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kidw4legs's blog


electric tankless water heaters

Published Nov. 5, 2009
Views: 240

 Do any of you happen to have this type water heater, or know someone who does or have service experience on them? I'd appreciate hearing your reviews, horror stories, recommendations, etc.

 

Thanks!

Filed under: Business & Technology




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I put in a gas tankless (Rinnai) a couple years ago and love it. The electric ones are not as efficient. It takes alot of electricity to heat the water up quick enough for it to be useful. FWIW, tankless and on demand are not the same when it comes to water heaters so don't let that confuse you while you are researching. Good luck.

One issue to consider, as I myself have, is the cost savings benefit vs. reliability. The on-demand tankless units are significantly more complicated system than the reliable eater heater tank.

If a component of one of these units should fail, you may wait significantly longer for replacement parts, and most likely, will pay considerable more for them.

With the efficiencies of new water heater tanks, I myself am siding on the side of reliability over that of energy savings.

Kid4, I talked with Cary Plumbing about an electric one. They don't recommend it. Best bet is to get one that uses natural gas or propane. The gas ones pay for themselves in just a few years. The electric ones take forever to pay for themselves, they said. I'll defer to the pros on that one.

While I was building houses, we used Rinnai brand tankless heaters with mixed results. One key factor is climate and placement.

If the plumbing/electrical crew do not place it properly supply line freezing can be a problem during the winter months.

All in all a good idea, point of contact and all, just be careful with the brand and the installation.

Hey T,

I've got one at the beach just put it in this summer to replace a standard tank ( Bosch 115). It took a lot of fiddling to get right and I wouldn't say it's as near as good as my Gas one here at home. If everyone is down there (two BR's, 800sq footish) and the washer is running forget about a shower. They have larger capacity units (I think the next larger was a 125, etc.) but it's a good unit for a vacation home. I don't think I'd use it daily as I sometimes get frustrated or end up taking a lukewarm shower if other stuff is going).

My boss has one and LOVES it. Saves money and the hot water is HOT!

Don't know about the electric, but I know some folks that have installed the gas on demand water heaters and they love them. Kinda expensive, over a grand for the gas version.

At one location where I work we have tankless water heaters. Wow talk about hot water and it's there very quick. My sister also has it in her house and it works as well and has lowered her electric bill. I will be changing over to one when my current water heater dies.

Yes, I did have one. Due to us being on a well and we had problems with the pump it got clogged with some dirt and finally stopped working. We could not get it to lower the temp on the water coming out so we disconnected it and went back to a normal hot water tank.

We would replace it if we could find a unit at a good price. We have even looked at the gas models. If trees were not such a problem for us we would have solar panels. Our old house had them and we loved them.

Hope this helps

from what I heard they are a energy eater, keep in mind the water is heated at time of use instead of in a tank already at a set 120 degrees or higher, this creates a immediate energy surge to heat the water, it is compact so that is an advantage. they make several different types so cost varies.

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