[rnln]

Hi guys,
It's time for me to replace my water heater. I have searched and read for hours, but still can not make a definite decision. If any of you made your decision and are happy with the tankless, please give me some knowledge. I know the first advantage on tankless is saving space. On saving energy, most people talked about saving gas, what about electric bill and convenience/maintenance? To those who passed on the tankless, can you tell me the reason?

Also, I have confusion between tankless electric and tankless gas. Most people just said tankless, I assume it's electric, but when I went to homedepot website, I see there is also tankless gas. What is the advantages and disadvantges?

If I gettankless, elecrtic or gas, is it just simply swap it in place of the old water gas tank, soldering the input and output copper pipes? I am asking this question because I see many thread people are talking about the cost of repiping, scaling, filtering, regulating, etc ... Also, I've seen some pictures of it after installed. Why $2k installation (someone told me)?

Your experience is with 110v or 240v unit?

If it matters, the existing gas burn tank I have now is A.O.Smith 74 gallons. I see wet water underneath it. Distant between the tank to bathrooms are between 30' to 40'. We currently have no problem waiting for hot water and no problem running out of it, even though my kids love to dance in the shower.
Thanks.