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Tankless Water Heater Recs
Posted on 9/2/20 at 8:36 am
Posted on 9/2/20 at 8:36 am
Having tank issues and might have to make the switch. Would be moving to gas tank-less so looking for recs.
I know there have been a few threads on this but most look to be over a year old.
I know there have been a few threads on this but most look to be over a year old.
This post was edited on 9/2/20 at 8:36 am
3
Posted on 9/2/20 at 8:54 am to greenwave
Rinnai
Posted on 9/2/20 at 8:54 am to greenwave
We switched from two tank electric heaters to one tankless gas Rinnai and the savings on electricity was fairly substantial.
PROS:
Endless hot water
Easier maintenance
Saves money over electric tanked
CONS:
Takes some time to heat up, not instant
Needs to be de-scaled every year
If I had a gas tanked heater, dont know if I would make the switch unless I needed the endless hot water.
PROS:
Endless hot water
Easier maintenance
Saves money over electric tanked
CONS:
Takes some time to heat up, not instant
Needs to be de-scaled every year
If I had a gas tanked heater, dont know if I would make the switch unless I needed the endless hot water.
Posted on 9/2/20 at 9:04 am to UltimaParadox
quote:
switched from two tank electric heaters to one tankless gas
How much does this switch run? Our tanked electric is pushing 30 years old and i'd like to switch it to gas tankless.
Posted on 9/2/20 at 10:00 am to nerd guy
Cost depends on how far they have to run gas and/or other lines. The gas tankless requires a larger than standard gas line (3/4" I believe), so they'll have to run as far as they need to get a 3/4 inch source. I replaced a gas water heater with gas tankless for about $2000 for 7 or 8 gpm. That price was for unit + install, which took all day due to running gas line and power (needs electricity for the computer system on the tankless - it won't run without power).
I will say the tankless is definitely worth it. Tanks cost more now with the added efficiency, so the price difference is not as great. They are a bit slow to get hot water to you, but some of them have built in recirculation so it is instant (I think this is more common on the bigger 9gp_+ sizes). If you are going from 2 tanks to 1 tankless, definitely spring the extra couple hundred bucks for one that recirculates.
I will say the tankless is definitely worth it. Tanks cost more now with the added efficiency, so the price difference is not as great. They are a bit slow to get hot water to you, but some of them have built in recirculation so it is instant (I think this is more common on the bigger 9gp_+ sizes). If you are going from 2 tanks to 1 tankless, definitely spring the extra couple hundred bucks for one that recirculates.
Posted on 9/2/20 at 10:57 am to Ziggy
quote:
Rinnai
I have 2 of these and love them! Better than the Rheems I had at my old house.
Units are more expensive but don't require stainless steel vents that others require.
Total cost is about the same as the Rheem and a far superior product.
Posted on 9/2/20 at 11:29 am to lsujro
quote:
. If you are going from 2 tanks to 1 tankless, definitely spring the extra couple hundred bucks for one that recirculates.
Our unit supports the recirculate option, but wondering if that kills all the efficiency. Or do you have the type that only recircs at certain times of the day
Posted on 9/2/20 at 11:30 am to nerd guy
quote:
How much does this switch run? Our tanked electric is pushing 30 years old and i'd like to switch it to gas tankless
Cost us a little over 3K for removal of both old tanks, plumbing for gas and connecting the two "hot water" areas together.
We have very cheap electricity here due to TVA, but i am still saving on average 40/month. Even with the increased gas usage.
This post was edited on 9/2/20 at 11:31 am
Posted on 9/2/20 at 11:42 am to greenwave
Get one of the Rinnai condensing units.
Posted on 9/2/20 at 12:01 pm to UltimaParadox
quote:
CONS:
Takes some time to heat up, not instant
Needs to be de-scaled every year
Have one of my tankless out right now. $2200 to replace it.
The De-scaling annually (or even every few years) is a cost that offsets any energy savings. I was quoted around $500 per unit for annual cleaning and de-scaling.
I’m not convinced they are worth it.
This post was edited on 9/2/20 at 12:05 pm
Posted on 9/2/20 at 1:12 pm to tigers win2
quote:
I was quoted around $500 per unit for annual cleaning and de-scaling.
Assuming your tankless was installed with the proper valves and connections. This is really really easy.
Just need a small sump pump
4 gallons of vinegar
2 washing machine hoses
Takes about 45 minutes total once a year. Maybe out a hundred bucks for the initial purchase then just the cost of vinegar after that.
Quick Youtube video on descaling yourself
I know the video says to use that aftermarket solution stuff. But Rinnai manual says just use straight vinegar once a year.
Posted on 9/2/20 at 2:26 pm to UltimaParadox
quote:
ur unit supports the recirculate option, but wondering if that kills all the efficiency.
I don't know the answer to this, but I don't think there would be a significant difference. I didn't go tankless for efficiency, I wanted endless hot water
Posted on 9/2/20 at 8:00 pm to UltimaParadox
Thanks everyone. Plumber just left. Tank gotta be replaced, Tankless would be 3000 vs 1500 for new tank and install. Sounds like tankless it is. We are on TVA too so that’s nice to hear about the energy savings.
He also saw mold under the house so on to the next house issue..
He also saw mold under the house so on to the next house issue..
Posted on 9/3/20 at 9:34 am to UltimaParadox
quote:I am going to pretend I did not read this.
Needs to be de-scaled every year
Posted on 9/3/20 at 10:15 am to AlxTgr
quote:
I am going to pretend I did not read this.
Lol how long ago was it installed? If you have water filtration you might be fine.
Posted on 9/3/20 at 10:24 am to UltimaParadox
quote:No idea. I bought the house in May 2019 from a widow who knew nothing about it. This is my first rodeo with a tankless.
Lol how long ago was it installed? If you have water filtration you might be fine.
It's in the attic, so I ain't doing shite until the temps get lower. That video didn't look terrible, so I may tackle it in December.
Posted on 9/5/20 at 9:58 am to Jimbeaux28
Interesting.
Initially had Rinnia and they were junk. Had to constantly replace fuses and crap on the “motherboard” etc.
I now have two Rheem tankless that run together, indoor units that vent with PVC not stainless. Have had them for 10 years and have never de-scaled or had any issues. Only thing I will buy from now on.
Initially had Rinnia and they were junk. Had to constantly replace fuses and crap on the “motherboard” etc.
I now have two Rheem tankless that run together, indoor units that vent with PVC not stainless. Have had them for 10 years and have never de-scaled or had any issues. Only thing I will buy from now on.
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