P.S. the 3/4" gas line is all iron, not the yellow flex line.

592,900 BTUs identified, with more to be added?

I do not have a gas table handy but that sounds like way to much for a single 3/4 inch line.

No more being added, that was the complete list. Ofcourse not all of that would be running simultaneous. I don't know the BTUs for the gas dryer and stove/oven as they are older but was able to find out the exact BTUs for the rest.

The nameplate for the appliances should have their BTU marked.

Gas Dryer: 22,000 BTU
Stove/Oven: 67,000 BTU

I just looked at the gas piping and the existing tankless water heater is piped such that the line that goes to it splits right at the meter into it (which is on other side of wall from meter) so essentially of the list above everything would be on the one 3/4" gas line running in the house except for the existing tankless water heater.

Right, that is why I brought it up since it should be considered

bump. Any experts out there? If so, thanks in advance!

I've been talking to the natural gas company to find out if my existing gas meter is large enough to deal with everything I have planned for it and the response was that it needs to be upgraded. However, they want to charge me $1325 to upgrade the meter. Major OUCH!

I asked what the BTUs are for the existing meter so I could gauge how much of what I have it supports and the response I got was 300,000 CFH. I did some Googling of converting CFH to BTUs and didn't understand the responses.

Anyone know how to convert the 300,000 CFH figure the gas company gave me to see how many BTUs it will cover (from my list of BTUs above)?

If I have to shell out $1325 to the gas company I'd guess switching the electric water heater to tankless is a "no go" based on way too expensive with tacking on the meter upgrade, just would make more sense to keep an electric water heater, I don't like it but it's hard to justify massive amounts of $$ to go tankless. But if my meter is close enough (the reality is only two people live in the house, all of the above things would not be running simultaneous) then perhaps it is a go and I skip the gas meter upgrade.0

Thanks!

1 cubic ft of natural gas is approximately 1000 BTU

So when I total up all of my BTUs it's 682,800. So how do I relate that to 300,000 CFH my current meter is able of providing? I'm guessing the 'H" in CFH is 'hour' meaning 300,000 cubic feet per hour but BTUs are stated per an instant in time so do I need to do some conversion of time here too to figure this out since CFH is apparently per hour but BTUs are per second or some such?

I'm completely new to all of this so I appreciate your patience but we're talking $1325 just to upgrade the meter and I'm trying to figure out how much of the BTUs the current meter is capable of handling.

Thanks again!

This is a quote from the gas company when I asked how CFH and BTU relate to each other, is what she saying correct?:

CFH is cubic feet p/hour & BTU's are british thermal units, same difference. The capacity of the 630 meter that would replace your meter is good to 1.2 million cubic ft p/hr.