MARSHALL EXCELSIOR MER426-20P Rv Thermo 815505012706

( Brand: Marshall Excelsior ), ( Manufacturer Part Number: MER426-20P ), ( Country Of Origin: United States ), ( UPC: 815505012706 )

Review MARSHALL EXCELSIOR Rv Thermo Pigtail

The Marshall Excelsior MER426-20P RV Thermo is a versatile and efficient RV water heater designed to provide hot water for your recreational vehicle. This model from Marshall Heater, a trusted name in the heating industry, is a 4.2 gallons per minute (GPM) unit, capable of delivering a steady supply of hot water to meet the demands of your RV.

The Marshall Excelsior MER426-20P RV Thermo features a unique, compact design that is both space-saving and stylish. Its rectangular shape fits neatly into most RV storage areas, and its powder-coated, rust-resistant exterior ensures durability and longevity. This heater is also equipped with a one-piece fiberglass tank, which is known for its strength and resistance to corrosion.

One of the standout features of this RV water heater is its advanced temperature control system. With adjustable temperature settings from 90 F to 140 F, you can easily customize the water temperature to your preference. The heater also includes a high-limit thermostat to ensure safety, and a bypass valve for easy winterization and maintenance.

The Marshall Excelsior MER426-20P RV Thermo is designed for both propane and electric power sources, providing flexibility and convenience for RVers. Its propane burner produces a consistent and efficient flame, while its electric element provides an additional heating option for those times when propane may not be available.

This RV water heater is also equipped with a quick recovery rate, allowing it to heat up water quickly after usage. Its insulation system helps maintain the temperature of the water, ensuring that you have a constant supply of hot water even during extended usage.

The Marshall Excelsior MER426-20P RV Thermo is easy to install, with clear instructions included in the package. Its 20-inch by 20-inch footprint and 15-inch overall height make it a convenient size for most RV installations. Additionally, it comes with a 6-foot vent kit, making the installation process even simpler.

In summary, the Marshall Excelsior MER426-20P RV Thermo is a high-performing, versatile, and efficient RV water heater. Its advanced temperature control system, compact design, and flexibility in power sources make it a top choice for RVers looking for a reliable and consistent hot water supply. With its durable construction and easy installation, this water heater is an excellent investment for any RV owner.

The Marshall Excelsior MER426-20P RV Thermo is a recreational vehicle (RV) water heater designed for use in mobile homes and trailers. This model is known for its durability, efficiency, and compact size. Here are some pros and cons to help you decide if this water heater is the right choice for your RV.

1. Compact Size: The Marshall Excelsior MER426-20P RV Thermo has a relatively small footprint, making it an excellent choice for RVers with limited space.

2. Durability: This water heater is made with a high-quality stainless steel tank that is resistant to corrosion and rust.

3. Efficiency: The unit has a high energy factor (EF) rating, which means it uses less energy to heat water compared to other models.

4. Temperature Control: The water heater comes with a thermostat that allows you to easily adjust the temperature of the water.

5. Venting Flexibility: The unit has a multi-directional venting system, which makes it easier to install in various RV configurations.

1. Cost: The Marshall Excelsior MER426-20P RV Thermo is more expensive than some other RV water heaters on the market.

2. Installation Complexity: While the unit is compact, its installation process can be more complex than some other models due to its venting requirements.

3. Weight: The unit weighs around 55 pounds, which can make it more difficult to transport for some RVers.

In conclusion, the Marshall Excelsior MER426-20P RV Thermo is a high-quality, efficient, and durable water heater option for RVers. Its compact size, temperature control, and venting flexibility make it an excellent choice for those with limited space and complex installation requirements. However, its higher cost, weight, and installation complexity may be drawbacks for some RVers.

Recommendation: If you are an RVer with limited space, a complex installation requirement, and a budget to spare, the Marshall Excelsior MER426-20P RV Thermo is a great choice. Its durability, efficiency, and temperature control make it an investment worth making. However, if you are looking for a more budget-friendly option or one that is easier to install, there are other RV water heater models on the market that may be a better fit for you.

Details:

Please see photos. It is conditioned as NEW OTHER because the original packaging may be dented.

part #: mer42620p prices

• $39.52-$45.99

specifications rvroutine:

• brand: Marshall Excelsior
• manufacturer part number: MER426-20P
• country of origin: United States
• upc: 815505012706

payments rvroutine:

• wallet: Paypal
• credit card: Discover
• other

offer rvroutine:

• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock
• best offers: True
• started: May 26, 2026

general rvroutine:

• Parts Accessories > RV, Trailer Camper Parts Accessories > Other RV, Trailer Camper Parts Accessories
• condition: New other see details

returns rvroutine:

• policy: Returns Accepted
• time: 60 Days
• paid by: Seller

seller rvroutine:

• city: Powder Springs, Georgia
• # reviews: 13304
• rating: 99.7%

shipping rvroutine:

• transit: 4-8 Days
• class: Standard
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery
• type: Calculated
• carrier: USPS, FedEx
• cost: $11.35

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