By MAURIPRO Sailing Specialists · Updated June 2026
What Is the Quick FVSLRSB12110A00 Heating Element?
The Quick FVSLRSB12110A00 is a marine-grade immersion heating element manufactured by Quick, an Italian brand specializing in onboard electrical and plumbing systems. The element operates at 110V AC and delivers 1,200 watts of heating power, making it compatible with North American shore power standards. It is engineered as a factory-spec replacement for Quick's B3 series water heaters and Sigmar water heaters that share the same tank interface.
The element uses a threaded flange connection that mates directly with the existing boss on the heater tank. No adapters or modification are required. The 1200W output is sized to heat the typical 6- to 11-liter capacity found in compact marine water heaters efficiently, bringing water to usable temperature within a reasonable dockside timeframe without overloading a standard 15A marina pedestal circuit.
Why Heating Elements Fail on Marine Water Heaters
Marine water heater elements are exposed to constant thermal cycling, mineralized water, and the vibration environment of a working sailboat. The most common failure mode is limescale buildup on the element sheath, which insulates the element from the water and causes it to overheat internally, burning out the resistance wire. Corrosion at the electrical terminals — accelerated by the humid bilge environment — is the second most common cause of element failure. When either occurs, the element must be replaced rather than repaired.
How to Confirm You Need a Replacement Heating Element
Before ordering the FVSLRSB12110A00, confirm the element — not the thermostat or wiring — is the failed component. Disconnect shore power completely before performing any checks. Use a multimeter set to resistance (ohms) and probe the two element terminals. A functional 1200W / 110V element should measure approximately 10 ohms of resistance (derived from R = V²/P = 110²/1200). A reading of infinite resistance (open circuit) confirms a burned-out element. A reading of zero ohms (short circuit) indicates a shorted element that can trip breakers.
If the element measures correctly but water still doesn't heat, move to the thermostat. Most Quick and Sigmar water heaters use a capillary-type thermostat that can be tested by bypassing it temporarily. If bypassing the thermostat restores heating, replace the thermostat separately. If the element reads open or shorted, the Quick Heating Element for B3 & Sigmar Water Heaters - 110V - 1200W (FVSLRSB12110A00) is the correct fix.
Compatibility: Which Heaters Accept This Element?
The FVSLRSB12110A00 is designed for Quick B3 series and Sigmar marine water heaters that use a 110V / 1200W element specification. Before purchasing, verify your heater's voltage requirement (110V vs. 220V) and wattage rating on the data plate attached to the tank. Installing a mismatched wattage element can damage the thermostat or trip circuit breakers.
| Heater Model / Series | Voltage / Wattage | Compatible with FVSLRSB12110A00? |
|---|---|---|
| Quick B3 Series (110V spec) | 110V / 1200W | Yes — direct replacement |
| Sigmar Water Heater (110V spec) | 110V / 1200W | Yes — direct replacement |
| Quick B3 Series (220V spec) | 220V / 1200W | No — requires 220V element |
| Other brands (Isotemp, Webasto) | Varies | Not confirmed — verify thread spec |
Step-by-Step: How to Replace the Quick Heating Element
Element replacement on a Quick B3 or Sigmar heater is a straightforward task that most sailors can complete dockside with basic tools. Shut off shore power at the breaker panel and allow the tank to cool completely before starting. Depressurize the water system by opening a hot tap until flow stops.
- Step 1 — Disconnect wiring: Remove the access cover on the heater and photograph the existing wiring connections before disconnecting. Label the wires if needed.
- Step 2 — Drain the tank: Attach a hose to the tank drain valve and route it to the bilge or a bucket. Open the valve fully and allow the tank to drain completely.
- Step 3 — Remove the old element: Use the appropriate element wrench or large adjustable wrench to unthread the element from the tank boss. Turn counter-clockwise. Have a rag ready — residual water will drain from the opening.
- Step 4 — Inspect and prepare: Clean the tank boss threads and inspect for corrosion or damage. Apply PTFE thread tape (two to three wraps) to the threads of the new element.
- Step 5 — Install the FVSLRSB12110A00: Thread the new element in by hand, then torque snugly with a wrench. Do not overtighten — the tank boss on marine water heaters is typically brass or aluminum.
- Step 6 — Reconnect and test: Reconnect wiring per your photograph, close the drain valve, and refill the tank. Restore shore power and confirm the heater reaches temperature within the normal cycle time.
Never energize the element with the tank empty or partially filled — dry firing will burn out the element immediately, regardless of its condition.
Why Order the Quick FVSLRSB12110A00 from MAURIPRO?
MAURIPRO stocks the Quick Heating Element for B3 & Sigmar Water Heaters - 110V - 1200W (FVSLRSB12110A00) as part of a comprehensive Quick brand plumbing inventory, ensuring you receive a genuine OEM component — not a generic substitute with uncertain thermal ratings or thread tolerances. Generic elements sourced from non-marine suppliers frequently use lower-grade sheathing materials that corrode faster in the mineral-rich water environments common on boats.
Replacing a failed element rather than the entire water heater assembly saves hundreds of dollars and gets hot water running again within hours of receiving the part. For sailors spending time at a marina on shore power, restoring a Quick or Sigmar water heater with the correct OEM element is the fastest, most reliable path back to a fully functional galley and head.
Frequently Asked Questions
Is the Quick FVSLRSB12110A00 heating element compatible with both B3 and Sigmar marine water heaters?
The Quick FVSLRSB12110A00 heating element is factory-designed to fit both Quick B3 and Sigmar marine water heater models, operating at 110V AC and rated at 1200W. This cross-compatibility makes it a reliable replacement choice for sailors with either system aboard. MAURIPRO stocks this element as a direct OEM-style replacement, eliminating guesswork when sourcing a spare.
What electrical supply does the Quick FVSLRSB12110A00 heating element require for safe operation?
The Quick FVSLRSB12110A00 requires a 110V AC shore power or inverter supply, drawing at its 1200W rated load approximately 10.9 amps at full output. Ensuring your vessel's shore power circuit is protected by at least a 15-amp GFCI breaker is essential before installation. Using an undersized circuit risks tripped breakers or damage to the element itself.
How do I know when it's time to replace the heating element in my Quick B3 or Sigmar water heater?
A failed or degrading heating element in a Quick B3 or Sigmar water heater typically presents as water that warms slowly, fails to reach normal temperature, or stays completely cold despite shore power being connected. Testing continuity across the element terminals with a multimeter will confirm an open circuit if the element has burned out. Replacing it with the Quick FVSLRSB12110A00, rated at 1200W and 110V, restores factory heating performance.
Can the Quick FVSLRSB12110A00 heating element be replaced by a non-professional sailor during a DIY repair?
The Quick FVSLRSB12110A00 heating element is designed as a serviceable replacement part that a mechanically capable sailor can install by draining the tank, disconnecting shore power, and unthreading the existing element using a deep element wrench. Proper sealing with thread tape or a new gasket is critical to prevent leaks after reinstallation. Always confirm shore power is fully isolated before handling any 110V wiring inside the heater housing.
What is the wattage and voltage rating of the Quick FVSLRSB12110A00, and how does it compare to 220V versions?
The Quick FVSLRSB12110A00 is rated at 1200W and 110V AC, making it specifically suited for North American shore power standards and compatible 110V inverter setups. Quick also offers 220V variants for European marina infrastructure, and the two are not interchangeable — installing the wrong voltage element risks immediate burnout or a fire hazard. Always verify your vessel's onboard AC voltage standard before ordering a replacement element through MAURIPRO.
Questions? We're Here to Help
Have questions? Chat with us! Our MAURIPRO rigging and sailing specialists are available to help you find the right solution for your boat and sailing style.
Explore our selection: Quick Heating Element for B3 & Sigmar Water Heaters - 110V - 1200W (FVSLRSB12110A00) and related sailing gear at MAURIPRO.
