Because the ASME likes the idea of pressure vessels being round as round is stronger
Standard meter will suffice, need to know pressure from meter to house. Size pipe appropriately for gas pressure coming into house X distance to water heater. Gas company or plumber should be able to help with this calculation.
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I like to install two tanks -- if one goes down you still have hot water -- when you connect two tanks -- i would run cold water to first tank into top of cold water inlet -- then come out of the hot and run it to the bottom of the next tank where your drain valve is -- just remove and install a tee and put the drain valve back in -- then come out of the top where the hot water outlet is and install a by-pass valve so if one tank leaks you can turn the bad tank off and still have hot water till you can install another tank -- i have done this many times this way -- works good if you have enough room for two 50 gal tanks
a round
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Because the ASME likes the idea of pressure vessels being round as round is stronger
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It is a water heater, not a hot water heater. There would be little point in using a hot water heater. I assume that is your point.
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It's called water heater. There isn't a reason to heat hot water
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It's because "hot-water" is a compound adjective, modifying "heater". It's not for heating water, it's for heating a house with hot water. There are many types of heaters that heat water, but only a hot-water heater is used for providing heated water for domestic use. A hydronic boiler also heats water, but it's only for use in radiators.The name "Hot Water Heater" is completely wrong for any use. There is no need to heat hot water. IT has always been "water heater". The term hot water heater has just been used for years because people don't realize the difference. It has always been WATER HEATER.The first answer is jibberish and makes no practical sense at all.
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