Tank Less Water Heaters
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Replies to This Discussion
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Permalink Reply by Penny on -
We have had a tankless water heater for years and actually had to have the first one replaced after it sprung a leak in a spot that cannot be fixed. Lasted around the same length of time a regular hot water heater would last.
The water is not hot instantly like an "on demand" system at the sink but you never run out of hot water as it only heats the water when asking for hot. Some brands are better than others and some do not come with a thermostat that can be turned down or up so be sure to get the kind you can adjust. They save money as you are not constantly heating water that is just sitting there waiting to be used. Also if it is installed on an outside wall and you have not already had a pop off pipe run to the outside I would have that done at the time it is installed. Just in case it pops you don't flood your garage. I had an issue years ago with a regular hot water heater and learned from that lesson.
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Permalink Reply by E Melvin on
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Thank you, both. It is something I am considering and this helped immensely
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Permalink Reply by Doug Carder on
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My understanding is that if there are 2 or 3 people in the house then they are fine, however a large family with on demand HWH it may cost more.
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Permalink Reply by Mike on
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Tankless is a great way to save bucks! You'll also get 30% of the purchase price back from the gov. It is true that the output varies per model and max btu input. Also be careful in sizing the unit because some brands do not accurately account for ground temperature when estimating the maximum output of hotwater. Go to the local Ferguson, those guys know a ton about hot water, that's where I got mine. They are also a great source for solar heaters, which I was considering. Btw, I love my tankless heater, not only did I add storage space in my house I have saved a ton!
Doug Carder said:My understanding is that if there are 2 or 3 people in the house then they are fine, however a large family with on demand HWH it may cost more.
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Permalink Reply by Kim Whitehil on
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I just had a tankless water heater installed about two months ago, and I have already seen a savings in my gas bill. I absolutely love it! Mine cost $2,250 installed. My old water heater had to be replaced. I have American Home Shield for my residence. I chose the cash out option because I wanted to upgrade instead of having American Home Shield replace my old one with a like water heater. I received approximately $560 from American Home Shield toward the tankless water heater. As the other poster stated, the water is not hot immediately, but it takes less than a minute for my hot water to reach the maximum temperature. The model I have has a digital display mounted on the wall that allows me to change the temperature whenever I need to. I had to have an electrician install an outlet in the closet where the tankles is located because there is some sort of fan that turns on when the heater is running (maybe to keep the components cool, I'm not really sure). Anyway, you should get one!
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Permalink Reply by peter sherman on -
we own a rinnai 75l. high end product. works exactly as you would hope with massive propane savings with a couple of concerns:
a). it uses a negligible amount of electricity to start the pilot when you request hot water. it uses this electrical pilot to heat the unit to keep it from freezing in the winter as appropriate. however, if the temps get very low AND your unit is in a poorly insulated external water closet AND you lose electricity all at once, your unit is vulnerable and such damage is not under warrantee.
b). if you are also concerned about saving water (as well as propane/gas/electric) you do have to run the water a bit longer (about 50% more water) before you get hot. this of course depends on distance from unit your faucet is and size of pipes and temp of pipes etc. but, 50% more water than our tank heater under same conditions.
c). if you use low-flow (super low flow) aerators on your sinks, sometimes yousimply don't draw enough volume to set off (turn on) the heater... this can lead to NO hot water until you run either another faucet or temporarily remove the low-flow adapter.
d). if you turn on/off/on/off your water while doing dishes to save water, this system does not work very well under those water saving conditions.
that said, the savings are quite noticable with the tankless... and the hot water can be created at the perfect temp (digially on ours) so that you only need turn on hot water for the shower (rather than having super hot water you then have to cool down with cold water (not very efficient)).
hope that helps. despite a - d, we own one and would buy another. about $1500 installed but these prices vary quite a bit.
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Permalink Reply by Kelley Ward on
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We love ours! With the rebate, it really wasn't much more expensive than a tank system. We did have ours installed closer to the master bedroom, which uses most of the hot water.
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Permalink Reply by Sandra Cuthbert Dominguez on -
No one should tell you that any one particular tankless water heater brand is the absolute best. Depending on the specific need and installation requirements/ restrictions of each installation site will lead to some products having slight advantages over others.
We prefer installing Navien heaters, but that’s because we are based in New England and we have things to worry about that installers in San Diego don’t worry about, and we had a lot of luck with them. We have also installed many Noritz, Rinnai, Rheem, and Takagi’s over the years for one reason or another. Prices can vary quite a bit from Brand to Brand.
Not all brands or products are the best for every home across America.
People in warm climates have different things to worry about that people in colder winter environments!
Generally speaking homes and businesses in warm climates don’t have to worry about water freezing during the winter so they can be installed directly on an outside wall. With the unit outside, you don’t have very little if any venting, or exhaust piping. It’s easier to install, and because the water isn’t much lower than 50 degrees in the winter months, you don’t need an extremely powerful unit unless you have large water heating demands. Homes with more than 3+ bathrooms.
For smaller homes in warm environments Any Brand tankless water heater installed correctly will work perfectly fine for many, many years.
For larger homes or small commercial businesses, take a look at Noritz.
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