Here's a link to an Amazon Flush Kit http://amzn.to/Y4ycbm or make your own. Tankless water heaters are great at saving energy. But, to maintain that energy ...
Sorry I missed your reply, and it's probably too late but In the lime belt water from the city can be upwards of 50gpg and I have even seen it higher. However the water in Indianapolis is 21gpg (grains per gallon) from the city.
I could not hear what the horse power is on your sump pump. I own a sump for pumping out my wet cellar. I am not sure how I would adapt that to this little tank. The intake on it is 1/2 inch. I own a little eco temp portable tankless hot water heater that operates only on water pressure and a gas grill 20 lb propane tank that I hang from my shower rod.
I'll typically flush the water heater and the pump with fresh water. I'm not so worried about leaving some vinegar in the water heater, it's quickly dissipated once the unit is fired up again. However, I've ruined a pump by not properly flushing the vinegar out. Best, Matt
Great Video. I am an avid DIYer and appreciate adding this to my skillset. I assume you ended the process with replacing the vinegar with water in the bucket and running it a little while to get rid of the vinegar, or does it just drain out passively when you disconnect the hoses?
Yes agreed. Cleaning & maintenance seem to not be a part of the discussion when people decide to go tankless. Let's all the word out that these units need serviced regularly. Best, Matt
Great video Matt. People need to know that keeping the exchanger clean of scale is of paramount importance. I install Navien Combi's and I stress the importance of yearly cleaning of them.
Before I retired I traveled all over half the U.S. working with commercial restaurant equipment including dishwashers and espresso and coffee, tea and hot chocolate machines. Keurig is very prone to breakdown due to Indiana water if a RO system isn't used. Indiana water is the worst in the world. You can go from sulpher, or iron, or calcium in incredible amounts. You should get the advice of a softener exoert that will analyze your water, you may need RO/Iron filters as well as a softener
Sounds like you did it all correctly. I'm not sure why the pressure dropped and the temp went up. Either way if you got 20 minutes of flushing you're probably 98% there. If your water is hard I'd suggest flushing annually if the water is soft then you're probably good for 18 mo to 2 years between flushing. Best, Matt
Thanks for your prompt response. Yes, I connected the discharge on the pump to the cold inlet side then the other hose to the hot outlet side and back into the bucket. I also cleaned the filter. Thanks, I hope this helps.
Great question. I have no experience with electric tankless heaters, but they should work and flush basically the same as a gas model. What I'm not sure about is wether they tend to scale as much as a gas model. I would expect a gas model to have a higher heat in the boiler so it might be more prone to scale than electric, but that's just a guess. Ok back to your question, did you connect the discharge on the pump to the cold inlet on the water heater? Did you clean the inlet filter? Matt
I have a Bosh electric tankless water heater model number RP27PT. I a 1/6 horsepower flotec submersible pump that I purchased at home depot. I followed every step on your video and after about 20 minutes the vinegar was getting hot and the pump was not discharging the same amount of water as it was in the begining... I made sure to turn off all the electric breakers that are connected to my tankless. Am I doing something wrong? Should I not flush an electric tankless? Please reply
Have you come across this everywhere in Indiana or mostly with homes that get their water from wells? We are definitely considering using tankless water heaters for new construction in Indiana and I don't want to invest in something that will easily get clogged and be a maintenance nightmare. Help please!
I don't have empirical evidence that they will last 20+ years in a coastal environment, but I can tell you that the units I've seen that are made in Japan are VERY well made. These are used extensively in Japan and they certainly have coastal environments to deal with. The oldest unit I've installed & serviced is 7 years old. Everytime I service that unit it looks brand new. I would not hesitate to install one in your environment. Stick with the well known brands. Rinnai, Noritz, Takagi.
We need to replace our ancient standard water heater. Our 137 year-old-home is in Galveston & space is a premium. It would be great if we could install an exterior water heater like the one you show here.
We're 4 blocks from the Gulf. What are your thoughts regarding exterior tankless in a coastal area like ours? Will it stand up to the sea-air we have (though, I don't think the air is as bad as people say it is)? My wife fears the nonempirical, anecdotal talk she hears about the issue.
white vinegar?!?..not in Indiana! 20 to 60gpg hardness...you will need either a watersoftener or reverse osmosis (large capacity) to use a tankless system like this one. Texas!....uhhuh
Generally it's a good thing if you're not seeing sediment come out. If you are seeing a lot or even some sediment then you need a regular annual flush. If you aren't seeing any sediment and you think your water is not very hard you might go 18 months to 2 years on the flush routine. Matt Risinger
It doesn't need to be very powerful, just enough to pump that 2 gallons through the system at a constant rate for 60 minutes. I would expect that a 1/8 HP would suffice. Matt
Oooh good question. I regularly build homes with two units and I'll flush both then toss the vinegar. The vinegar shouldn't lose it's potency after multiple flushes, but you'd want to ensure you're not pumping particles or debris into another machine. Seems like you could use that same 5 gallons multiple times in the same day, but I probably wouldn't save it for future use. Matt
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ReplyDeleteMatt check out my site wholesaletankless
ReplyDeleteSorry I missed your reply, and it's probably too late but In the lime belt water from the city can be upwards of 50gpg and I have even seen it higher. However the water in Indianapolis is 21gpg (grains per gallon) from the city.
ReplyDeleteI could not hear what the horse power is on your sump pump. I own a sump for pumping out my wet cellar. I am not sure how I would adapt that to this little tank. The intake on it is 1/2 inch.
ReplyDeleteI own a little eco temp portable tankless hot water heater that operates only on water pressure and a gas grill 20 lb propane tank that I hang from my shower rod.
I'll typically flush the water heater and the pump with fresh water. I'm not so worried about leaving some vinegar in the water heater, it's quickly dissipated once the unit is fired up again. However, I've ruined a pump by not properly flushing the vinegar out. Best, Matt
ReplyDeleteGreat Video. I am an avid DIYer and appreciate adding this to my skillset. I assume you ended the process with replacing the vinegar with water in the bucket and running it a little while to get rid of the vinegar, or does it just drain out passively when you disconnect the hoses?
ReplyDeleteI have a 3 parts series on tankless water heaters on my channel. google Tankless 101
ReplyDeleteYes agreed. Cleaning & maintenance seem to not be a part of the discussion when people decide to go tankless. Let's all the word out that these units need serviced regularly. Best, Matt
ReplyDeleteGreat video Matt. People need to know that keeping the exchanger clean of scale is of paramount importance. I install Navien Combi's and I stress the importance of yearly cleaning of them.
ReplyDeleteBefore I retired I traveled all over half the U.S. working with commercial restaurant equipment including dishwashers and espresso and coffee, tea and hot chocolate machines. Keurig is very prone to breakdown due to Indiana water if a RO system isn't used. Indiana water is the worst in the world. You can go from sulpher, or iron, or calcium in incredible amounts. You should get the advice of a softener exoert that will analyze your water, you may need RO/Iron filters as well as a softener
ReplyDeleteThanks for the help, I have a water softener so I'll probably flush it every 18 months
ReplyDeleteSounds like you did it all correctly. I'm not sure why the pressure dropped and the temp went up. Either way if you got 20 minutes of flushing you're probably 98% there. If your water is hard I'd suggest flushing annually if the water is soft then you're probably good for 18 mo to 2 years between flushing. Best, Matt
ReplyDeleteThanks for your prompt response. Yes, I connected the discharge on the pump to the cold inlet side then the other hose to the hot outlet side and back into the bucket. I also cleaned the filter. Thanks, I hope this helps.
ReplyDeleteGreat question. I have no experience with electric tankless heaters, but they should work and flush basically the same as a gas model. What I'm not sure about is wether they tend to scale as much as a gas model. I would expect a gas model to have a higher heat in the boiler so it might be more prone to scale than electric, but that's just a guess. Ok back to your question, did you connect the discharge on the pump to the cold inlet on the water heater? Did you clean the inlet filter? Matt
ReplyDeleteI have a Bosh electric tankless water heater model number RP27PT. I a 1/6 horsepower flotec submersible pump that I purchased at home depot. I followed every step on your video and after about 20 minutes the vinegar was getting hot and the pump was not discharging the same amount of water as it was in the begining... I made sure to turn off all the electric breakers that are connected to my tankless. Am I doing something wrong? Should I not flush an electric tankless? Please reply
ReplyDeleteHave you come across this everywhere in Indiana or mostly with homes that get their water from wells? We are definitely considering using tankless water heaters for new construction in Indiana and I don't want to invest in something that will easily get clogged and be a maintenance nightmare. Help please!
ReplyDeletethank you so much for the reply you are very helpful keep it up
ReplyDeleteI don't have empirical evidence that they will last 20+ years in a coastal environment, but I can tell you that the units I've seen that are made in Japan are VERY well made. These are used extensively in Japan and they certainly have coastal environments to deal with. The oldest unit I've installed & serviced is 7 years old. Everytime I service that unit it looks brand new. I would not hesitate to install one in your environment. Stick with the well known brands. Rinnai, Noritz, Takagi.
ReplyDeleteWe need to replace our ancient standard water heater. Our 137 year-old-home is in Galveston & space is a premium. It would be great if we could install an exterior water heater like the one you show here.
ReplyDeleteWe're 4 blocks from the Gulf. What are your thoughts regarding exterior tankless in a coastal area like ours? Will it stand up to the sea-air we have (though, I don't think the air is as bad as people say it is)? My wife fears the nonempirical, anecdotal talk she hears about the issue.
white vinegar?!?..not in Indiana! 20 to 60gpg hardness...you will need either a watersoftener or reverse osmosis (large capacity) to use a tankless system like this one. Texas!....uhhuh
ReplyDeleteGenerally it's a good thing if you're not seeing sediment come out. If you are seeing a lot or even some sediment then you need a regular annual flush. If you aren't seeing any sediment and you think your water is not very hard you might go 18 months to 2 years on the flush routine. Matt Risinger
ReplyDeleteIf I flush my tank and no sediment is coming out is this good or bad please reply
ReplyDeleteIt doesn't need to be very powerful, just enough to pump that 2 gallons through the system at a constant rate for 60 minutes. I would expect that a 1/8 HP would suffice. Matt
ReplyDeleteHow powerful should the pump be?
ReplyDeleteOooh good question. I regularly build homes with two units and I'll flush both then toss the vinegar. The vinegar shouldn't lose it's potency after multiple flushes, but you'd want to ensure you're not pumping particles or debris into another machine. Seems like you could use that same 5 gallons multiple times in the same day, but I probably wouldn't save it for future use. Matt
ReplyDelete