Question about Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm

1 Answer

Can i convert a Rheem ECO 180DVP (LP gas unit) to a natural gas unit ?

I've converted other LP gas appliances to nat. gas

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 5,128 Answers

Rheem water heaters should not be converted from propane to natural gas. The burners have been optimized for the rated gas and will not work as well after conversion. (Unlike ranges where the gas/air flow ratios can be adjusted when the burner orifices and regulator are swapped, the water heater doesn't have that option.)

I wish I had better news for you. I recommend you get a new water heater for the LNG service; it will be safer and more efficient.

Cindy Wells

Posted on Nov 10, 2014

Ad

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad
  • 2976 Answers

SOURCE: ECO failure. Replaced the gas control thermostat & vapor sensor

It sounds like your gas/air mixture needs to be adjusted. The flame should have just the slightest amount of white, at the very tip. The rest should be evenly blue. There is an air vent adjustment in the line to the burner, right after the gas input.

Posted on Sep 03, 2009

  • 244 Answers

SOURCE: need hi and lo setting for natural gas and correct

Contact Paloma/Rheem customer (800-432-8373) support they can walk you through the process

Posted on Nov 11, 2009

SOURCE: How can I tell how many BTU's my natural gas meter

The easiest way is to add up total of all gas appliances in house, using information from each appliance label.
Measure diameter of pipe at meter.
Call gas company and ask them if you need larger pipe and/or meter coming into house.

Following pdf has calculations for figuring:
http://www.gpta.net/Classes/Gas%20sizing/Gaspipe%20Sizing.pdf

Posted on Feb 03, 2011

  • 8 Answers

SOURCE: How can I tell how

I have a Rheem PTG-74XP tankless. I had the same code 12, low/inconsistant gas problem (assumption). In my case the gas (propane) pressure coming in was fine, the reason the flame rods/electrodes would not burn correctly was residue on/in them. It hasn't happened since they were cleaned. Hope this helps, dj :)

Posted on Feb 03, 2011

SOURCE: where is anode rod located on 100 Gallon rheem

Anode rods for tank-type water heaters are located on top of tank.
This is true since anodes are about 44" long.
Top of anode is standard 1-1/16" hex nut.
Anodes can be located in 2 different places: either directly screwed into top of tank -or- attached to hot water nipple.
Most times the exploded parts diagram in manual simply shows 'anode rod' without specifing exact location. If your tank has long warranty, then it can have two anode rods, and 1 will be on top and the other probably attached to hot water nipple, or there could be two anodes screwed into top of tank.
http://waterheatertimer.org/Replace-anode-rod.html

If anode is screwed into top of tank, then it will be under a plastic cap -or- it will be concealed under the top cover of tank.
Look for plastic cap, and if none shows, then remove screws holding down metal cover and look there for 1-1/16" hex nut.
Lastly, remove hot water nipple and check for anode located there.
If you have 2 anode rods, then replace with same metal for each.

Add a comment for more free help.
Also take advantage of fixya expert assistance live.
For a price, expert works with you while you work on water heater or any do-it-yourself project.
Fixya is always less expensive than a service call.

Posted on Mar 22, 2011

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Can Richmond tankless heater which is now LP be converted to natural gas?


If it can, then it is done with dip switch settings.
Read your product manual.
Switching types of gas, and messing with dip switches is dangerous.
LP gas burns much hotter than NG, and LP pressures are much higher than NG
Call Rheem with serial number and they might supply the information to you, but will likely tell you to call service technician... leaving you in exact same spot you are in now.
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Gene

Sep 29, 2014 | Rheem Richmond Encore Tankless LP Gas...

1 Answer

How do I convert my rheem water heater from lp to natural gas model#21vp40-1p


Call Rheem
Generally the company does not support changing type of gas since propane burns much hotter and has more pressure than natural gas.
You need different gas control valve, and need cast iron burner and orifice than matches that specific gas control valve.
http://waterheatertimer.org/images/IMG_1826-LP-burner-450.jpg
http://waterheatertimer.org/Water-heater-manufacturers.html

Gene

Sep 14, 2014 | Water Heaters

1 Answer

Is a 650 delta gas valve for natural gas be used with lp


no.
propane burns much hotter than natural gas, and has higher pressure
gas valve and burner and orifice must be changed to switch between natural gas and propane
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html
Most manufacturers do not support converting gas on heater.

Gene

Sep 13, 2014 | Rheem 40 Gallon FVR NATGAS Low WATER...

1 Answer

Can 42v50- 36pf be converted to natural gas ?


You would have to inquire of Rheem. Some appliance manufacturers have conversion kits available

Mar 24, 2013 | Rheem 42V50-36PF Professional Propane Gas...

1 Answer

Rheem 300170 HWS service manual


1) Rheem does not post service manuals.
Call Rheem and ask why, since the other big manufacturers, AO Smith and Bradford White do post service manuals.

2) You need new propane gas control valve, and matching combustion parts to fit existing tank.
http://waterheatertimer.org/pdf/Rheem-Water-Heater-parts-catalog.pdf
http://waterheatertimer.org/images/IMG_1826-LP-burner-450.jpg

3) Rheem does not recommend changing gas type, especially from natural gas to LPG.
LPG is higher pressure, and burns much hotter and requires cast iron burner, unlike the lighter-weight metal used for Natural gas burner.
The manifold tube and thermocouple must match the gas control valve, and gas-type and have correct thread for propane.
The combustion chamber and heat transfer surface can also be heavier metal for propane heaters.

Feb 08, 2013 | Water Heaters

1 Answer

Rheem/Ecosense, ECO-180DVP, tankless water heater,flashing code 11


Unknown if this is new installation.
New installation, you may need more gas to the unit.
Call the propane dealer.
The dip switches for selecting LP or NG may be set incorrectly.

If this installation worked before and stopped working:
Before calling service technician, copy following link for troubleshooting resources:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Error code 11 is ignition failure.
Keeping up with regular maintenance can eliminate a lot of common error codes, but the cost is greater than expected savings from owning a tankless.
Regular maintenance such as cleaning combustion parts, checking gas pressure, testing solenoid gas valve, sanding carbon off the igniter, checking igniter wiring harness, etc.

Aug 21, 2012 | Water Heaters

1 Answer

Can the Rheem PTG2-42PVN be used with propane gas?


I believe PTG2-42PVN is natural gas.
Rheem site does not show that model number.
As a general rule, Rhemm does not recommend converting NG to LP and LP to NG

Contact Rheem. 1-800-432-8373
http://www.rheem.com/products/tankless_water_heaters/customer_support/
http://www.rheem.com/products/tankless_water_heaters/
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html

Jun 24, 2011 | Rheem Tankless Hot Water Heater...

1 Answer

I just had a noritz tankless hot water heater converted from LP gas to natural gas, and had the hot water heater moved outside my garage. Before the gas change over and the move, I could turn on my garage...


One thing that comes to mind right off is did they use proper size orifices when they converted? L.P. uses a much smaller size then natural gas because it runs at a much higher pressure. Just a thought but I had a water heater from the factory for a mobile home that had the nat. gas sticker on gas valve and I hooked it up in town to nat. gas supply. Unfortunately it had L.P. orifices and I was in a hurry to get to another job ,lit it turned burner on and left. Two hours later my customer called to say they didn't have enough hot water. Didn't take long to discover what the problem was and correct it. Thank god for good customers. Hope this helps you. Thanks

Nov 24, 2010 | Bosch Indoor Gas Tankless Water Heater...

1 Answer

Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm: hi i have a rheem tankless water heater, with flas...


Sounds like you may have the wrong type gas going to this? Is this an LP gas or natural gas unit? will say on label. Natural gas units run only on natural gas ditto for LP. Could be issue with manifold pressure settings. Could be obstruction in exchanger or vent. Have a authorized technician check over

May 17, 2010 | Rheem Tankless Hot Water Heater...

1 Answer

CHANGING AN ORFICE


This unit cannot be converted from gas type to gas type.

Feb 24, 2009 | Rheem RTG-53PVN Indoor Natural Gas...

Not finding what you are looking for?
Rheem Tankless Hot Water Heater Rtg-74pvp-2 7.4 Gpm Logo

147 people viewed this question

Ask a Question

Usually answered in minutes!

Top Rheem Water Heaters Experts

Donni Steen

Level 3 Expert

659 Answers

gizmonix

Level 1 Expert

13 Answers

Brad Brown

Level 3 Expert

15691 Answers

Are you a Rheem Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...