Extending gas pipe?

[GizzyGone]

I’m replacing my water heater, but the new one has a larger footprint.

This necessitates moving supply lines around.

I’m curious how much affect adding two 90* elbows, and 2 feet of pipe would harm gas flow? I’ve been reading about gas pipe calculations, but it doesn’t specify how elbows affect flow (if at all).

This tank is also 50k Btu vs the 40k I replaced.

The main reason to add the elbows and nipples is to extend the supply over, while avoiding a drain pipe from a toilet above.

 

[Reach4]

http://www.pressure-drop.com/Online-Calculator/ has that ability, if you would want to use it. However

I was hoping to find a simple rule of thumb such as a 1 inch elbow is equivalent to 4 ft of straight pipe. This search turns up info:
gas elbows "natural gas" "equivalent length"

You will see calculations of K and L, but not clear pictures of what they represent. I was hoping to find simpler.

 

[Sponsor]

 

[Plumber69]

I’m replacing my water heater, but the new one has a larger footprint.

This necessitates moving supply lines around.

I’m curious how much affect adding two 90* elbows, and 2 feet of pipe would harm gas flow? I’ve been reading about gas pipe calculations, but it doesn’t specify how elbows affect flow (if at all).

This tank is also 50k Btu vs the 40k I replaced.

The main reason to add the elbows and nipples is to extend the supply over, while avoiding a drain pipe from a toilet above.

Don't worry about it, I do it all the time.