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50 Gallon - 40,000 BTU Defender Safety System High EF Residential Water Heater (Nat Gas)
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M-4-5036FBN has been discontinued
Discontinued May 9, 2016
This product was discontinued by the manufacturer.
Suggested Alternative:
50 Gallon - 40,000 BTU Defender Safety System High Efficiency Residential Atmospheric Water Heater (Natural Gas)
SKU:RG250T6N
(97)
VIEW ALTERNATIVE
VIEW ALTERNATIVE

Product Highlights

Product Highlight: Fuel Type
Natural Gas
Product Highlight: Warranty
6 Year Limited Tank/ 6 Year Limited on Component Parts Warranty
Product Highlight: Capacity (Gallons)
50 Gallons
Product Highlight: Height (Inches)
59.625" Height
Product Highlight: Energy Star Rated
No
Product Highlight: Diameter (Inches)
22" Diameter

Description

This model is NOT Energy Star qualified

Features:
  • High Energy Factor (EF) Ratings - These models qualify for most energy rebate programs
  • Advanced ScreenLok Technology Flame Arrestor design
  • Resettable thermal switch
  • Factory installed Hydrojet Total Performance System
  • Altitude Specific - Only For Applications Up to 2000'

Bradford White's high efficiency, energy saver, atmospheric vent residential gas water heater features the Defender Safety System® and offers additional insulation and integral heat traps to reduce stand-by heat loss.

Specs

Intended Household:

3-4 Person

Application:

Plumbing

Vent Size:

3 x 4

Recovery Efficiency:

80%

Water Connection:

3/4"

Capacity (Gallons):

50

Fuel Type:

Natural Gas

BTU Input:

40000

1st Hour Delivery (Gallons):

89

Height (Inches):

59.625"

Diameter (Inches):

22"

Weight (lbs):

151 lbs

Warranty:

6 Year Limited Tank/ 6 Year Limited on Component Parts

Energy Factor:

0.62

Energy Star Rated:

No

Contact

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Compare Similar Products

Brand
Intended Household
Water Connection
Capacity (Gallons)
Fuel Type
BTU Input
3-4 Person
3/4"
50
Natural Gas
40000

You May Also Need

19 Replacement Parts

A420 Aluminum Anode Rod (3/4" NPT x 27-1/8" x 3"), 415-49560-07
SKU: 415-49560-07
Bradford White
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Product Reviews

4.72 out of 36 reviews
97% would recommend this product
4.72
out of 36 Reviews
97% would recommend this product
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5 star
78%
4 star
17%
3 star
6%
2 star
0%
1 star
0%
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Customer Images

Most Liked Positive Review

Great water heater

I bought this to fill my huge new jacuzzi bathtub and it works like a charm! It took only about 1 1/2 hours to install and fit my current size venting system. The plumber told me the only way to fill the tub with hot water was to get a tankless system, but this is not true. And...it was about $200 cheaper than the local hardware store price for same model.
VS

Most Liked Negative Review

Not made in USA

Delivered within a week. Little ding on bottom due to shipment but minor issue. Took 96 minutes to initially heat up, once the water was heated, I haven't had a problem. Very competitive pricing. Haven't noticed price increase on my electric/ gas bill. Very quiet compared to my Sears Kenmore heater. I am upset that water heater body is made in USA, but electric component is still made in China and is a Honeywell brand. The delivery company emails tracking info and you get a phone call to confirm shipment time and date.
Showing 1-10 of 36 reviews

Hooked up quickly and is running well!

Although the shipment was delayed 10 days from the manufacturer, it was well worth the wait. Installed quickly and started right up. I have been running it for the last 2 weeks without any problems and produces plenty of hot water!
Bucky
Richmond, VA
12 years ago
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great product

Looks well made, was delivered with cosmetic dings but it seems to be working great. Hot water in less than 90 mins after installation of the tank. Best of all it is very quite when operating and it is made in the U.S.A
Quality product consumer
San Fransico CA
12 years ago
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Great Product....took a long time to arr

Great heater. Water heats fast, stays hot long. The only complaint that I have is that it took 3 weeks to be delivered.
Russ the pilot
San Mateo, CA
12 years ago
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Does exactly what it says on the tin

No complaints at all, does exactly what it says on the tin. Hardest part was disposing of the 14 year old BW which had begun to leak! Lets hope this one runs as long.... Thanks PexSupply!
Stevet
CT
13 years ago
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Bradford White is working wonderful,

Mounted together with a circulation system in copper pipes powered by the 115V Pump, w/ Timer and Aquastat by Grundfos, which provides instant hot water at each faucet in the home
Willem the Venture Advisor
Los Altos, CA
13 years ago
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So far it's been great, I hope it lasts.

With my old water heater the first shower of the morning was warm, the second one was hot after the heater ran... This one, even my first shower is hot, it retains much more heat then my old one. My last one was a Bradford White as well and lasted 15 years. I hope this new one lasts as long.
Homeowner
Woodbury, MN
13 years ago
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I WOULD BUY THIS PRODUCT AGAIN

Great product came as advertised... install as directed did not take much time.
Jon
Woodbury MN
13 years ago
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Good choice

Great tank, totally satisfied. Hot water all the time, no lukewarm early morning showers. Last one taking one also still has hot water. Decision came down to this tank, and another brand that had digital readouts and electric anode. Was a little leery about too much new stuff. This is old technology slightly modernized. Felt more comfortable with this. Pex Supply was great. The product was delivered within days and their prices were also great!
Dameem
Austintown, Ohio
13 years ago
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Right on time.

I was contacted the day before the arrival time and the truck arrived when stated. The water heater was undamaged and my plumber had it working in less than 90 minutes. It replaces a 50 gal. Bradford that was 14 years old. It works like a charm and I would recommend PexSupply to anyone.
Montana Fisherman
Missoula, MT
13 years ago
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great purchase

Pex Supply shipped quickly. The emails explained everything including the tracking number. The shipping company was fantastic. The box didn't even have a scratch on it. We installed the gas water heater in a couple of hours. 2 hours later my daughter took the deapest bath she has ever had. Loads of hot water. We are very happy and hot. :-)
handy hubby
Prior Lake, MN
13 years ago
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Product Q&A

20 Questions
20 Questions
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Q: do you have instructions for installation and does it come with a stand?

Asked by none 12 years ago

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Does not come with any type of stand. Does come with complete installation instructions.

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Mine was installed professionally. Contact Bradford-White; they may have downloadable instructions. No, it does not come with a stand and none is needed.

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-

Instructions? Pretty straight forward...but there are instructions and no there is no stand. You should have a stand from your other water heater still if needed. Some inside home installation on require a water tray with a drain. Sent from my Windows Phone 8

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- SirKnowAlot

Depending on your juridiction, I believe that you should get a licensed competent plumber to perform the installation. Skipping a step or not understanding the importance of each step could lend itself to detroying your asset, home loved ones. As for a stand...no stand. Washing Ton DC doesn't require I have one.

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Q: I am replacing a water heater: GE 50 gal BTUH 36,000 Smartwater GG50T06AVG00 Model (came with the house), 4 yrs. old and leaking etc. I want to buy this M-4-5036FBN water heater. 1.) Will the things I need to connect be in the same position, or will I need to buy extra parts like pipes and whatever because there will be big differences. 2.) I was told that I also need to buy an expansion tank. What size expansion tank would go with this water heater? which models or model should I consider. I ask because there are so many, and I don't have any idea which would be good or not or what the criteria is for those. I will get a plumber to install. I know you are wondering why not ask the plumber right? I need to know so that I don't end up buying things unnecessary. Some persons do that to senior citizens. So I think this is a good replacement hopefully. Thank you very much for your time. Have a great day.

Asked by Grandma D 12 years ago

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Check height of your existing water heater and compare to the height of the water heater you are purchasing. If they are the same or within an inch or so either way, all the existing connections should be able to be reused. You should not have to buy anything else to do the install.

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I don't have an expansion tank. Weather you'll need one or not depends on your installation. I've been quite satisfied with this heater. Check out waterheaterrescue.com. Join the blog; that's where I learned everything I know about water heaters.

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Q: Does it have a magnesium anode and is it easy to replace if need be? Also, someone told me the insulation rating should be at R-16 or better. What is this one?

Asked by none 12 years ago

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Yes it does have a Mg. anode. I suspect it is not easily replaced, nor are any of these WH anodes. This model does indeed have R 16.

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Yes it has a magnesium anode. It is not hard to change. I replaced mine with an aluminum anode (I think it was aluminum) because I have hard water and the magnesium anode caused the water to smell eggy. I don't know about the insulation but I am very happy with this water heater. Good luck. Sent via the Samsung Galaxy S™ III, an AT&T 4G LTE smartphone

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Q: can you use a drain pan with this model

Asked by Jim 13 years ago

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Most definitely, I did. Don't believe it will ever be needed though. This is the first one I have put in in 40 plus years and never had to look at or touch it since. Sent from my iPhone

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Yes you can use a drain pan with this model.

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Yes, you can use a drain pan.

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-

It has no specifc features for adding a drain pan, but you can always buy a drain pan with a larger diameter than this water heater and sit the heater on top of it.

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- trt

YES - AND YOU ABSOLUTELY SHOULD. If you ever develop a leak at the base, or in some cases higher, the pan will catch it and drain it out of the house provided you have the PVC line fitted for this. I had one that blew with no pan and it caused a little over $3k damage in flooring, sheet rock, moulding. Don't let anyone tell you otherwise.

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Q: What is the estimated Annual Cost of operation?

Asked by Steve 13 years ago

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Outstanding Water heater. Would definitely recommend.

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Well that depends of how much water you use and how many people in your family. Our gas bill has dropped by more than half since we installed this heater. There are two of us in the family. I researched extensively before I purchase this hot water heater and feel it was an excellent choice.

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-

The published annual operating cost is $292/yr. I noticed a sight difference when I replaced my old unit with this one. Actual cost will depend on your household's use and the price of gas in your locality. Gas has been dropping in price recently.

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- SirKnowAlot

The Energy Guide estimates the cost of annual use to be $290 annual. I believe that it is worth mentioning that the unit is designed for a household of 4. I have a house hold of 2 in which case the use of hot water is substantially less. In addition, using a thermal jack on your water heater will help it to maintain its internal temperature....saving you money!

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Q: What is the size of the gas connection for the M-4-5036FBN and what size pan would I need for this unit?

Asked by Patty Mayonaisse 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

The M45036FBN has a ¾ inch connection for gas supply. The drain pan must have a minimum length and width of at least 4 in. (10.2 cm) greater than the diameter of the water heater and must not restrict proper combustion air flow to the water heater.

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The size of natural gas connection is all standard. The flexible gas line for the connection is available at most hardware stores like Home Depot. You do not need a pan for the heater under current codes. See attached installation manual.

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Q: Can / should you use an insulation blanket on the exterior of this water heater?

Asked by WDS 14 years ago

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It is not recommended by the manufacturer. See the link below for more information. http://www.bradfordwhite.com/insulation.asp

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For additional energy savings a blanket can be used.  Simply avoid covering up the access point.

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Q: Does this water heater have connections for space heating?

Asked by Kevin 14 years ago

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no Sudhir

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UNFORTUNATELY, IT DOESN'T. JUST IN AND OUT FOR YOUR DOMESTIC HOT WATER, WHICH WORKS VERY WELL.

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Kevin, In a word, no. This is a very conventional water heater. I've had one for over a year. Works great, no problems. Drained in June very little sediment. I think anode replacement in this unit will be difficult but I don't have to face that for a few years yet.

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There is only one water circuit with this unit. There are not separate connections reserved for heating. There is only the one input and output on the top of the unit.

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i don't know what kevin means by space heating. it has the two standard connections on top. cold in and hot out.

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No, just the standard cold water in and hot water out.

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Kevin, No, it's simply a water heater. An excellent water heater, but just a water heater. Peter

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Q: Where is this unit manufactured?

Asked by Deana 14 years ago

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This unit is manufactured at Bradford White's factory in Michigan.

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Q: What benefit is a 50 gal tank at 50,000BTU over a 50 gal tank at 40,000BTU? (natural gas). Is there a substantial difference in operating costs?

Asked by 14 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

The 50,000 BTU model would provide more hot water, but would also consume more fuel. We are not sure about the precise difference in operating costs, however.

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- ChemSteve

The BTU rating refers to how much heat energy the water heater uses, so a 50,000 BTU unit can heat 50 gallons of water faster than a 40,000 BTU unit. To figure out if this would make sense in your situation, you have to decide if you want better performance or more energy savings. If you currently have a 50-gallon water heater and you're having problems not getting hot water, or the hot water runs out too quickly, you may want the higher BTU rating. However, a 40,000 BTU unit will be cheaper to operate since it uses less natural gas to heat the water. I don't know what the actual difference in cost would be, but since most water heaters last at least 7-10 years, even small differences in cost will add up over time to be quite significant. Look at the energy cost sticker on both units and that should give you a rough idea.

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