What gas regulator to use for a Rinnai tankless heater
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- Опубликовано: 23 апр 2021
- This has been one of my biggest questions I have received from plumbers and gas service people.
There are many different company's making regulators and for the most part there all good. I found these two company's to be one of the best I have used for natural and propane gas.
Pietro Fiorentini 3/4" black spring 2 pounds in 8 to 14" out F31052-2BP
Mec 10 pounds in 2 pounds out #MEGR-1622E-DFF
Mec 10 pounds in 9" to 13" out #MEGR-1652-DFF
If you would like to ask a question or would like a Rinnai guy sticker please send your info to economyplmbg@aol.com
I hope you enjoy this video,
Mike
PLEASE USE A LICENSED PLUMBER TRAINED IN RINNAI LEVEL THREE TRAINING. FOLLOW ALL NATIONAL AND LOCAL GAS AND PLUMBING CODES AND TO FILE A PERMIT AND OBTAIN INSPECTIONS FROM YOUR LOCAL BUILDING DEPARTMENT. 
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Thank you so much for taking the time to make this video. We live in the country and have a private farm gas well and everything is pretty unregulated. Unfortunately, that also means it's hard to find good information and assistance. We recently put in 2 Takagi tankless water heaters, but found that we could only run 1 at a time with any reliability (kept complaining about air/fuel ratio). Even when we only had a single unit running it didn't seem to like the pressure fluctuations and would complain. We upgraded ourselves to 2 PSI gas and put in a dedicated Pietro Fiorentini regulator for each tankless unit. We probably could have just used a single PF regulator, but I was tired of fighting it and wanted a bulletproof solution. It works perfectly now, the pressure stays pegged at 8 in wc due to the balanced valve design of the PF regulator and I never would have gotten to this point without your help and this video. Keep up the good work!
Mike is THE MAN!!! I emailed him a question and he told me to call him, of which I did. Just got off the phone with him and he gave me a ton of information. Thanks Mike for your SELFLESS work!
thank you very much
I seen that he had his phone number on here,but now I can’t find it. Can you tell me how to get a hold of Mike?
Mike is great. Passionate, knowledgeable and willing to help anyone. These videos and his help are the reasons I am going with Rinnai.
Thanks, Mike. k
Mike advised me a third time over phone when I had a question regarding
gas pipe sizing for my Rinnai .. It was very detailed and informative.
Thanks Mike.. You are among the few popular youtubers who walk the talk
of helping out their subscribers.. Much appreciated !! :)
I'm here because I know absolutely nothing. I'm trying to connect a Rinnai v53dep tankless to a portable propane bottle for an offgrid application. If I understood it correctly, I need to install some pipe, the Megr-1652-dff regulator, a shut off, a minimum of 36" more pipe and ta da - done. I found it helpful.
Priceless!
Mike You're the Best!! How did you know Bob was my uncle?!?! 😉 But seriously, thanks for all the time and work you put into these videos. In about 3 months, I'll be installing a Rinnai RUR 199iN along with the rest of the water and gas plumbing in my new retirement home. Your information and attention to detail are an invaluable tool that will make this project easier and professional.
Ps - sent an email for a sticker, Thanks!
Mike- you've helped immensely with my installation of a new RE180iN heater. I'm replacing an old Aquastar that was fed by a 1/2" line. It is very close to the incoming supply line to my shop and I believe the 1/2" line will feed it adequately. The gas co. unit is labeled 25 psi. The line to the shop feeds a 2" gas line to fire a forge, kiln etc. The concentric venting for this water heater was a surprise to me. I'm waiting for new venting to come next day UPS to try and get this running before Christmas. I've run a lot of gas in the past to feed pottery kilns and am quite familiar with plumbing gas lines. I got a number 12 error and think the venting caused it. I'm concerned that I may get another 12 error after the vent installation if the regulator isn't outputting enough inches of pressure. The unit does light right now before throwing the 12 code. This leads me to think that the venting is the culprit. Also, the old line didn't have a sediment trap. I don't know if that was code when the old unit was installed 20 years ago here in Utah. I have a 42" flex line feeding it now so the regulator should be far enough away to function properly. I doubt that you will see this before I finish getting this installed, but welcome any advice, thoughts or concerns that you can give me. Your videos are some of the best I've found on any subject here on RUclips. Much thanks! Gordon
Mike you are such a great teacher !!!
Great detailed information about tankless heaters.
Glad it was helpful!
Good stuff Mike, great break down
Thanks for watching
Noice! Ty so much.
Thanks My house was built in 2001 I have gas logs heat and stove on low pressure I will be adding a second regulator 2lbs with a three quarter pietro florentini going to Rinnai 9.4 thanks
Hi Mike thanks for your great videos, this one is on Regulators can you explain why I need a regulator? Thanks, Jim
If you system is high pressure you need to reduce that down to inches. A Rinnai tankless works at an average of 5 to 13 inches of water column. Mike
Mike, is the use of the pressure regulator a must, or can you install without it. I’ve seen videos that they have not used the regulator.
If I add a Tankless Propane water heater to my home, do I need to have my gas company upgrade my High pressure regulator and then add regulators for my existing propane Heating and my propane range(oven & cooktop)?
Mike, Can the 10lb to inches or the 2lb to inches regulator be further then 3 ft. away from the Rinnai RSC 199I? The current line supplies a generator with a T in the line that we can tie into for the Tankless.
I’ve watched a few videos from others before finding your channel - no one else shows installation of the natural gas pressure control - I’m amazed there wouldn’t be one built into the unit if it’s that fussy? I’ve just ordered the RSC199in and am really concerned about a proper install.
I simply want to know which regulator to install for my propane, tankless water heater. I just use a 30# tank of propane which is 100-200 psi. The minimum WC is 9.8 and the maximum is 12.4”
Thank you
Hi Mike, I'm not a plumber, I'm a house flipper. But, we've run into a situation with a house that the gas pressure is too low to run our Rheem tankless water heater in the attic. Atmos has been difficult to work with but has agreed to increase our gas pressure to 2 lbs and I have to put regulators on all the appliances. If I understood your video, which was incredibly informative and honestly most went over my head, then the Pietro Florentine 1/2" F31051-1BP would be the regulator I need for the tankless. Do you have any advice on which one to install on the gas furnace? The gas range came with a regulator.
I have searched high and low for that Pietro regulator but the closest I can find is F31052-2BS. I have no idea what the S instead of P means at the end. Can you tell me if this one is OK?
I have a Rheem I'm about to install. It says 180,000btu's.. What type regulator do I need? I'm using 1/2" steel pipe for the line. Nothing else will be using the propane, just the hot water heater. Help please. Thank you.
Hey Mike. Just bout a Rinnai 199. I have a r232-bbf regulator on my tank, its output is a 1/2 inch npt. This is a integral regulator. My run for the pipe is 15 feet. Most charts say I need 3/4 inch tubing or pipe. My question is if I can adapt from the 1/2 npt to 3/4 line or has it already been too restricted from the regulator even though it's a 550btu regulator?
Hi mike thank for your videos, they are very helpful. Mike got a quick question, I'm installing an RU199IN, my gas line up to the wall is 3/4, right before the wall it goes down to 1/2", the heater will be around 3 ft from the gas outlet. is it better to use an adapter to bring it up to 3/4 again, or change out the T installed that changes it to 1/2, and install a new T that is 3/4 outright? Thanks.
Yes increase it to 3/4” it would be much better. Mike
If you put the regulator after that dirt leg, how is it 3 feet from the unit?
Hey Mike. Will a problem with the natural gas pressure cause the recirculator to shut off. I have had 2 plumbers look at my Rinnai and I am still having issues. The last plumber said that the reciculator was shut off. He reset it, but I am still having the problem where the water will hot for a minute or so and then go lukewarm. I have to jump start the unit by way of the dump valve to make it work. I am wondering about the gas pressure because I’ve notice that my gas fireplace has been randomly shutting off as well. Thank you!
What's the part number for the easy flex and full valve?
I have a V53DeP 5.3 and I want to hook it up to a 100 lb propane tank. Can I use a camper regulator at the tank and use a 2/pound in 8 to 14 out three foot from water heater?
Anyone know how I can email Mike? I can’t get Maxitrol to tell me what regulator is on my propane line for a TK-2 Takagi tankless, looks like 325-3 7-11 W.C 5 PSIG which is throwing me off, all I use propane for is the tankless.
mike, have a propane rur160.. it is going to be fed with 100lb above ground 23 gal flame king.. gas line is 3/4inch from tank and is run ug 30ft from tank to exterior wall of garage under concrete and up wall before concrete was poured..rinnai unit is inside garage and only about 3 ft distance from where gas line comes up outside .. how do i install a regulator 3 ft from unit if i only have 2.5 ft? from outside to inside where unit is located. should i run the exterior line a couple feet from unit outside and set regulator , and then go back and thru wall to get it the 3 ft minimum? thanks, and i am in lake placid florida
I have a Rinaii Cu199 and the gas company is getting ready to install natural gas to my house and is installing a larger 2lb meter. What size Regulator would I need for the Rinaii CU199? Thanks
Great video Mike! Just bought a house built in 1987 that uses propane gas. I'm preparing to install tankless, and noticed none of the appliances have inline regulators. The only regulator is right at the propane tank (it's a Rego PV2302 two stage). The line runs underground to the house. Does this mean I'll need the 10 lbs to inches regulator for my tankless (Rinnai V75ip)?
E mail me this info.
How far is the propane tank from the tankless
Is there an existing propane water heater
Mike
I have a Rinnai tankless for which I'd had a 100-gallon propane tank. This became costly filling that tank for water heating only. So, I pulled that big tank off and installed a 40-lb tank. Problem is that I think I'm using the wrong regulator, because my tankless isn't firing. And based on your instruction, it would appear as though the installer did not install the regulator under the tankless. None the less, how may I use a 40 lb tank that is about 12 feet from the tankless with buried line? Why isn't it not firing. What must I do differently?
Hey I have put in several tankless water heaters. However this is my first gas. I watched the video and must say it was very informative. I'm still a little confused on the size regulator I need for Rinnai 6.5 gpm natural gas. Can you please specify?
Chris - Did you ever find out an answer to your question above? I have the same question.
I have a question, I install a new propane tankless water heater is there anyway to turn it up so the water gets hotter,this model doesn't have the control on the outside
E mail me this info,
What’s the exact model number if it’s a V series or a RL series. If it an external model both should have came with a controller that needs to be installed inside. Let me know. Mike
Hey Mike If I have 12.2 inches of WC for natural gas coming in to my home and the most my tankless can handle is 10.5 inches WC what regulator would you recommend? I have a 3/4" natrual gas line. Thank you.
The regulator at the meter can be set lower by the gas utility company. there's no regulator that will drop down 2 inches.
What model Pietro reg. 160.000 ru
Dilshad