Natural gas to propane

JamesW

TFP Expert
Mar 2, 2011
16,324
I'm finding it difficult to believe that the existing line is not sufficient for the additional load.

Who's telling you that the line isn't big enough?

Unless the gas company is saying that the line won't work, I would get another opinion.

It really doesn't make sense that the existing line is too small for basic service.
 

Newdude

Well-known member
Jun 16, 2019
968
NY
And the utility is usually THRILLED that you will be giving them more business. At least by me, gas and electric jump to upgrade you for free, knowing they will make the money back 100 times over.

*edit* unless you upgrade to commecial. Once they know you are amking money off them, they want a piece if the pie. But yours should be strictly residential and not matter
 
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skimmerswimmer

Well-known member
Jul 30, 2013
333
Long Island, NY
When my 336k BTU pool heater was installed, they simply added a T to the line prior to the old meter, ran a new pipe over to the pool pad, and added a new meter just for the pool. The house already had a gas fireplace, gas grill, gas oven, gas cooktop, gas dryer, gas boiler and gas hot water heater. I doubt your existing line to the house is too small, especially since most of the high BTU appliances in the home are used in the winter time (boiler and fireplace) when most pools are not in use.
 
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setsailsoon

LifeTime Supporter
TFP Guide
Oct 25, 2015
1,456
Stuart/FL
It occurred to me many reading this thread my not realize why it's so obvious you don't need a new line. Normal delivery branches that run to your house at 5 psig. 5 psig is equal to over 130 in wc. The pressure in your house is normally regulated down to 7.5 in wc. You can easily handle a couple of in wc drop in your meter or absolutely worst case another meter.

Chris
 

malba2366

Well-known member
Jul 27, 2016
50
Middletown, NY
So, we are still under construction (see thread in signature). The plumber came to hook the heater into our homes natural gas line and had some bad news for us. In order to do it, we need to call the gas company and get a different meter, and they may require a new gas line to the house. Also, he would have to replumb my entire house because it isn’t done appropriately to handle the BTUs that my house is currently using. What it boils down to is $$$. More than is in our budget.

What I’m wondering is will I need to change out my entire Hayward universal h series heater 400k BTU for a propane one or is there a conversion kit? It’s brand new and has only had water flowing through it for a month and a half now. We can get propane hooked up very easily as we have space for a tank or two.

TIA for the help.
Surprised you need a new line...did the Utility determine this, or did this plumber? If the plumber did, go to the utility local office and ask for someone in the natural gas engineering department and speak with them. Another option at this point is to ditch the Gas heater altogether and go with a Heat Pump which is actually on par or cheaper to operate than a NG heater. Doesn't look like you have a spa, so a heat pump would work well for you...even if it costs a little more to operate than NG (which it probably won't...dependent on your utility rates), you will NEVER recoup that $5K in utility savings.
 
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Cephrael

Gold Supporter
Apr 19, 2019
150
Massachusetts
Surprised you need a new line...did the Utility determine this, or did this plumber? If the plumber did, go to the utility local office and ask for someone in the natural gas engineering department and speak with them. Another option at this point is to ditch the Gas heater altogether and go with a Heat Pump which is actually on par or cheaper to operate than a NG heater. Doesn't look like you have a spa, so a heat pump would work well for you...even if it costs a little more to operate than NG (which it probably won't...dependent on your utility rates), you will NEVER recoup that $5K in utility savings.
This was from the gas company. Our current line couldn’t handle the additional load, and getting a bigger meter would not have helped. So second service is our only choice.
 

JamesW

TFP Expert
Mar 2, 2011
16,324
It seems odd to me that the supply line was sized at 250 cubic feet per hour.

If that's accurate, in my opinion, the gas company should run the new line at their expense. I would ask them to cover the cost.

Typically, the natural gas utility is responsible for maintaining and operating gas pipeline and facilities up to the residential gas meter. All equipment and gas supply lines downstream of the residential meter are the responsibility of the customer.

 

Cephrael

Gold Supporter
Apr 19, 2019
150
Massachusetts
When was your house built?
1986

It seems odd to me that the supply line was sized at 250 cubic feet per hour.

If that's accurate, in my opinion, the gas company should run the new line at their expense. I would ask them to cover the cost.
They base the cost of adding the new line on the amount of expected revenue. So if I was doing a whole house and the pool, it probably would be free. However, this is a secondary line, so it will be less. My parents tried to add gas for their stove only and were told $24k and their house is only 30’ from the street. So $5k isn’t that bad.

What about a heat pump? Your pool builder should have recommended this after the above issues...
At this point I don’t want to do anything more with my builder.