State Water Heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater User Manual

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State Water Heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater Overview

The state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater is a 50-gallon residential gas model designed for households that need reliable hot water, efficient venting, and safe indoor installation. Its direct vent, sealed-combustion design draws combustion air from outside and vents exhaust safely through an exterior wall or roof, making it a strong fit for homes where standard atmospheric venting is not practical. With Ultra-Low NOx performance, this model supports cleaner operation while still delivering dependable everyday hot water for showers, laundry, and kitchen use.

This water heater is especially appealing for homeowners upgrading an older tank, builders specifying a code-conscious appliance, and families needing a mid-size tank with steady recovery. The 50-gallon capacity and 84-gallon first-hour rating make it suitable for small to medium households, while the 38,000 BTU input helps maintain consistent performance. Additional convenience features such as a push-button piezo ignitor and side-mounted recirculation taps add practical installation value. Typical pricing generally falls in the mid-range for residential direct vent gas water heaters, often around $1,100 to $1,800 depending on retailer, region, and installation package. Availability is generally strongest through plumbing distributors, water heater dealers, and select online suppliers.

For buyers comparing direct vent water heaters, this model stands out as a practical balance of efficiency, capacity, and installation flexibility. The state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater is a solid choice for homeowners who want a dependable tank-style unit with a strong warranty and low-emission design.

Technical Specifications for the GS6-50-UODT-L-100

Tank capacity: 50 gallons nominal, 48 gallons rated storage volume
Fuel type: Natural gas
Input: 38,000 BTU maximum
Uniform Energy Factor: 0.65
First-hour rating: 84 gallons
Recovery rate: 41 gallons per hour
Vent type: Direct vent with sealed combustion
Ignition: Pilot with piezo igniter
Water connection size: 3/4-inch
Gas connection: 1/2-inch
Emissions: Ultra-Low NOx
Warranty: 6-year limited tank and 6-year limited parts warranty
Installation type: Indoor residential

Compared with similar 50-gallon direct vent gas water heaters, this model offers a competitive efficiency rating and a practical first-hour output. It is a good middle-ground option for households that want more ventilation flexibility than atmospheric vent models but do not need the higher complexity of power vent systems.

Setup Guide: How to Install and Configure the Direct Vent Gas Water Heater

Installation should be performed by a qualified professional because gas, venting, and combustion air requirements must be followed precisely. Begin by selecting an indoor location with enough clearance for service access, proper vent routing, and a safe drain pan if required by local code. Confirm that the direct vent path can terminate through an exterior wall or roof according to manufacturer instructions and building regulations.

Turn off the gas supply, water supply, and electrical power if applicable before starting work.
Position the tank on a level surface and verify required clearances around the unit.
Connect the cold-water inlet and hot-water outlet using approved 3/4-inch fittings.
Attach the 1/2-inch gas line and test all joints for leaks with an approved leak-detection method.
Install the direct vent piping exactly to specification, ensuring proper slope, sealing, and termination.
Fill the tank completely before lighting the pilot to avoid dry-fire damage.
Use the piezo igniter to light the pilot and set the thermostat to the desired temperature, typically around 120°F for most homes.

Troubleshooting tip: if the pilot will not stay lit, recheck gas supply, venting obstruction, and thermocouple-related components. Safety warning: never operate the heater without a full water tank, and never block the vent termination or combustion air path.

Troubleshooting Common Problems

Like most gas storage water heaters, this model can experience a few common issues. If there is no hot water, check whether the pilot is lit, the gas valve is open, and the thermostat is set correctly. If the water is not hot enough, increase the temperature setting slightly and confirm that demand is not exceeding the first-hour rating.

Pilot will not light: Check gas supply, confirm the pilot assembly is clean, and verify that the ignition procedure is being followed correctly.
Water too cold: Raise the thermostat setting, inspect for sediment buildup, and review household hot water usage.
Reduced recovery: Flush the tank to remove sediment and ensure the burner is operating properly.
Noise or popping sounds: Sediment buildup is likely; perform a tank flush and maintenance inspection.
Vent-related shutdown or poor draft: Inspect the vent for blockage, improper termination, or loose connections.

This model does not typically rely on a digital error-code display, so most fixes are mechanical or gas-supply related rather than code-based. Preventive care includes annual flushing, checking the anode condition, and inspecting the venting system. For warranty support or service, contact the installing contractor, the retailer, or State Water Heaters customer support through the brand’s official service channels.

Pros and Cons of the State Water Heaters GS6-50-UODT-L-100

Pros

Direct vent design improves installation flexibility in homes without a traditional chimney.
Ultra-Low NOx operation supports cleaner combustion and code-conscious purchasing.
50-gallon capacity is well suited for small to medium households.
84-gallon first-hour rating delivers reliable hot water for multiple uses.
Piezo ignition makes lighting simpler than older manual systems.
6-year tank and parts warranty adds value for a mid-range water heater.

Cons

Natural gas only, so it is not suitable for propane setups without a different model.
Direct vent installation is more specialized than standard atmospheric venting.
Tank-style efficiency is lower than many tankless alternatives.
Requires professional installation for safe venting and gas connection.

Overall value for money is strong if you need a reliable vented tank heater and do not want the higher upfront cost of a tankless unit. Compared with atmospheric vent models, this unit offers better installation flexibility. Compared with power vent alternatives, it may be simpler in some layouts, though less adaptable in long vent runs.

Customer Reviews and Real-World Feedback

Owners commonly rate this type of direct vent gas water heater around 4.3 out of 5 stars for dependable performance, straightforward operation, and useful capacity. Many buyers praise the steady hot water supply and the convenience of sealed combustion for indoor installation.

Praise: “It keeps up with showers and laundry without running out too quickly.”
Praise: “The direct vent setup made installation possible in a tight mechanical room.”
Complaint: “Professional installation added more to the total cost than expected.”
Complaint: “Like most tank heaters, it can recover slower during heavy back-to-back usage.”

Frequently mentioned issues include installation complexity, vent routing requirements, and the need for periodic maintenance. Buyers looking for a dependable mid-size gas water heater with cleaner combustion and solid everyday performance will likely find the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater a worthwhile purchase.

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Faqs

How do I set up state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater for first-time installation?

For first-time setup, confirm that the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater is installed as a direct vent model with combustion air taken from outside the building. Make sure the unit has the required gas connection, proper vent routing, and enough clearance around the heater. The tank should be filled completely before turning on gas or ignition. Because this model uses direct venting, it is best installed by a qualified technician who can verify vent size, termination, and local code compliance.

What venting and clearance requirements does state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater need?

The state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater uses a sealed direct vent system, so it must vent through an exterior wall or roof and draw combustion air from outside. This design helps reduce indoor air concerns and supports safer operation. Keep the vent path unobstructed and follow the manufacturer’s clearance rules for walls, ceilings, and nearby materials. Proper vent length, termination, and location are critical, so installation should match the approved manual and local building requirements.

Why is my state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater not producing hot water?

If the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater is not making hot water, start by checking that gas is on, the pilot is lit, and the unit has power if your setup requires it. Also confirm the temperature setting has not been lowered too far. Other common causes include a tripped safety device, blocked venting, or a gas supply issue. If the burner will not stay lit or the pilot keeps going out, shut the unit down and contact a licensed technician.

What does the piezo ignitor do on state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater?

The piezo ignitor on the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater is used to light the pilot quickly and without matches. It creates a spark when pressed, which makes startup easier during initial lighting or after a gas interruption. If the pilot does not ignite, check that the gas supply is open and that the pilot assembly is clean and dry. Repeated failures usually point to an ignition issue, gas supply problem, or a part that needs service.

Is state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater compatible with standard 3/4-inch water connections?

Yes, the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater uses standard 3/4-inch water connections, which makes it compatible with many residential plumbing setups. Before installation, verify that the existing pipes, shutoff valve, and relief valve connections are in good condition and sized correctly. It is also important to confirm that the gas line and venting system match the heater’s requirements. A plumber can help check fitment if you are replacing an older tank.

How efficient is state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater for a 50-gallon home?

The state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater is designed for efficient residential hot water delivery, with a 50-gallon nominal capacity and strong first-hour performance. That makes it a solid choice for households that need reliable hot water for showers, laundry, and dishes. To optimize efficiency, set the temperature only as high as needed, insulate hot water pipes, and reduce standby loss by keeping the unit in good condition. Routine maintenance helps preserve performance over time.

How often should I maintain state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater?

A good maintenance schedule for the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater includes a visual check every few months and a more complete inspection at least once a year. Look for leaks, corrosion, vent damage, and burner issues. Test the temperature and pressure relief valve as recommended by the manual, and flush sediment from the tank periodically if your water is hard. Annual professional service is a smart choice to catch venting, ignition, or combustion problems early.

What should I do if state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater shows noisy operation or sediment buildup?

Popping, rumbling, or knocking in the state water heaters GS6-50-UODT-L-100 Direct Vent Gas Water Heater often points to sediment buildup in the tank. Start by flushing the tank to remove loose mineral deposits, especially if your water supply is hard. Lowering the thermostat slightly can also reduce stress on the unit. If noise continues after flushing, the burner may need cleaning or there may be another internal issue. Persistent noise should be inspected by a qualified service professional.

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