If you own an RV or plan to travel in one, hot water is more than a luxury—it’s a necessity for comfort and hygiene. The Suburban Advantage RV tank water heater is a popular choice for many RV enthusiasts. It’s reliable, efficient, and designed specifically for mobile living. But how hot does the water actually get? Is it safe for daily use? And what can you do to adjust or maintain the temperature for the best experience? Let’s dive deep into the temperature capabilities of the Suburban Advantage RV tank water heater, explore how it works, compare it to similar models, and answer the most common questions from RV owners.
Understanding The Suburban Advantage Rv Tank Water Heater
The Suburban Advantage is a line of water heaters made specifically for recreational vehicles. They are built to deliver hot water on demand while balancing energy efficiency and safety. These heaters come in various tank sizes, usually ranging from 6 to 16 gallons, and can be powered by propane (LP gas), electricity, or both (dual-mode models).
What sets the Suburban Advantage apart from some competitors is its porcelain-lined steel tank and replaceable anode rod. This design provides extra durability, reduces corrosion, and extends the unit’s lifespan.
Typical Operating Temperatures
One of the most important questions for RV owners is: What temperature does a Suburban Advantage RV tank water heater reach? The answer depends on the model, settings, and power source. However, most Suburban Advantage tank water heaters are factory-set to heat water to a temperature between 120°F and 140°F (49°C to 60°C).
Factory Preset Temperatures
Most models ship with a preset thermostat. For safety and comfort, the typical factory setting is 130°F (54°C). This is hot enough to kill bacteria but not so hot that it causes instant burns. However, the actual temperature range may vary slightly from one unit to another.
Maximum And Minimum Temperatures
- Maximum Temperature: Most Suburban Advantage models have a safety cut-off at around 140°F (60°C). This means the water will not exceed this temperature under normal operation.
- Minimum Temperature: When operating, the water heater will maintain at least 110°F (43°C), which is warm but not hot.
Here’s a quick look at common temperature settings:
| Setting | Temperature (°F) | Temperature (°C) |
|---|---|---|
| Minimum | 110 | 43 |
| Factory Preset | 130 | 54 |
| Maximum Safety Cut-off | 140 | 60 |
It’s important to note that water temperatures above 120°F can cause burns if exposed to the skin for a long time. Many RVers choose to install mixing valves or manually adjust the water heater for extra safety.
How The Suburban Advantage Heats Water
Suburban Advantage tank water heaters use a simple but effective heating process. Let’s break down the main steps:
- Cold water enters the tank from your RV’s fresh water supply.
- The thermostat senses water temperature inside the tank.
- When water drops below the set temperature, the heating element (electric or propane burner) turns on.
- The heater warms water until it reaches the preset temperature.
- The energy cut-off switch ensures water does not exceed safe levels (usually 140°F).
This cycle repeats every time you use hot water or cold water enters the tank.
Adjusting The Water Temperature
Some RV water heaters let you adjust the thermostat to change the water temperature. However, many Suburban Advantage models come with a fixed thermostat for safety reasons. If you want to adjust the temperature:
- Check your owner’s manual. Some models allow adjustments via a dial or switch on the unit.
- Do not attempt to bypass or remove safety features. Overheating can be dangerous and may void your warranty.
- Install a mixing valve. This device blends hot and cold water, letting you maintain a safe temperature at the tap, even if the tank is hotter.
Many RVers prefer to keep the heater at the factory setting for both safety and convenience.

Comparing Suburban Advantage With Other Rv Water Heaters
The Suburban Advantage is not the only tank-style RV water heater on the market. The Atwood (now Dometic) brand is another big name. How does the Suburban Advantage compare when it comes to water temperature and safety?
| Brand | Tank Material | Preset Temperature (°F) | Max Temp (°F) | Adjustable Thermostat |
|---|---|---|---|---|
| Suburban Advantage | Porcelain-lined Steel | 130 | 140 | Some Models |
| Atwood/Dometic | Aluminum | 120–130 | 140 | Some Models |
Both brands heat water to similar temperatures. However, the Suburban Advantage is well-known for its durable construction and better corrosion resistance due to the anode rod and steel tank.
Safety Features To Prevent Overheating
Hot water is great, but too much heat can be dangerous. Suburban Advantage water heaters include several safety features:
- High-limit switch: Cuts off power if the water temperature goes above the safety limit.
- Pressure and temperature relief valve: Releases water if pressure or temperature gets too high, preventing explosions.
- Fixed thermostat: Prevents accidental overheating.
One non-obvious insight is that the anode rod not only protects the tank from corrosion, but it also helps stabilize the water chemistry, reducing the risk of scale buildup at high temperatures. This feature is often overlooked by beginners.

Energy Source And Its Impact On Water Temperature
Suburban Advantage heaters can run on propane, electricity, or both. The energy source can affect how quickly water heats up, but not the maximum temperature:
- Propane: Heats water faster and is more powerful when you need a lot of hot water quickly.
- Electric: Slower to heat but convenient when plugged into shore power.
- Dual-mode: Lets you use both for faster recovery times.
No matter the energy source, the maximum water temperature is limited by the thermostat and safety switches.
Common Issues Affecting Water Temperature
Sometimes, your water heater may not deliver the expected temperature. Here are some common reasons:
- Sediment buildup: Over time, minerals can collect at the bottom of the tank, insulating the water from the heating element.
- Anode rod corrosion: If the anode rod is heavily corroded, it can affect heating efficiency.
- Thermostat malfunction: A faulty thermostat may cause water to be too hot or not hot enough.
- Electrical or propane issues: Problems with the power supply can limit heating.
Regular maintenance is key. Flushing the tank and replacing the anode rod every year can make a big difference.
Tips For Maximizing Comfort And Safety
To get the most from your Suburban Advantage water heater, keep these practical tips in mind:
- Test water temperature regularly at the tap with a kitchen thermometer.
- Install a mixing valve if children or elderly people use the RV.
- Flush the tank every few months to remove sediment.
- Replace the anode rod at least once a year or when heavily corroded.
- Check the relief valve periodically to make sure it’s working.
A less obvious tip: if you use the electric mode while also running high-wattage appliances (like the microwave or air conditioner), you might trip the RV’s circuit breaker. Plan your energy use to avoid interruptions.
Real-world Example: Heating Times And Performance
Let’s look at a real-world scenario. Suppose you have a 6-gallon Suburban Advantage heater running on propane. It typically takes about 20–30 minutes to heat the tank from cold (around 50°F) to the factory set temperature of 130°F. If you use the electric mode, it might take closer to 45–60 minutes.
Here’s a comparison of heating times by energy source:
| Tank Size | Energy Source | Time to 130°F (from 50°F) |
|---|---|---|
| 6 Gallon | Propane | 20–30 min |
| 6 Gallon | Electric | 45–60 min |
| 10 Gallon | Propane | 30–40 min |
| 10 Gallon | Electric | 60–75 min |
Keep in mind that drawing hot water for a shower or dishwashing will introduce cold water, causing the heater to cycle back on.
When To Seek Professional Help
If you notice water that is too hot, not hot enough, or if the relief valve leaks frequently, it’s best to consult a certified RV technician. Attempting repairs yourself may cause further issues or void your warranty.
External Resources
For those who want to dive deeper into the technical details and safety standards, the official Suburban Water Heater Information page offers manuals, troubleshooting guides, and more.

Frequently Asked Questions
What Is The Default Temperature Setting For A Suburban Advantage Rv Water Heater?
Most Suburban Advantage heaters are set at 130°F (54°C) from the factory. This setting balances safety, energy use, and comfort.
Can I Adjust The Temperature Myself?
Some Suburban Advantage models allow temperature adjustments via a thermostat dial, but many have fixed settings. Always check your owner’s manual before making changes.
Is The Water Hot Enough For Showers And Dishwashing?
Yes, the standard temperature (130°F) is more than enough for showers, washing dishes, and cleaning. For extra safety, consider using a mixing valve at the faucet.
What Should I Do If The Water Is Not Getting Hot?
Check for power issues, low propane levels, or sediment buildup in the tank. Also, inspect the thermostat and anode rod. If problems persist, contact a professional.
Is It Safe To Leave The Water Heater On All The Time?
It’s generally safe to leave the heater on, as it will cycle on and off to maintain temperature. However, turn it off when not using the RV for long periods to save energy and reduce wear.
Whether you’re new to RV living or a seasoned traveler, understanding your Suburban Advantage RV tank water heater’s temperature settings helps you stay comfortable and safe on the road. Regular maintenance and a little attention to detail can keep your hot water flowing reliably, making every trip that much more enjoyable.