Tankless Water Heaters

[Switch]

Looking for feed back on tankless water heaters, my existing tank is close to needing replacement. Are they economical and to they produce enough water when the crowd is over. An feed back would be appreciated.

 

[sumx54]

I've heard they're the chit as long as you're using treated water through them. Not good for untreated water. Best on town water. Yes they will keep up... "On demand"

 

[femme.fatale.]

We have a Rennai and have had for almost 10 years. I really love it. I've never had an issue where I ran out of hot water or that it wasn't hot enough. I cloth diapered 2 babies and do a LOT of laundry (still ) - I can run the washing machine on hot and the dishwasher at the same time with no problems with hot water.

Changing the temperature is as simple as up and down buttons on a digital display (we turned down when kids were babies and recently turned up). I would think if you are demanding a lot of hot water, simply turning up the heat would work as you'd need less hot water - in theory. I wouldn't know, I hate company haha! (kidding, sort of. It's always been fine when we have a houseful at Christmas/Easter/Thanksgiving etc)

Water is HOT. Like, be careful if you have it really hot, I've burned myself.

Cost savings wise, I don't actually know, because I don't have history with a hot water tank to base my judgment on.

 

[femme.fatale.]

I've heard they're the chit as long as you're using treated water through them. Not good for untreated water. Best on town water. Yes they will keep up... "On demand"

We live in the country with terribly rusty water - Ours held up to that ****e water for 8 or so years until last year when we put in a rather nice new softener/iron remover filtration system. Never a hiccup here!!

 

[Pinner]

How much water is wasted waiting for hot when it hasn't been used in awhile?

 

[femme.fatale.]

One of the guys at work has a circulating pump in his system and his is instant heat. Mine is a minute, maybe.

ETA: Can't see it being longer than with a tank system

 

[sc800]

How much water is wasted waiting for hot when it hasn't been used in awhile?

They are instant hot, no different in time waiting for hot water tank to get water to your facets.

 

[Joholio]

Anyone have electric tankless? Thinking of one for our cabin(no NG) as our tank unit is aging. Good thread

 

[Pinner]

Anyone have electric tankless? Thinking of one for our cabin(no NG) as our tank unit is aging. Good thread

Propane ? For a cabin tankless would be perfect.

 

[sledhead_2002]

We have a gas tankless, works awesome BUT it is located about 30ft away from where the hot water tank was located and it does take longer to get hot water due to the extra distance water needs run to get to faucet. Never an issue with running out of hot water. ever. The do come and clean the system once year as part of our purchase agreement

 

[Joholio]

Home Depot Canada - Mobile i dont have propane

 

[Pinner]

I was thinking propane

 

[iceman5689]

I have a Navien heater for the past 4 years, not an issue with it so far as long as you clean the fliters monthly and keep any obstruction from the exhaust outlets (ie snow). Best part, never run out of hot water, and takes up no floor space.

 

[nast70]

We got one installed a couple years ago. Our ensuite has a large 2 person jacuzzi that the old tank couldn't fill.
Havent had an issue with not enough water, but more than 3 faucets (2 showers and maybe the dishwasher) on at once and it has trouble keeping up. Having as long a shower as you want is pretty awsome though

 

[getzcold]

They work great if all you want out of them is unlimited hot water. As far as efficacy goes it sucks compared to a high efficient tank. Also there's way more things to go wrong in these units. I put one in my house and I would not do it again.


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[250mark1]

Unless you need a high volume of hot water all the time they would never pay for themselves
2-3k to have installed for a good unit (rinnia is the best) they should flushed and cleaned yearly also
my conventional 40 gal water heater uses less than 7 bucks a month in natural gas ( actual gas costs not including the delivery charges etc)

 

[camoJoe]

Hot water on demand is nothing new, .... Grew up in Europe, (Dutchman) Every house in the country had Hot water on demand,.... simply a heat exchanger fired by natural gas, and that was 60 years ago,.... here they just charge you an arm and a leg for it.!! .... and everything else...

 

[Keith Brown]

There are some awesome posts to help with your decision already but here are a couple more points that may our may not be relevant. 1 A tankless needs new venting usually thru a wall so if your mechanical room is located in such a manner that you need to demo existing improvments it may be very impractical, 2 Tankless has a considerably smaller foot print then a conventional tank and could improve the use of existing space. 3 Tankless do perform very well in high demand applications but they also really shine in very low use situations for instance during holidays or other periods of none use a conventional 40 gallon tank keeps the entire load of water heated for the whole time, where as the tankless uses no energy. 4 When it is all said and done natural gas is very inexpensive particular here in Alberta and the pay out is iffy but if you are passionate about cutting green house emissions and you need more water then you have then it is definitely a good option. 5 One last tip if you do decide to install a tankless the gas line feeding the unit needs to be upsized to accommodate the high BTU requirement of the tankless, this is often over looked during installation and will lead to chronic problems.

 

[woody_tobius_jr]

We have a Rennai and have had for almost 10 years. I really love it. I've never had an issue where I ran out of hot water or that it wasn't hot enough. I cloth diapered 2 babies and do a LOT of laundry (still ) - I can run the washing machine on hot and the dishwasher at the same time with no problems with hot water.

Changing the temperature is as simple as up and down buttons on a digital display (we turned down when kids were babies and recently turned up). I would think if you are demanding a lot of hot water, simply turning up the heat would work as you'd need less hot water - in theory. I wouldn't know, I hate company haha! (kidding, sort of. It's always been fine when we have a houseful at Christmas/Easter/Thanksgiving etc)

Water is HOT. Like, be careful if you have it really hot, I've burned myself.

Cost savings wise, I don't actually know, because I don't have history with a hot water tank to base my judgment on.

We have a Rennai as well, I had it freeze off twice and split on me. I was ready to throw the POS out the window, but then I put a recirc pump on it, and it hasn't skipped a beat in over 8 years now. So that would be my suggestion, plumb in a recirc pump right off the giddy up and it will give you peace of mind. I just run mine during the winter and shut it off in the spring. Depending on where you run your circuit ( I would suggest the kitchen tap) the hot water will be there when you turn your tap on.


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