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Gas line size for 250k btu natural gas pool heater
Here is my current situation:
We built a new pool last fall and the heater recommended for that size pool was 250k btu's, so that is what we bought. We probably should have investigated installation better prior to purchase, but that ship has sailed.
We have a 500k gas meter per the gas company.
The gas meter is located at the back of the rear neighbor's property (long story). So it is 300-400 feet away from my house.
We have a 40k water heater, a 80k furnace in the house, a 125k hanging furnace in the shop and now this pool heater (all appliances less than 5 years old). The gas company says we are fine for the meter. I'm assuming because the likelihood of the pool heater and both furnaces all running at the same time is very slim. Is that correct?
Secondly, the gas line to the house from the remote meter is 1". There is already a tap in the basement of our house, 50-60 ft away from where the pool heater will go. It is 3/4" in the basement. The pool heater instructions say it needs 1.5" line to the heater. Is that right? What is the downfall of having a 3/4" line from the basement to the pool heater? Any other suggestions?