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110 Gallon Double Wall Oil Tank, UL Listed
Model: RTH335103401
Superseded To:



ROTH EcoDWT plus 3 400L - 110 Gallon, UL Listed.


  • Unique double-walled Construction
    • Our uniquely designed oil tanks are the safest and most reliable on the market. The outer tank is made of leak-proof, weld-free galvanized steel and rollseamed with an oil and fire-resistant seal. It can contain at least 110 percent of the capacity of the inner tank for maximum protection. The inner tank is made of blow-molded, high-density, seamless plyethlene that is leak proof and will never corrode. Roth tanks are easier and faster to fill tanks to their unique expansion system, all but eliminating the possibility of spills by home heating oil professionals. And, our compact tanks are available in several different sizes, providing more flexibility for placement in any home.
  • Built with safety and the enviornment in mind
    • Roth oil tanks exceed the industry standard safety regulations. They are rust resistant inside and out and are designed to prevent spills, leaks and fires caused by defective pipes, couplings or fittings located underneath the tank. In fact, it its the only tank on the market with no fittings below the oil line. Each tank undergoes through testing, including ultrasound and pressure testing, to ensure optimal thickness and sealing.
  • Roth Eco DWT PLUS 3 Features
    • Weld-free galvanized steel outer tank that can hold 110 percent of the primary tank
    • Seamless high-density polyethylene inner tank
    • Highly visible optical leak alarm
    • Up to 50 percent lighter than a 12-gauge steel tank with larger storage capacity
    • Non-corrosive steel filling system that provides an even level in each tank when installed in groups
    • Burner feeding system with a Duplex bushing installed directly into the opening- Availablewith 3/8" or 1/2" compression fittings for copper tubing. Fittings can be removed for a threaded opening of either 3/8" or 1/2". NPT on top and bottom for black iron pipe oil lines.
    • Cover for outside use


  • Leak-proof and will not corrode
  • Outer tank holds 110 percent of inner tank for maximum protection
  • Up to 50 percent lighter than conventional steel tanks
  • Can use for heating oil, diesel and bio fuels
  • Compact economical design
  • Provides maximum storage safety with minimum space requirements
  • Removable base facilitates access to tight spaces and greater stability
  • Wide handles on each end allow you to transport and handle with ease
  • Unique expansion system ensures increased storage capacity and faster, easier fill-ups
  • Quality control and testing exceeds industry standards


30 year Warranty.

Product Specification

Nom. Capacity US Gal (Liters) 110 (400)
Length inches (cm) 29 (74)
Shipping Weight lbs. (kg) 115 (52)
Width Inches (cm) 28 (72)
Height Inches (cm) 44 (112)
Min. Height Required Inches (cm) 49 (125)
Tank Weight 106 (48)

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