Bradford White Water Heater Age Decoder: Find Your Manufacture Date
Last updated: May 2026
Bradford White uses a two-letter date code at the start of the serial number, which makes it one of the harder brands to decode by eye. This page is dedicated to Bradford White units specifically: the decoder below is pre-selected for the brand, and the content covers serial-number format, lifespan, model lines, and replacement guidance specific to Bradford White. If you need help identifying your water heater's age over the phone or want to discuss replacement options, call (641) 637-5215. You can also view the universal decoder if your unit is a different brand.
Bradford White Water Heater Age Decoder
Enter your Bradford White serial number. The first two letters encode the manufacture year and month.
Find the serial number on the rating plate sticker on the side of your water heater, near the warning labels and Energy Guide.
Where do I find my serial number? +
The serial number is printed on the rating plate, a sticker on the side of your water heater near the warning labels and Energy Guide. It is usually in the upper third of the tank, near the gas valve on a gas unit or near the thermostat on an electric unit.
The serial number is typically 8 to 12 characters long and is labeled "Serial No." or "S/N". Do not confuse it with the model number, which is a separate, longer alphanumeric field on the same sticker. If the sticker is faded, use your phone's flashlight and take a photo at an angle to reduce glare.
Independent plumbing pricing research. No obligation.
How to Read a Bradford White Serial Number
Bradford White assigns each water heater a serial number printed on the rating plate, a vertical sticker on the side of the tank. The plate is bordered in red on most Bradford White models and includes the company logo, model number, serial number, gallon capacity, BTU or kilowatt rating, recovery rate, and the Energy Guide data block. The sticker is positioned in the upper third of the tank on residential units, typically within arm's reach when you stand beside the unit. On gas models, the plate sits just above or beside the gas control valve. On electric models, it is near the upper thermostat access panel.
The serial number field is labeled either "Serial Number" or "Serial No." and contains nine to eleven characters. The first two characters are letters that encode the manufacture year and month. The remaining characters are a plant code (one or two characters that identify the manufacturing facility) and a sequence number (the unit\'s position in that day\'s production run). For age-decoding purposes, only the first two characters matter. The rest is internal Bradford White tracking data that has no meaning to a homeowner or plumber.
The Year Code (First Letter)
The year code is a single letter from A through V, skipping I and O. The letter I is skipped to avoid confusion with the digit 1, and O is skipped to avoid confusion with the digit 0. This leaves twenty usable letters, and Bradford White cycles through them in order, restarting at A every twenty years. The most recent restart was January 2024 (A = 2024), and the previous cycle started January 2004 (A = 2004). The cycle before that started January 1984 (A = 1984), which was the first year Bradford White used this encoding system in its current form.
Because the year code cycles, a single letter can correspond to two or three possible years. The letter K, for example, could indicate 1993, 2013, or possibly 2033 when the next cycle reaches that letter. The decoder above defaults to the most recent possible year, which is correct for nearly every water heater still in service. A Bradford White unit from 1993 would be over thirty years old, well past any reasonable expectation of continued operation, so the modern year is almost always the right interpretation. If you need to distinguish between two possible decades, check the rating plate for technology features that did not exist in the older cycle: an electronic ICON gas valve, an FVIR-compliant sealed combustion chamber, or an Energy Star label indicate a 2004-era or later unit at minimum.
The Month Code (Second Letter)
The month code is a single letter from A through M, skipping I. A is January, B is February, C is March, D is April, E is May, F is June, G is July, H is August, J is September, K is October, L is November, and M is December. The letter I is again skipped to prevent confusion with the digit 1. Month codes do not cycle the way year codes do; each letter unambiguously indicates one month.
Worked Examples
Consider a Bradford White serial number that begins with JH. The first letter J corresponds to 2012 (or 1992 in the previous cycle). The second letter H corresponds to August. The unit was manufactured in August 2012, making it approximately 13 to 14 years old as of mid-2026, depending on the exact decode month. This unit is past the typical 10 to 13 year lifespan for Bradford White tank water heaters and warrants near-term replacement planning.
Consider another serial number beginning with SB. The first letter S corresponds to 2020. The second letter B corresponds to February. The unit was manufactured in February 2020 and is approximately 6 years old. This unit is well within its expected lifespan, and replacement is not a near-term consideration. Annual maintenance is the appropriate focus: flush the tank, inspect the anode rod, and test the temperature and pressure relief valve.
A third example: a serial beginning with CA decodes to C (2026 in the current cycle, since the cycle restarted at A in 2024) and A (January). The unit was manufactured in January 2026 and is essentially new. If you bought a Bradford White recently, expect a serial number that decodes to the current or previous year.
Common Mistakes When Decoding Bradford White Serial Numbers
The first common mistake is decoding the model number instead of the serial number. The two fields are adjacent on the rating plate and easy to confuse. The model number is the longer alphanumeric string and includes capacity codes like 40T6 or 50T6 (a 40-gallon or 50-gallon tank, six-year warranty). The serial number is shorter, begins with two letters, and is labeled "Serial No." or "Serial Number." If your decode produces a nonsensical date such as a year far in the future or a month that does not exist, you are likely reading the model number.
The second common mistake is mistaking the letter I or O for the digit 1 or 0. Bradford White deliberately skips both letters in its encoding to prevent this exact confusion, so if you see a character that looks like an I or O in the first two positions, look more carefully under good lighting. It will turn out to be either a digit (which means you are reading the wrong field) or a similar-looking letter such as J or Q.
The third common mistake is using the wrong year when the letter has multiple possibilities. If your Bradford White unit looks like a 2010s or 2020s vintage (electronic gas valve, sealed combustion chamber, Energy Star label), use the most recent year for that letter. If the unit looks visibly older (atmospheric vent, no electronic ignition, no Energy Guide label format from 2007 or later), use the earlier year.
Common Bradford White Age-Related Issues
Every water heater brand has a characteristic wear pattern. Bradford White units, on average, outlast lower-priced builder-grade tanks by 2 to 4 years, but they still wear out in predictable ways. Understanding the typical issue at each age band helps you plan maintenance and replacement timing.
5 to 7 Years: Anode Rod Depletion and Thermostat Wear
A Bradford White tank water heater in the 5 to 7 year range is generally healthy but has begun to show wear. The sacrificial anode rod, which is a magnesium or aluminum-zinc-tin rod suspended inside the tank, has typically depleted 40 to 70 percent of its mass by this point in normal water conditions. The anode rod is a metal cylinder threaded into the top of the tank that corrodes preferentially to the steel tank shell, protecting the tank from internal corrosion through an electrochemical reaction. Once it is fully consumed, the tank shell becomes the next thing the water attacks.
On gas units in this age range, the most common service issue is gas control valve sensor drift. The ICON System electronic gas valve, used on Defender and most modern Bradford White residential gas units, occasionally develops thermistor drift that causes the unit to overshoot or undershoot the set temperature. The fix is typically a recalibration by a Bradford White service technician or a replacement of the gas valve assembly. On electric units, thermostat replacement is the most common 5-to-7-year service. A failed upper thermostat causes no hot water; a failed lower thermostat causes the tank to run out of hot water sooner than expected.
8 to 10 Years: Sediment Accumulation and Vent Issues
By 8 to 10 years, sediment has accumulated at the bottom of the tank even on units with the Hydrojet sediment-reduction inlet tube. The Hydrojet system, which uses a curved inlet tube to direct cold water along the tank bottom in a pattern that disturbs sediment, slows accumulation but does not eliminate it. In a tank that has not been flushed annually, sediment in this age range may have built up to a layer two or three inches deep at the tank bottom. The symptoms are reduced hot water capacity, longer recovery times, and a popping or rumbling sound when the unit fires (gas) or cycles (electric).
Gas units in this age range may develop vent system issues. On atmospheric-vent units, the draft hood and vent connector can accumulate corrosion at the joints, and the flue baffle inside the tank can warp or shift. On power-vent units, the inducer motor may begin to fail, signaled by a louder operation, slow startup, or the unit refusing to fire. Bradford White uses a status light on the gas valve to indicate fault codes; a flashing red light during ignition usually points to a vent or inducer problem rather than a gas supply or valve issue.
10 to 12 Years: Tank Corrosion Onset
At 10 to 12 years, a Bradford White tank in average water conditions is approaching the end of its expected service life. If the anode rod was never replaced, internal tank corrosion has started. The first visible symptom is often discolored hot water, ranging from yellow to brown to rusty. Discolored cold water is unlikely to be the water heater since cold water bypasses the tank entirely; that is usually a galvanized supply line issue. Discolored hot water that resolves after a few seconds of running is the classic sign of internal tank corrosion. See our water heater repair cost guide for what a tank-corrosion diagnosis typically leads to.
The temperature and pressure relief valve, abbreviated T and P valve, sometimes begins to weep or drip at this age. The T and P valve is the safety device that releases water if either temperature or pressure exceeds safe limits, typically 210 degrees Fahrenheit or 150 pounds per square inch. A weeping valve may indicate thermal expansion pressure spikes (which can be addressed with an expansion tank) or a failing valve. A continuously dripping valve is past the address-with-an-expansion-tank stage and the valve itself should be replaced for safety.
12 Years and Beyond: End of Life
A Bradford White tank water heater at 12 years or more is on borrowed time. The brand's typical lifespan ceiling is 13 to 15 years in soft water, lower in hard water. Tank failures at this age are often sudden and complete: a corroded section of the tank shell fails under normal water pressure and the unit empties its full water volume rapidly. A 50-gallon tank failure releases enough water to cause $5,000 to $15,000 in damage to floors, walls, drywall, and personal property in the surrounding area. Emergency replacement, where a plumber installs a unit on short notice, costs $200 to $500 more than a planned replacement.
Bradford White units in hard water cities such as Phoenix, Las Vegas, Tampa, and Orlando typically reach end of life at 8 to 11 years instead of 10 to 13. Hard water deposits calcium carbonate scale on the heating element (electric) or at the tank bottom (gas), insulating the heat source from the water and forcing the unit to work harder. Scale formation also accelerates anode rod consumption. If your unit is in a hard water city and is approaching 10 years, replacement planning should already be underway.
Bradford White Model Lines
Bradford White produces multiple residential and commercial water heater lines. Lifespan and replacement cost vary by line. Identifying which line your unit belongs to is helpful when budgeting for replacement and when sourcing repair parts.
Defender FVIR (Residential Gas)
The Defender line is Bradford White's residential gas tank water heater, designed to meet the Flammable Vapor Ignition Resistant (FVIR) standard required by ANSI Z21.10.1 since 2003. Defender models include a sealed combustion chamber with a flame arrestor screen at the base that prevents flames from escaping the chamber if flammable vapors are present in the surrounding air. The line includes atmospheric vent (most common), direct vent, and power vent variants. Sizes range from 30 to 75 gallons. Typical lifespan in normal water conditions is 10 to 13 years. Replacement cost in 2026, installed, ranges from $1,400 to $2,800 depending on size, vent configuration, and local labor rates.
RG and RE Residential Series
The RG (residential gas) and RE (residential electric) series cover the standard tank models, including the Defender FVIR variants for gas. Electric units are simpler in construction than gas: they have no combustion chamber, no vent system, and no gas valve. The simpler construction means lower replacement cost, typically $1,200 to $2,400 installed in 2026. Electric units generally last as long as gas units when properly maintained, though they are more sensitive to scale buildup on the heating elements.
eF Series (High-Efficiency Condensing Gas)
The eF series is Bradford White's high-efficiency gas tank line, featuring a condensing heat exchanger that recovers heat from the combustion exhaust gases. eF units have higher Energy Factor and Uniform Energy Factor ratings than standard Defender units and qualify for federal energy efficiency tax credits and many state and utility rebates. The condensing design vents through PVC instead of metal, which simplifies installation in some configurations. Lifespan is similar to standard Defender units (10 to 13 years), though the condensing heat exchanger requires occasional cleaning of the condensate trap. Installed cost in 2026 is $2,000 to $3,500, partially offset by federal and utility incentives.
AeroTherm Heat Pump (Hybrid Electric)
AeroTherm is Bradford White's heat pump water heater line, which extracts heat from ambient air and transfers it to the water in the tank. AeroTherm units are 2 to 3 times more efficient than standard electric tank units and qualify for the federal Energy Efficient Home Improvement Credit (25C), worth 30 percent of installed cost up to $600 per year. Installed cost in 2026 is $2,500 to $4,500 before the tax credit. AeroTherm units have a longer expected lifespan than standard electric tanks: 12 to 15 years is typical. The heat pump compressor and fan add some maintenance complexity, but the energy savings often pay back the price difference within 5 to 7 years for households with high hot water demand.
Brute and Commercial Lines
The Brute line and other commercial Bradford White products are designed for high-volume applications such as restaurants, hotels, multi-unit residential buildings, and industrial facilities. Commercial units are physically larger, higher BTU, and built for continuous duty cycles. They use the same letter-letter date encoding on the serial number as residential units, so the decoder above works on commercial Bradford Whites. Lifespan and replacement cost are not directly comparable to residential because commercial sizing and installation factors dominate.
Builder-Grade vs Premium Within Bradford White
Even within the Bradford White brand, there are tier differences. The basic 6-year-warranty Defender models are the entry-level residential gas line and represent the bulk of Bradford White units installed in new homes and standard replacements. Models with 8 or 10 year warranties have thicker anode rods, larger heating surfaces, and sometimes a second anode rod, all of which extend service life by 2 to 4 years compared to the 6-year models. If you are replacing a Bradford White and want to maximize lifespan, the 8 or 10 year warranty tier typically delivers proportional value.
Bradford White Repair vs Replacement Decision
The repair-or-replace decision on a Bradford White depends on the unit's age, the specific failure mode, and local installation costs. Bradford White has some brand-specific factors that affect this decision.
Repair Costs Common to Bradford White
The most common Bradford White repairs and their typical 2026 installed costs are: anode rod replacement at $150 to $300, thermostat replacement at $200 to $400 on electric units, gas valve assembly replacement at $400 to $700 on Defender and ICON-equipped models, T and P valve replacement at $50 to $150, dip tube replacement at $150 to $300, and inducer motor replacement at $300 to $500 on power-vent units. A full heating element replacement on an electric unit, including both upper and lower elements, runs $200 to $500.
Parts availability for Bradford White is generally good through plumbing supply houses. Because the brand sells through wholesalers rather than retail, replacement parts are stocked at the plumber-facing supply chain rather than at hardware stores. A plumber familiar with the brand can usually get common parts the same day or next day. Less common parts such as a specific ICON gas valve revision may require a multi-day order.
Replacement Costs Common to Bradford White
Replacement cost for a Bradford White unit in 2026 ranges as follows, installed: a 40 to 50 gallon Defender atmospheric vent gas unit is $1,400 to $2,800; a 40 to 50 gallon RE electric unit is $1,200 to $2,400; a 50 gallon eF condensing gas unit is $2,000 to $3,500; an AeroTherm 50 to 80 gallon heat pump unit is $2,500 to $4,500 before the federal tax credit; a commercial Brute unit varies widely with size and configuration. Add $200 to $500 for emergency replacement, $300 to $800 if venting needs modification (atmospheric to power vent, for example), and $200 to $500 for an expansion tank if one is required by local code or by the home's plumbing configuration. See the water heater installation cost guide for a detailed breakdown of installation factors.
The 50 Percent Rule Applied to Bradford White
Apply the 50 percent rule as a first-pass decision framework: if the repair quote is more than 50 percent of replacement cost and the unit is past half of its expected lifespan, replacement is the better financial decision. For a 9-year-old Defender (past half of the 10 to 13 year typical lifespan), any repair over $700 to $1,000 warrants a replacement conversation. For a 6-year-old AeroTherm (well within its 12 to 15 year typical lifespan), even a $1,200 repair such as compressor replacement might be the right call if the rest of the unit is sound.
Pro-Only Distribution as a Decision Factor
Bradford White's wholesale-only distribution model means that you cannot pick up a replacement unit at Home Depot or Lowe's. The replacement must come through a licensed plumber's wholesale account or a homeowner-accessible supply house that stocks Bradford White. In practice this means a slightly slower scheduling timeline if the chosen unit is not in stock locally, but a wider parts and service ecosystem in most metro areas. If you are committed to the Bradford White brand, factor 1 to 3 days of scheduling time into the replacement timeline.
Frequently Asked Questions
The first two letters of the Bradford White serial number encode the manufacture year and month. The first letter is the year code (A through V, cycling every 20 years and skipping I and O), and the second letter is the month code (A=January through M=December, skipping I). A serial number that begins with JH was manufactured in August 2012, and one that begins with SB was manufactured in February 2020. Enter your full serial number into the decoder above for the exact date and current age.
The serial number is printed on the rating plate, a vertical sticker on the side of the tank in the upper third, near the gas valve on gas units or near the upper thermostat access cover on electric units. The sticker is labeled with the company name in red, lists the model number, serial number, capacity, BTU or kilowatt rating, and Energy Guide data. The serial number field is labeled either "Serial Number" or "Serial No.". Do not confuse it with the model number on the same plate, which is longer and includes capacity codes like 50T6 for a 50-gallon unit.
Read only the first two characters to determine the manufacture date. The first character is a letter that represents the year, and the second character is a letter that represents the month. The remaining characters are a plant code and a sequence number unique to that production run. You do not need any character after the second letter to decode the date. If you see a digit in either of the first two positions, your serial number is from before 1986 or is non-standard, and you should call the manufacturer for help.
Bradford White tank water heaters typically last 10 to 13 years in normal water conditions, slightly longer than the national average of 8 to 12 years for tank units. The longer typical lifespan is attributed to the brand's Vitraglas glass lining, Hydrojet sediment-reduction inlet tube, and the magnesium anode rod design. In hard water cities such as Phoenix, Las Vegas, Tampa, and Orlando, shorten this range by 2 to 4 years. Bradford White tankless and condensing models can run 15 to 20 years with annual descaling.
Standard Bradford White residential tank warranties run 6 years on the tank and 6 years on parts. Some Defender, eF, and AeroTherm models carry 8 or 10 year tank warranties depending on the year of manufacture. Commercial Brute units have separate warranty schedules. Calculate the age from the serial number using the decoder above, then compare to your specific model's warranty term. If you do not have the original purchase paperwork, the manufacturer can confirm coverage from the serial and model number.
Bradford White has used a trade-only distribution model since the early 1990s. Units are sold to licensed plumbing contractors and wholesale plumbing supply houses, not to big-box retail stores or to homeowners directly. The brand framing is that professional installation ensures correct sizing, venting, and code compliance. The practical effect is that Bradford White units are typically installed by plumbers who specialize in the brand, and replacement parts are easier to source through a plumbing supply house than at a hardware store.
The year-letter code cycles every 20 years, so a Bradford White serial number that starts with the letter K could indicate either 1993 or 2013, and a serial starting with C could indicate 1986, 2006, or 2026. The decoder above defaults to the most recent year. To distinguish between the two possibilities, look at the rating plate for the manufacturer's model series, technology indicators (electronic gas valve, FVIR sealed combustion chamber, ICON status light), or the Energy Guide year. A 2013 Defender FVIR unit will have features that did not exist on a 1993 model.
FVIR stands for Flammable Vapor Ignition Resistant. It refers to the sealed combustion chamber design required on residential gas water heaters by ANSI Z21.10.1 standards since 2003. A Bradford White Defender unit is the company's implementation of FVIR. If your serial number decodes to 2004 or later and the unit is gas, it is almost certainly an FVIR model. FVIR units have a flat-bottomed sealed chamber with a flame arrestor screen and a closed combustion air intake at the base.
Vitraglas is Bradford White's proprietary glass-on-steel tank lining. A ceramic enamel slurry is sprayed inside the steel tank and fused at high temperature to form a smooth, corrosion-resistant interior surface. Hydrojet is the brand's sediment-reduction inlet tube, designed to direct incoming cold water along the tank bottom in a pattern that disturbs sediment before it can settle. Together, these features are among the reasons Bradford White tanks often outlast the lower-priced builder-grade units installed in many new homes.
A 10-year-old Bradford White is past the warranty period but still within typical lifespan. Use the 50 percent rule: if the repair cost exceeds 50 percent of replacement cost, replace it. A $400 thermostat or gas valve repair on a tank that costs $1,500 to $2,500 to replace is borderline. The anode rod condition is the deciding factor for repair-versus-replace at this age. If the anode is fully consumed and the tank has visible internal sediment, replacement is the wiser investment. If the anode has remaining material and the tank flushes cleanly, a repair can buy 2 to 4 more years.
Methodology and Independence
Plumbing Price Guide is an independent pricing research resource. The cost ranges on this page are compiled from public manufacturer documentation, plumbing supply house pricing, contractor labor surveys, and homeowner-reported installation invoices. The lifespan ranges are based on aggregate manufacturer-published expected service life adjusted for water quality and use patterns documented in the plumbing service literature. We do not sell Bradford White units, we do not receive commissions on referrals to specific contractors, and we do not have affiliate relationships with Bradford White or its competitors. For a fuller description of how cost research is compiled, see our methodology page.
The decoder logic above is based on Bradford White's published serial-number encoding, which has remained stable since the mid-1980s. The two-letter year-and-month code is documented in Bradford White service manuals and trade publications. The decoder defaults to the most recent year when a letter has multiple possible interpretations, which is the correct interpretation for nearly every unit currently in service. If your unit predates 1986, the encoding may differ and the decoder may not produce a reliable result; in that case, contact Bradford White directly with the serial number for a manual lookup.
Get Help With Your Bradford White
If you have decoded your Bradford White and want to discuss next steps with a licensed plumber, call (641) 637-5215. Have your zip code ready so the call routing can connect you with a plumber serving your area. The call is free and there is no obligation to schedule service. A plumber can confirm the age decode, inspect the unit if needed, and provide a written estimate for repair or replacement. For brand-agnostic pricing benchmarks before the call, see the water heater installation cost guide and the water heater repair cost guide.
Related Guides
- Universal Water Heater Age Decoder (all brands)
- Water Heater Installation Cost Guide
- Water Heater Repair Cost Guide
- Water Heater Replacement Cost Guide
- Tankless Water Heater Cost Guide
- Pricing Research Methodology
Talk to a Plumbing Expert
Get a cost estimate and connect with a local plumber.
(641) 637-5215No obligation. Local professionals in your area.
