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1
Posted on 1/7/14 at 10:21 am to shaqtaw
I'm about to build a house and I'm interested in tankless. If we're starting from scratch is there a big price difference when compared to a tank?
There will only be 2 of us in the house with roughly 2000 square feet. Running out of water has never really been a problem before unless we filled the tub.
There will only be 2 of us in the house with roughly 2000 square feet. Running out of water has never really been a problem before unless we filled the tub.
Posted on 1/7/14 at 10:25 am to tigerwag69
quote:
One correction. The plumber doesn't have to install an orifice at the meter. He needs to make sure the pipe running to the heater is large enough to handle the volume of gas needed for it to operate properly. That may be the problem in your house. Your pipes aren't large enough for you to run your heating system, water heater, and any other appliances you have at the same time. That would be why you don't notice it during the summer.
Who ever does the orifice install...I wasnt sure. But its not what is inside my house I dont believe. It only happened once a couple years ago and the last 2 mornings when it was real cold. Nothing else in the house running...no heater...no appliances...just one hot water location and nothing. Error code 11 which points to not enough pressure. It only happens from like 6-730 the last 2 mornings. Thats when a lot of people are up taking showers and warming there house so the gas pressure on that grid drops. Thats what I was told last time when I called the manufacture to come out and check. They did some testing and that is what they found. They replaced the orifice (or whoever did) and it was ok but there are more houses now so it may have dropped again.
Posted on 1/7/14 at 10:30 am to Dave Worth
my dad put in two for their house. 4 bdrm/4 baths. The reason they put them in is for times like Christmas when we are all in to visit and there are four showers going at one time. Having enough hot water was never a problem
Posted on 1/7/14 at 10:41 am to supatigah
So nobody can come up with an installed cost for a conversion?
Posted on 1/7/14 at 10:43 am to supatigah
New house installations present optimum conditions and the perfect time for tankless installs. You won't have to pay extra for install since the piping time is roughly the same.
Posted on 1/7/14 at 10:48 am to DeepSouthSportsman
quote:
orifice
You said orifice...
This post was edited on 1/7/14 at 10:49 am
Posted on 1/7/14 at 10:49 am to Hammertime
quote:
I've been thinking hard about getting one. I have an 80gal hot water tank, but my shower head flows close to 10gpm, so I don't have much time to screw around in the shower. Not willing to give up the shower head either. Back-to-back showers don't happen here.
What labor is involved, and what was the final cost? Is it something that I could install since the labor is so expensive?
You need an on site estimate.
10 gallons a minute is a huge amount of water volume, but keep in mind it's a 10 gallon per minute max for temp treated water so it won't be a 10 gallon hot demand.
It may require 2 tankless seeing as how water volume will be the biggest obstacles to overcome.
Posted on 1/7/14 at 11:26 am to Sl4m
We have one, forget the brand though. We have 5 in our household and have not once ever not had hot water. Many times in the morning there will be two showers happening at the same time and have never got the cold water "shock" that I got in previous houses with tanks.
Posted on 1/7/14 at 6:35 pm to Sl4m
Actually the size of the pipe is determined by the distance from the meter to the water heater. The longer the distance, the larger size pipe should be.
Posted on 1/7/14 at 6:49 pm to Kajungee
quote:It WILL save you money though- compared to an electric one.
If you want hot water for days yes. If you are looking to save money on your gas bill. No
Wish I had one.
Posted on 1/7/14 at 6:58 pm to tigerwag69
I believe you have your water and gas properties mixed up.
Water and gas do not share the same distance/volume properties.
Water and gas do not share the same distance/volume properties.
Posted on 1/7/14 at 7:22 pm to Sl4m
But the heater is fueled by natural gas and you need a certain # of btus for it to operate properly. A specific sized pipe can only carry so many cubic feet of gas a certin distance. Therefore the gas pipe has to be sized properly for the water heater to work correctly. It has nothing to do with the distance/volume properties of water.
Posted on 1/7/14 at 8:07 pm to shaqtaw
We just finished building a house. We opted to go with a Rinnai 9.4 propane outdoor water heater.I have no complaints so far.I went with the exterior model because we have a metal roof and didnt want any holes in it.Southern Pipe and Supply had the best price that we found.
Posted on 1/7/14 at 8:43 pm to CroakaBait
quote:what size is it ....I had a friend call me over to look at an electric one that he had ...
FWIW, I would've gone with the gas tankless if I had natural gas service out here in the sticks, electric tankless was just easier in my case than rigging up a LP tankless.
it turns out that this thing had three elements that needed a 220 40 amp crt for each element...
he had someone hook it up and they only had enough power to run two of the elements ...
with only two of the elements working the water just wasn't hot enough imo... and to hook up the third element he needed his electrical service increased....
turns out he had gas at his house and changed everything out to gas...
Posted on 1/8/14 at 7:34 am to tigerwag69
The OP stated that he had 2 gas tanks which would indicate Liquid Propane.The heater would likely be fueled by LP.Doesnt it burn with quite a bit more BTU's than natural gas?
Posted on 1/8/14 at 8:12 am to pdubya76
I was responding to another poster. Actually, the btus would be the same, but propane utilizes a slightly higher pressure.
Posted on 1/8/14 at 8:41 am to drexyl
quote:
At my house it can take a while for the water to heat up; with a tank it's there immediately. Sometimes i have to let the shower run for 5 - 7 minutes before it gets hot.
This has to do with the distance your hot water heater is from the faucet and not whether or not it's tank or tankless. At my house I can count to 10 and have 120 degree water. For the people asking for brands, I have had a Noritz for 6 years and it has been great.
Be sure you don't sell yourself short on how big of a unit to get though. Always remember things like washing machines and dishwashers when sizing the heater.
Posted on 1/8/14 at 9:13 am to Jimbeaux28
quote:
I second the negative reviews on Rheem. Switchboard went out and had to be replaced. Go with another brand.
This is what happened to mine. Flashed code 76, which is switch board related issues. It was still under warranty, so it only cost me for plumber install. 2 weeks after the plumber left, my other one goes out. I was pissed. Don't buy the Rheem.
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