Question about Noritz 7.1 Gpm Natural Ng Gas Tankless Hot Water Heater

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WHAT SIZE HOLE IN JET ON HOT WATER HEATER TO CHANGE FROM NATURAL GAS TO LP GAS

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That doesnt work with these units they are manufactured gas specific. The manifold plate would need to be changed as well as notification to Noritz to have a new serial # issued. PC board reprogram required, etc. Buy a natural gas or LP model.

Posted on May 20, 2010

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Posted on Jan 02, 2017

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


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

Nov 10, 2014 | Rheem Tankless Hot Water Heater...

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

Change orfis in water heater


Do NOT do that.
If you put LP gas to NG heater you can cause explosion.
Contact manufacturer and see if they sell conversion kit. Most do not.
Copy following link for general overview and cautions:
http://waterheatertimer.org/pdf/Convert-Natural-Gas-water-heater-to-LP-heater.pdf

Jul 11, 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

Recently i got a hotwater heater installed in my home, i was told it was for natural gas and i believed the "experienced salesman". turns out they rigged a propane hotwater heater into my homes...


Those dirty crooks, Only kidding. They did the same thing to me a while back, except it was a natural gas heater with lp tank out in the yard, bought it from the gas co who services the tank, found out they ordered a dozen heaters, all of them natural gas. I said to the guy, do these need to be switched over or jetted or something? He says why, I said because it says natural gas only. It worked fine, just smudged black smoke out. He brought out another heater and swapped it out, seems you can't change the burner? Don't make sense. Anyway, I would take it back to the place you got it and say get up the coins, It cost $400 to get the plumber back to hook this thing up!! And we have no hot water. And my shotgun has a hair trigger. I would say it is dangerous enough to get his attention on the matter without going to court. Hope this helps.

Dec 21, 2010 | Water Heaters

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

No hot water


Aquastar 1600H NG Natural Gas Tankless Water Heater Bosch AquaStar Model 1600H NG Natural Gas Whole house tankless gas water heater, 117,000 Btu input, natural draft with hydro-generated ignition. Provides endless hot water for one major application at a time . Can replace 40-gallon storage tank water heater. Optional Accessory: Model AQ1- Power vent with built-in... More freeze protection when venting horizontally. Capacity: 1 to 2 Bathrooms Dimensions: 8.75D x 18.25 W x 29.75H Weight: 40 Max GPM @ 45F Rise: 4.2 Energy Factor: NG .80 LP .84 Minimum Input: 28,000 Maximum Input: 117,000 Vent Size: 5 Gas Connection: 3/4 Water Connections: 1/2 Warranty: 12-year warranty on heat exchanger, 2-year on parts Features: Endless hot water Can save up to 50% off utility costs annually Perfect for one major application at a time No standing pilot, hydro generated

Mar 01, 2009 | Bosch 1600H-NG Natural Gas AquaStar...

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