Comments on: Tankless hot water heater installation

By: Melodale

Melodale — Tue, 19 Jul 2011 16:04:02 +0000

re: MAREY ECO180 TANKLESS WATER HEATER. ANYONE LOOKING FOR A HOUSE FIRE?? Marey ECO 180 Tankless Water Heater Specifications for wire size, breaker, etc appear to be GROSSLY UNDERSIZED.

This electric ‘whole house’ tanbkless heater appears to use two heater strips for each side of the 240 Volt line. Each heater strip is 9 ohms. Resistors in paralell divide so each side of the line, when enabled or turned on, sees only 4.5 ohms resistance for the incoming 240 volts AC.

Ohms law says V/R=A where V=Volts, R=OhmsResistance, A=Amp(current) Thus 240/4.5=53.3 amps.

Marey manual shows one double pole 40 amp breaker. Spec sheet in the same manual says minimum 50 amp breaker. How will a 53.3 amp current survive on a 40 amp breaker? The units sticker says a 50 amp breaker. How will a 50 amp breaker su4revie a current of 53.3 for any length of time. IT WON’T and DOESN”T. Mareys customer manual for this unit says maximum current draw is 75 amps while their website specs for this same ECO180 heater says maximum current draw is 125 Amps, (which is about right). Marey says to use a #8 wire but a current of 125 amps needs a #4 or better. Customer service says a 40 amp breaker is large enough. HUH !!!

Repeated customer service contact was negative with no corrections or admissions of error coming from their end. What is wrong with these people?

Keep your i\nsujrance up!! House fires anyone?

By: Barbara Tejera

Barbara Tejera — Wed, 23 Mar 2011 03:47:56 +0000

March 22, 2011

I need your help. I had an elecrician install a Titan Model N-120. Right after installation as I turned the faucet ON the water immidiately began to warm up perfectly but I noticed the lights began to flicker some what….that same afternoon….turned the hot water ON…no hot water. Also noticed I had no power at all in the rest of the house. Checked the main breaker outside and it had tripped. Re-set breaker and all worked well including water heater plus reduced temperature control from HI to MED. Investigated a bit more and noticed water heater was installed on a double pole 50 amp breaker instead of a double pole 60 amp breaker as manufacture recommends.
Could this cause the main breaker to trip?

Thanks,
Barbara
Miami, Florida

By: Alfredo Guzman

Alfredo Guzman — Sat, 12 Mar 2011 09:50:38 +0000

I just wanted to let the readers know that Titan Tankless has come out with a more powerful model than the N-210 listed here. The newest and most powerful 2011 digital model tankless water heater is now the N-270. This model needs two 50 AMP double pole breakers.
This was made for larger homes and homes in colder norther climates. I had the N-180 and upgraded to this model as I added another bath. It did the trick and I just had to swap out the breakers. The dimming of lights is just an imbalance in your breaker box and after adjustments and balancing it should eliminate that issue.
You can see the N-270 at the company website:
http://titantankless.com/index.php?l=product_detail&p=14

By: Joseph Tamburo

Joseph Tamburo — Thu, 08 Jul 2010 17:08:36 +0000

I did the same thing as you but I used two of the smaller models as I am in Virginia. I bought two Titan N-120s from the company at http://www.TitanTankless.com and installed them in parallel. It works great for me and cost me a lot less. I dont have the light flickering issue as it is a newer home with upgraded electrical. My electric bill dropped about 25 or so per month consistently but a great tip now is that I can shut off one of them in the summer as I dont need to run both now so I am saving even more. Lots of pluses and I get endless hot water that is the hottest in the neighborhood here!! I have diagrams if anyone needs it.

By: Dorian Shinholster

Dorian Shinholster — Sat, 24 Oct 2009 23:28:20 +0000

I’ve purchased a Marey NG-FI whole house tankless water. It takes approximately 2 minutes for it to produce hot water. Even
after running water for a few minutes, then turning it off and then back on, it still takes up to 2 minutes to get hot. Also I can’t regulate the temperature on front of the control panel. The temperature stays constant at 115 degrees. It will not turn off from the control panel either. I tried calling the manufacturer with no luck. Finally contacted them by e-mail. There suggestion was to return it. Now by the time I take the unit apart, send it to Puerto Rico, What in the world am I suppose to do for hot water until they send the unit back to. can’t return it to retailer either, time has expired. So if anyone has an answer to this problem I surely would appreciate it.

By: todd dahleen

todd dahleen — Sat, 12 Sep 2009 17:29:24 +0000

I bought a Marey tankless LP water heatr. It came with instructions to attach the supplied barbed fitting and push on a soft LP gas hose. Also it said to disconnect it when not in use.
When I tryed to connect a vent to the unit, to my surprise, I found that it took a 3.5 inch vent pipe. There is no such pipe sold here in the US.
After many failed attempts to contact Marey, both email and phone, to no avail, Here I am. Before you buy an LP gas water heater from Marey, get all the specifications.

By: Chris

Chris — Sun, 01 Mar 2009 16:09:24 +0000

Are Marey water heaters associated with the Omega2000 group?

By: Bob Smith

Bob Smith — Fri, 27 Feb 2009 21:55:36 +0000

Omega 2000 Group Corp (Omega 2000 Group Corp)
314 E Kimball Ave, Hemet, CA 92543-4240
Google map the headquaters for the Marey water heaters

By: Lorenzo Reyes

Lorenzo Reyes — Tue, 26 Aug 2008 02:35:11 +0000

The best ever water heater that I experience is the Marey Brand. The company is doing good in the service…They improve so much. I recomended to anyone…

I have many years intalling this water heater specialies in the Santon Power Pack and Power Gas 20 lts Gas Tankless water heater.

Good variety in the Tankless Water Heater…

By: Muffalo

Muffalo — Thu, 07 Aug 2008 11:50:51 +0000

Had the flickering light problem for a year with two Titan 120s installed. The issue is low voltage, or over amperage on the feed lines.

Bugged the electric company, and they moved the local transformer one pole away from my house and all is well.

To trouble shoot, start with a voltage/amperage check at the lines coming into the house to determine if the problem is the feed coming to the house, or the house wiring.

From there, make the changes necessary.