[Sumo Guy]

I am getting a custom home built in the San Antonio, TX area. I was wanting to install two gas tankless water heaters. Can anyone give me information on them?

My builder seems reluctant to install them and wants to go with the conventional 50 gal heaters. Has anyone had any problems with them?

Are they more difficult to install? I was planning on locating them outside. One for the master bath suite that will have shower/bath/washer/ and two sinks. The other will be for the rest of the house: two full baths, one 1/2 bath, washer, kitchen, etc...

Any helpful hints/info will be appreciated.