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The galvanized vs black has been beat to death on many many forums. Just like tankless heaters it depeneds on where region you live in. In areas that have a lot of salt air from the ocean (I live on the ocean) galvanized is used. I talked to one plumber who threads his own pipe and he...

All the gas lines here from the meter are galvanized. The gas company came by and inspected the meter and galv gas lines, no problem. I did some research and you can use either. Mark, aren't you the one who hates tankless heaters? And tells everyone how terrable they are? Last plumber charged my...

I didn't claim to be in the pluming trade and said this was first tankless install. I posted this for DIY, maybe avoid the mistake. Directions could have been more clear. HD and Lowes doesn't stock solid core Schedule 40 in 3'' or 4''.

I didn't know there were two kinds of Schedule 40 PVC. The wording to me seemed like cell core was something different than Sch 40, and was so eager to install didn't catch it. I decided to relocate WH to an outside utility room after learning that this WH also had an on board heater to prevent...

Thanks Lalit. You and Phil seem to really know your stuff. Rheem and Takagi have very good reviews online and sounds like your friend dug into a little more and Phil has more experience with installing them. I can't remember why I decided on Rheem. Maybe because they still honored warranty. As a...

Yes, the condensating units require PVC vents. Apparently the metal vents can cause a chemical reaction when they drain back into the heater. They also require condensating trap, and have the right slope, like picture above. I looked a the Takagi but it was the non condensating unit, if I'm not...

This is the link, Phil. http://tankless.reviews/best-gas-water-heater/ Maybe it got edited out? Not sure how they reached their recommendations, and hope its as good or better than Rinnai or some of the others. I did read that Rheem allows homeowners to install. Several post claim that Rheem...

Tbaks Phil, I could have done worse and could have done better, I suppose. On this project having to do a lot of work has been really time consuming, although I did work in construction for 15 years. I did research tankless heaters. This website recommend the Rheem hands down, I'm expecting it...

Wow, sounds good. I was about to suggest making sure to have enough room for water treatment equipment. On a big house like that in California a recalculating pump makes sense. It might even make sense for me, but I'm in Charleston and we haven't had any kind of water shortage or restrictions. I...

That's good to hear Phil that Rheem are solid. At first I also considered a circulation pump, Rheem makes one with circ pump, but very glad I just home runned each fixture to manifold with 1/2 inch pex, as I'm getting hot water faster than 3/4 inch copper branch feed. Also, I have a good place...

That's good news, Lalit, your friend did a lot of research. I called Rheem tech support this morning and they were very helpful. I had a minor drip leak at one of the bathroom faucets that was causing the electronics in the heater to activate, so would hear this kind of beeping and electric...

Very good points. I suppose the houses up there are designed with the cold in mind and where to locate tank heater. Most houses along the coast in the South don't even have a basement because water level is just below the surface. We have very moderate temps here. Its just about like northern...

So far tankless has exceeded my expectations. My gas tank heater was outside. I'm in Charleston SC, which is mild climate, but we can get some freezing temps in winter and the gas heater used a lot more gas in winter to keep water hot. See picture of bill, like 10x more. Tank was only 5 years...

Sounds like you got some bad advice from installer on gas line. Everything you read about these says to upgrade gas line. I've also read about 2psi mainfold at each point of use, but thats over my head, and this obviously didn't work out. I can't really hear mine in hallway closet if door is...

I just installed tankless heater and very impressed with it. For a family of 4, and convenient place to install, I would highly recommend tankless.