Many RV owners dream of enjoying hot showers and warm water wherever they go. But one question often comes up: What size Suburban Advantage RV tank water heater do I need? Choosing the right size is not as simple as picking the biggest one. It depends on your travel style, the number of people in your RV, and how you use hot water daily. If you pick too small, you’ll run out of hot water fast. If you pick too big, you waste money, space, and energy. Let’s explore how to find the best fit for your RV lifestyle, so you can enjoy comfort without regrets.
Understanding Suburban Advantage Rv Tank Water Heaters
The Suburban Advantage series is known for durable build quality and reliable performance. These water heaters come in different tank sizes, ranging from 6 gallons to 16 gallons. Most models use both propane gas and electricity for heating, which is great for flexibility. They are also designed for easy installation in many RV types, from small campers to large motorhomes.
The tank water heater works by heating water inside a metal tank. The hot water is stored and ready to use for showers, washing dishes, or cleaning. When the tank empties, it refills with cold water and starts heating again.
Unlike tankless heaters, tank models deliver hot water instantly but can run out if used too quickly.
Common Sizes Of Suburban Advantage Rv Tank Water Heaters
When shopping, you’ll find three main sizes:
| Tank Size | Capacity (Gallons) | Typical Uses | RV Type |
|---|---|---|---|
| Small | 6 | Quick washes, single person | Compact trailers, Class B |
| Medium | 10 | Showers, 2-3 people | Travel trailers, Class C |
| Large | 12-16 | Multiple showers, family use | Fifth wheels, Class A |
The most popular sizes are 6, 10, and 12 gallons. Some premium RVs use 16-gallon tanks, but these are rare because of space and weight.
How To Choose The Right Size For Your Rv
Selecting the right size depends on several factors. Think about these before buying:
Number Of People In Your Rv
More people means more hot water needs. Here’s a quick guide:
- 1-2 people: A 6-gallon tank is often enough for basic needs.
- 2-4 people: A 10-gallon tank gives more flexibility.
- 5+ people: You’ll want 12 gallons or more for comfort.
Usage Patterns
Ask yourself how often you use hot water. Do you like long showers? Do you wash dishes after every meal? If you use hot water for multiple tasks at once, a bigger tank prevents sudden cold surprises.
Rv Size And Available Space
Large tanks take up more room and add weight. Make sure your RV has space for the heater and that it won’t cause issues with balance or storage. Measure carefully before buying.
Climate And Travel Locations
If you travel in cold climates, you’ll use more hot water and the heater will work harder. A larger tank helps prevent running out, but insulation is also important.
Water Heater Recovery Rate
The recovery rate is how fast the heater can warm new water after the hot water is used. Suburban water heaters typically recover 10-15 gallons per hour (gas mode). Electric mode is slower, about 6-8 gallons per hour.
Non-obvious insight: Many beginners focus only on tank size, forgetting recovery rate. If you use hot water often, a faster recovery rate can be more valuable than a larger tank.
Comparing Suburban Advantage Models
Let’s look at how popular models stack up:
| Model | Tank Size | Dimensions (inches) | Recovery Rate (gas/electric) | Weight |
|---|---|---|---|---|
| SW6DE | 6 gallons | 12 x 16 x 16 | 12 / 8 gal/hr | 32 lbs |
| SW10DE | 10 gallons | 16 x 16 x 16 | 15 / 8 gal/hr | 36 lbs |
| SW12DE | 12 gallons | 16 x 16 x 20 | 15 / 8 gal/hr | 39 lbs |
| SW16DE | 16 gallons | 16 x 16 x 24 | 18 / 10 gal/hr | 44 lbs |
The SW6DE is compact and light, good for smaller RVs. The SW12DE and SW16DE offer more capacity, but you need extra space and stronger mounting.
Practical Examples And Scenarios
Let’s walk through real-life situations:
Small RV, solo traveler: You mostly wash hands and do quick dishes. A 6-gallon heater works well. You can take short showers, but will need to wait for recovery if you use a lot at once.
Couple in medium RV: You want to shower daily and sometimes run the sink and shower together. A 10-gallon tank is a safe choice. It gives enough for two fast showers or one longer shower.
Family of four, large RV: Everyone showers in the morning, and you wash dishes after every meal. Go for a 12-gallon tank. You’ll still need to pace usage, but you won’t run out quickly.
Heavy use, cold weather: If you travel to snowy places and use hot water for heating, a 16-gallon tank is best. However, check your RV specs, as not all RVs can fit this size.
Non-obvious insight: Many RVers don’t realize that mixing cold and hot water stretches the tank’s effective supply. For example, if you mix half cold and half hot, your 6-gallon tank gives about 12 gallons of warm water.
Mistakes To Avoid When Choosing A Water Heater Size
- Ignoring RV limitations: Some RVs can’t fit large tanks. Check your manual.
- Overestimating needs: Bigger isn’t always better. If you use little hot water, a large tank wastes energy.
- Forgetting weight: Water heaters add pounds. Too much weight affects fuel economy and handling.
- Overlooking recovery rate: If the heater is slow, a big tank doesn’t help during back-to-back showers.
- Assuming all water heaters are equal: Suburban Advantage models differ in energy use, controls, and maintenance. Pick the one that suits your RV, not just the size.
Energy Consumption And Efficiency
A larger tank uses more propane and electricity. For example, heating a 6-gallon tank uses about 7,500 BTUs per hour (gas mode), while a 12-gallon tank uses up to 12,000 BTUs per hour. If you boondock (camp without hookups), energy efficiency matters even more.
Smaller tanks heat faster and use less energy overall.
Tip: Using the electric heating mode when plugged in saves propane. But the recovery rate is slower, so plan for longer waits between showers.
Installation Considerations
Before buying, check your RV’s water heater compartment. Measure the available space and compare it to the heater’s dimensions. Make sure there’s room for plumbing and wiring. Also, consider venting needs—gas models require proper exhaust.
If you upgrade from a smaller to a larger tank, you may need to strengthen the mounting and reroute pipes. This can add costs and complexity.
Comparing Suburban Advantage To Other Brands
Suburban is respected for quality, but there are competitors like Atwood and Dometic. Suburban tanks are made from porcelain-lined steel, which helps prevent rust. Atwood uses aluminum tanks that are lighter but can be less durable.
Here’s a quick comparison:
| Brand | Tank Material | Popular Sizes | Weight | Recovery Rate |
|---|---|---|---|---|
| Suburban Advantage | Porcelain-lined steel | 6, 10, 12, 16 gal | 32-44 lbs | 10-18 gal/hr |
| Atwood | Aluminum | 6, 10 gal | 20-30 lbs | 8-11 gal/hr |
| Dometic | Steel | 6, 10 gal | 28-38 lbs | 10-12 gal/hr |
Suburban’s main advantage is durability and faster heating, which is helpful for families or frequent travelers.
Maintenance And Longevity
A bigger tank needs more care. Flush the tank regularly to prevent mineral buildup. Check the anode rod every season, as it protects the tank from corrosion. A well-maintained Suburban heater can last 10–15 years.
Tip: Replace the anode rod yearly if you use the heater often. It costs little but protects your investment.
Real-world Data: How Much Hot Water Is Enough?
According to RV forums and surveys, most users report:
- 6 gallons: Enough for one short shower or a few quick tasks
- 10 gallons: Enough for two showers or several dishwashing sessions
- 12 gallons: Comfortable for families, less waiting
- 16 gallons: Luxury, but rare and only for large RVs
On average, an adult uses 2–3 gallons for a short shower. Washing dishes after a meal uses about 1–2 gallons. If you have four people showering in the morning, a 12-gallon tank is the minimum for comfort.
Tips For Maximizing Hot Water In Your Rv
- Stagger showers: Wait 15–30 minutes between uses to allow recovery.
- Use low-flow showerheads: These save water and stretch your supply.
- Mix cold and hot: Don’t use pure hot water unless needed.
- Check thermostat settings: Lower settings save energy and prevent scalding.
- Flush tank regularly: This prevents buildup and keeps heating fast.
Frequently Asked Questions
How Do I Calculate My Rv Hot Water Needs?
Count the number of users and estimate daily tasks. Each shower uses about 2–3 gallons, washing dishes uses 1–2 gallons. Add up your total daily needs and choose a tank that fits, with some margin for comfort.
Can I Upgrade To A Larger Suburban Advantage Tank?
Yes, but check your RV’s space, weight limit, and venting. Upgrading may need new mounting brackets and plumbing. Always consult your RV manual or a professional installer.
What Is The Difference Between Gas And Electric Heating Modes?
Gas mode heats water faster and is good for off-grid camping. Electric mode is slower but saves propane if you have hookups. Most Suburban heaters offer both modes for flexibility.
Is A Tankless Water Heater Better For Rvs?
Tankless heaters give endless hot water, but require more power and are harder to install. For most RV owners, a tank heater is simpler and more reliable. Tankless is best for large RVs with strong power systems.
Where Can I Find Official Specifications For Suburban Advantage Water Heaters?
You can see detailed specs and guides on the manufacturer’s website. For reliable information, visit Suburban Water Heaters.
Choosing the right Suburban Advantage RV tank water heater size is about balancing comfort, energy use, and practical limits. Take time to review your travel habits, RV specs, and real-world needs. With the right size, you’ll enjoy hot water wherever your adventure leads.
