I was planing on adding a new entry door and also a new on-demand hot water heater to my home... Obama's bill introduces a 30% tax break for the next two years on insulation,doors,A/C units, Windows, roofs,hot water heaters Even if you dislike Obama or Democratic government, this is a very good way to help the economy as I will be hiring Electricians,Plumbers, and a carpenter this summer.

We have always had a storage water heater but it needs to be replaced and we have heard more about a tankless water heater? Does anyone have one and can comment or know the benefits of tankless vs storage?

The house is 6 bedroom and 5 bath two story house that was built a year ago. There is not enough hot water when all four of us want to take showers after the beach. The hot water takes a while to get to the kitchen and master bathroom, which is on the opposite side of the house from the 71 gallon water heater. How do I easily fix this problem? New tankless? Bigger water heater? Second water heater? Instant hot in the kitchen and master bath? Please help!!!

I am referring to gas hot water heaters with tanks and not the tankless models.

are there any drawbacks?

we have a 50 gal lp water heater which will probably have to be replaced in near future. There are 3 adults & 1 youngster in the house. Which will be the most "green" as well as saving $$ over a period of time & yet provide sufficient hot water as needed?

I’m looking at several gas tankless water heaters and many of the manufactures are telling me that I should check if the fittings will first fit the new unit. Makes sense but I’m not sure how to check.

If I’m placing the tankless unit relatively near the same place where the storage tank tank is now, am I just looking at the current gas input pipe?

If I wanted to completely change where the unit is installed, does that mean that the pipes will have to be extended?

I fully intend to hire a pro to install the unit (if I decide to get one) but I don’t want to hire a pro just to help me pick out one. I hope this makes sense.

Thanks in advance…

Building a new house in a year or so. I would like to make it as green as possible, but it has to look like a conventional house (no massive solar panels or windmills) and I won't spend a fortune on fringe technology that has no real-world returns. What's the best bang for the buck? Geo thermal HVAC? On demand hot water heaters? LED lighting? Any other ideas that are reasonably priced, and produce a real energy savings? (pay for themselves in five years or so...)

it is leaking at the top, not a relief valve problem. We were told we have to contact Rheem and we are in Mexico. What can we do?

I hear these new tankless water heaters are much more efficient and affordable. But is there one large enough to supply hot water to 10 apartments? Which one?

I have 300 Lit electric water heater with 1" input cold water & 1" output hot water, i need for my villa 11/2", how i can make the connection without pressure drops?

I Live in Maine, am a new home owner, and need some tips. We have propane as our main source of heat/hot water. We have an on demand hot water heater. What can I do to prevent my pipes from freezing etc in the middle of winter if I lose power for a few days or longer?

We are trying to pick a water heater to replace our old one. Our hot water currently smells/tastes metallic, the heater we have is 12 yrs old, & the problem has been going on for almost a yr, so I'm thinking the prob. is more than just the anode rod at this point. Any thoughts on the contrary?

Our cold water also sometimes smells metallic. Most of the time it's just when the hot water's "warming up" & coming out cold at 1st, but I'm worried there may be rust or metal buildup in our pipes now. What to do? How to tell? We tested our h2o, it came back ok - maybe test was bad?

If we do need to replace it, got any input on tankless vs. regular electric? We have no access to gas. Have heard tankless can get buildup faster. I know w/tankless, w/out electricity we'd have no hot water, but that is ok. We like the space & electric conservation. I've been researching & think we could afford one, prices have dropped.

What brands - tankless or regular - would you recommend?

Thanks!
We'd also be taking out the old one and installing the new one ourselves, so any advice on that would also be appreciated!
We do have enough amps, that I do know. I think it's 200, but whatever the case it is something my husband checked before we started shopping for one, in case we needed to rule the tankless out.
Luc, thank you so much, that is very sweet, and I may be emailing u!
As far as how it tastes ... I should clarify - we aren't drinking the hot water from the tap, but you can sort of 'taste' it in the steam from the shower, and, our dishes out of the dishwasher have a metallic taste to them, because of the residue or something I'm guessing. Also, our cold water also has a weird flavor. Like I said, we tested it, but got normal results. So that's even more confusing.

I am planing on building a small wood burning stove-water heater unit for instant hot water. To fill a bath and heat the bathroom.
Any idea how much copper pipe I need to heat up to get a steady flow of very hot water.