The Suburban Advantage RV Tank Water Heater is a popular choice among RV owners who want reliable hot water on the road. If you’re looking to replace your water heater or need to know if this model will fit in your RV, understanding the exact dimensions is essential. Getting the right size means less hassle during installation and ensures you get the performance you expect. But dimensions are not just about width, height, and depth; you also need to consider the placement of connections, access panels, and clearances. In this guide, you’ll learn everything you need to know about the physical size, model variations, and practical installation tips for the Suburban Advantage RV Tank Water Heater.
Understanding Suburban Advantage Rv Tank Water Heaters
The Suburban Advantage series is known for its durability and efficient heating. These water heaters are designed specifically for recreational vehicles. Most models use a steel tank lined with porcelain for rust resistance, and many include an anode rod to extend the tank’s lifespan. Suburban offers both six-gallon and ten-gallon capacity heaters, with variations in power source (gas, electric, or both).
Why does size matter so much? RV spaces are tight, and water heaters are usually tucked inside small compartments. Even a half-inch difference can determine whether installation is possible. Besides, knowing the dimensions helps you plan for venting, plumbing, and electrical connections.
Exact Dimensions Of Suburban Advantage Rv Tank Water Heaters
The dimensions differ based on the tank capacity and whether the model is direct spark ignition (DSI), pilot ignition, or a combination gas/electric unit. Here are the most common sizes:
| Model/Capacity | Width | Height | Depth | Notes |
|---|---|---|---|---|
| 6-Gallon (Standard) | 12.62 in | 12.62 in | 19.19 in | Most common size |
| 10-Gallon (Standard) | 16.00 in | 15.75 in | 20.50 in | For larger RVs |
| 6-Gallon (Direct Spark Ignition) | 12.62 in | 12.62 in | 19.19 in | Same as standard |
| 10-Gallon (Gas/Electric Combo) | 16.00 in | 15.75 in | 20.50 in | Combo units |
These measurements are for the main body of the water heater, not including the exterior access door or mounting flange. The flange usually adds about 1/2 inch to the width and height. Always measure your compartment and compare with both the heater’s dimensions and the flange.
Special Note: Variations Between Models
While most Suburban Advantage water heaters follow these standard sizes, there are some special models with different dimensions, such as the SW6DE (gas/electric) or the SW10DE. Always check the model number on your existing unit or in your owner’s manual to confirm.
How To Measure Your Rv Water Heater Compartment
Before buying a new unit, you should measure the space available in your RV. Here’s how you can do it:
- Turn off all utilities: Make sure water, gas, and electricity are off.
- Open the water heater access panel: This is usually outside your RV.
- Remove the old heater (if replacing): This gives you the most accurate space measurement.
- Measure the width, height, and depth: Use a tape measure for each. Include room for the flange and for connections at the back.
- Check clearances: Leave at least 1/4 inch extra space on all sides for airflow and ease of installation.
Non-obvious tip: Don’t forget to check the depth clearance inside the RV. Sometimes, cabinets or plumbing behind the wall can limit how deep your new heater can be.
Comparing Suburban Advantage To Other Rv Water Heaters
You may wonder if Suburban’s dimensions are standard or if they differ from other brands. Let’s compare with another major brand, Atwood:
| Brand/Capacity | Width | Height | Depth |
|---|---|---|---|
| Suburban 6-Gallon | 12.62 in | 12.62 in | 19.19 in |
| Atwood 6-Gallon | 12.50 in | 12.50 in | 16.00 in |
| Suburban 10-Gallon | 16.00 in | 15.75 in | 20.50 in |
| Atwood 10-Gallon | 16.00 in | 15.50 in | 18.00 in |
As you can see, Atwood water heaters are often a bit shallower (less depth) than Suburban models. This means switching brands can require extra work, such as adjusting the compartment or adding trim.
Key Factors To Consider Beyond Dimensions
It’s not just about fitting the box. When choosing or replacing a Suburban Advantage RV Tank Water Heater, pay attention to:
- Connection locations: Gas lines, electrical wiring, and water pipes may be in different positions.
- Access panel size: The exterior door must match your cutout.
- Mounting flange: Some RVs use a recessed or flush mount, which can affect fit.
- Ventilation and airflow: These heaters need space for safe operation.
- Weight: The 6-gallon models weigh around 33 lbs empty, while the 10-gallon models can weigh over 45 lbs.
Real-world Example
Suppose your old heater is an Atwood 6-gallon model. You want to upgrade to a Suburban. The Suburban is about 3 inches deeper. If your compartment is shallow, you might have to modify the interior wall or reroute plumbing.
Installation Tips For Suburban Advantage Water Heaters
Installing a new water heater can be a DIY project, but only if you’re comfortable working with gas and electrical systems. If not, hire a professional. Here are some tips to ensure the right fit:
- Dry fit the unit: Place the heater in the compartment without connections first.
- Check door alignment: The exterior access door should close easily and seal tightly.
- Secure the flange: Use the correct screws and sealant to prevent leaks.
- Connect plumbing and wires: Double-check the manual for your model.
- Test for leaks: Run both water and gas and look for any drips or smells.
Pro tip: Always replace the anode rod when installing a new tank. This simple step extends the life of your heater.
Maintenance And Its Impact On Sizing
A well-maintained water heater will last longer and operate more efficiently. Maintenance can also affect sizing—if you neglect flushing the tank or replacing the anode rod, mineral buildup can reduce the effective capacity of your tank.
Some RVers miss this: If you upgrade to a larger tank for more hot water but have limited water pressure or a small RV pump, you might not get the full benefit. Make sure your water system supports the tank size you choose.
Where To Find Official Dimensions And Documentation
For the most accurate and up-to-date information, always check the manufacturer’s documentation. Suburban’s official manuals are available on their website and through many RV parts dealers. You can also find reliable reference information at RV Repair Club, which covers various RV water heater types and installation advice.
Most Common Mistakes When Choosing A Replacement
- Ignoring the mounting flange: Some buyers measure only the tank body, not the total footprint with the flange.
- Not checking access door fit: Even if the heater fits, the door may not cover the opening.
- Wrong connection positions: Water, gas, or electric lines may need rerouting.
- Assuming all 6-gallon or 10-gallon models are the same size: Variations exist even within the same brand.
- Overlooking depth limitations: Cabinets, pipes, or wiring may block a deeper tank.
Quick Reference: Suburban Advantage Rv Water Heater Dimensions By Model
To help you compare models quickly, here’s a summary of popular Suburban Advantage heaters:
| Model | Capacity | Width | Height | Depth | Weight (Empty) |
|---|---|---|---|---|---|
| SW6P | 6 gal | 12.62 in | 12.62 in | 19.19 in | 33 lbs |
| SW6DE | 6 gal | 12.62 in | 12.62 in | 19.19 in | 34 lbs |
| SW10P | 10 gal | 16.00 in | 15.75 in | 20.50 in | 45 lbs |
| SW10DE | 10 gal | 16.00 in | 15.75 in | 20.50 in | 46 lbs |
Remember, always verify the model number before ordering a replacement.
Frequently Asked Questions
What Are The Main Dimensions Of A Standard Suburban Advantage 6-gallon Rv Water Heater?
The standard 6-gallon model measures 12.62 inches wide, 12.62 inches high, and 19.19 inches deep. Always account for the mounting flange and access door when measuring your compartment.
Are Suburban Advantage Water Heaters Interchangeable With Other Brands?
Not always. While the width and height may be similar, Suburban models are usually deeper than Atwood or Dometic units. Switching brands may require modification to your RV’s compartment or exterior wall.
Can I Install A Larger (10-gallon) Heater If My Rv Has A 6-gallon One?
It depends on your compartment size. The 10-gallon models are wider, taller, and deeper. Measure your available space carefully and check for extra clearance behind the wall before attempting an upgrade.
How Much Clearance Do I Need Around The Water Heater?
Leave at least 1/4 inch of space on all sides for airflow and safe installation. Also, make sure there is enough depth for plumbing and electrical connections.
Where Can I Find The Exact Dimensions For My Suburban Advantage Model?
Always check the owner’s manual or the Suburban Manufacturing website. For installation help and details on different models, visit sites like RV Repair Club.
A little extra time spent measuring and checking model numbers will save you headaches later. The right fit means reliable hot water and a stress-free RV experience. Whether you’re replacing an old unit or upgrading for more capacity, knowing the exact dimensions of the Suburban Advantage RV Tank Water Heater is the key to a successful installation.
Safe travels and enjoy your hot showers on the road!
