Tankless water heater maintaince - Page 2

oil pan 4 · 11-10-16, 06:54 PM

I finely got it going and I like it.
The only thing don't like is it not kicking on at real low flow.
I may consider putting a tiny electric tank water heater under the sink or a small tankless that handles low flow really well.

pinballlooking · 11-10-16, 07:11 PM

Mine has an Activation Flow Rate: 0.40 GPM. When I was searching for a unit I looked for a low Activation Flow Rate.

You can make your sinks flow a higher rate.

stevehull · 11-10-16, 07:44 PM

Pinball,

Remind us of the specific tankless water heater you have. Really 0.04 GPM? That is a trickle!

Steve

pinballlooking · 11-10-16, 07:56 PM

Steve that was a typo it is about 1/2 gallon that is about as low as I was looking for. .40 GPM
(sorry that would be crazy low.)

T-H3-DV-N - 199,000 BTU Natural Gas Indoor Condensing Ultra-Low NOx

Spec sheets.
http://www.takagi.com/media/19483/24...TRGSS01512.pdf

ULTRA-LOW NOX 0.95 ENERGY FACTOR
Power Direct Vent Design
• Exhaust, 3” PVC Venting up to 70 feet or
4” PVC Venting up to 100 feet

I have been very happy with it. The intelligent circulating pump really helps. In my bathroom by the time you use the water warm to hot water is there.

oil pan 4 · 11-11-16, 12:13 AM

The kitchen and bathroom sinks kick it on no problem. I think kitchen sinks flow like 1.5gpm and a bathroom sink does around 1gpm.

Mini · 11-26-17, 11:43 AM

I looking for info about how to flush my tankless water heater and I came across this site. I know the opinion that еoo much of calcium and mineral deposits can reduce the life of the tankless water heater. Regular flushing is quite beneficial for its longevity and improve its efficiency. How do you flush your water heater? What can you recommend?

oil pan 4 · 11-26-17, 03:15 PM

I added additional valves when I installed it for this reason.
I have a few pumps I could use to circulate water with.
For the chemical I figured I would get some nitric and phosphoric acid mixture from work.

Daox · 11-27-17, 01:24 PM

I installed the valves on my hot water heater as well when I installed it. I've honestly never used them. We have decently hard water that is softened.

pinballlooking · 11-27-17, 01:30 PM

I installed them as well and have never used them.
I do plan on it I bought the vinegar a year ago.

But the hoses I had for the job I used for another project.

11-10-16, 07:11 PM	#12
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	Mine has an Activation Flow Rate: 0.40 GPM. When I was searching for a unit I looked for a low Activation Flow Rate. You can make your sinks flow a higher rate. __________________ Current project Aquaponics system , Passive Solar Greenhouse build To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Solar Install 12.5 Kwh- To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mini Split installs - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. EV Chevy Volt - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Last edited by pinballlooking; 11-10-16 at 08:00 PM..

11-10-16, 07:44 PM	#13
stevehull Steve Hull Join Date: Dec 2012 Location: hilly, tree covered Arcadia, OK USA Posts: 826 Thanks: 241 Thanked 165 Times in 123 Posts	Pinball, Remind us of the specific tankless water heater you have. Really 0.04 GPM? That is a trickle! Steve __________________ consulting on geothermal heating/cooling & rational energy use since 1990

11-10-16, 07:56 PM	#14
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	Steve that was a typo it is about 1/2 gallon that is about as low as I was looking for. .40 GPM (sorry that would be crazy low.) T-H3-DV-N - 199,000 BTU Natural Gas Indoor Condensing Ultra-Low NOx Spec sheets. http://www.takagi.com/media/19483/24...TRGSS01512.pdf ULTRA-LOW NOX 0.95 ENERGY FACTOR Power Direct Vent Design • Exhaust, 3” PVC Venting up to 70 feet or 4” PVC Venting up to 100 feet I have been very happy with it. The intelligent circulating pump really helps. In my bathroom by the time you use the water warm to hot water is there. __________________ Current project Aquaponics system , Passive Solar Greenhouse build To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Solar Install 12.5 Kwh- To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mini Split installs - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. EV Chevy Volt - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

11-27-17, 01:24 PM	#18
Daox Administrator Join Date: Aug 2008 Location: Germantown, WI Posts: 5,525 Thanks: 1,162 Thanked 374 Times in 305 Posts	I installed the valves on my hot water heater as well when I installed it. I've honestly never used them. We have decently hard water that is softened. __________________ Current project - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. & To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

11-27-17, 01:30 PM	#19
pinballlooking Super Moderator Join Date: Jun 2013 Location: SC Posts: 2,923 Thanks: 172 Thanked 564 Times in 463 Posts	I installed them as well and have never used them. I do plan on it I bought the vinegar a year ago. But the hoses I had for the job I used for another project. __________________ Current project Aquaponics system , Passive Solar Greenhouse build To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Solar Install 12.5 Kwh- To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. Mini Split installs - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts. EV Chevy Volt - To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.

11-10-16, 06:54 PM	#11
oil pan 4 Land owner Join Date: Nov 2012 Location: NM Posts: 1,026 Thanks: 12 Thanked 127 Times in 107 Posts	I finely got it going and I like it. The only thing don't like is it not kicking on at real low flow. I may consider putting a tiny electric tank water heater under the sink or a small tankless that handles low flow really well.

11-11-16, 12:13 AM	#15
oil pan 4 Land owner Join Date: Nov 2012 Location: NM Posts: 1,026 Thanks: 12 Thanked 127 Times in 107 Posts	The kitchen and bathroom sinks kick it on no problem. I think kitchen sinks flow like 1.5gpm and a bathroom sink does around 1gpm.

11-26-17, 11:43 AM	#16
Mini Lurking Renovator Join Date: Nov 2017 Location: USA Posts: 6 Thanks: 1 Thanked 0 Times in 0 Posts	I looking for info about how to flush my tankless water heater and I came across this site. I know the opinion that еoo much of calcium and mineral deposits can reduce the life of the tankless water heater. Regular flushing is quite beneficial for its longevity and improve its efficiency. How do you flush your water heater? What can you recommend?

11-26-17, 03:15 PM	#17
oil pan 4 Land owner Join Date: Nov 2012 Location: NM Posts: 1,026 Thanks: 12 Thanked 127 Times in 107 Posts	I added additional valves when I installed it for this reason. I have a few pumps I could use to circulate water with. For the chemical I figured I would get some nitric and phosphoric acid mixture from work.