 5 ft³ or PSI whatever however that works. The plumber doesn't know and he thinks I should install a regulator. Those regulators are almost impossible to come by with the pandemic and the supply chain. It could be months and a lot of hassle. I would just like to hook the gas directly to the heater and call it good but am I little cautious. Should I be?
 
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Sitting Duck said:
The gas company guy said that I now have 8 cubic feet of gas pressure now and the heater has an internal regulator which will reduce it down to 5 ft³ or PSI whatever however that works.
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This makes no sense.

You're asking if you need a regulator, so you need to provide accurate information.

None of the people who came out could tell you what you need?
 
Need more info. The nat gas heater has a pressure referred to as WC at the gas valve. Too high will damage the main valve. Where is the T in the line amd where is the main regulator?. What other gas appliances do you have
 
I just the Gas Co. 2nd largest gas meter installed. There is a 2" line running about 200' up to my house. With a 2" line. They T"d a new 2" line at the top about 25' from the heater. They reduced the line to 1 1/2 in and will reduce it again to a 3/4 inch pipe to connect to the heater. The Gas Co said I could just hook it directly to the heater and the internal regulator would reduce the gas flow to an appropriate level. The plumber thought I should install a regulator. I have called multiple pool people but nobody will bother with the heater and plumbers don't want to deal with it either. The gas company could only say so much. I've called Hayward 4 times and left messages
 
With that size line, it's probably low pressure that you can connect without a regulator.

However, one does not speculate or guess about these things before connecting to equipment and trying to operate.

You have to know for sure or serious injury or property damage can happen.

Get a qualified gas contractor to do everything right.
 
Did they T off after the meter or before? How about you post a pic of the whole meter amd include the piping. I'm trying to figure iutnifnyou have a regulator for the new meter before the meter which you should, amd if the T is after this point if not you likely need one. Does the plumber have a manometer? Easy to check with the proper tool
 
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