Monument Box/Ring Immersion Heater Spanner

Monument Box/Ring Immersion Heater Spanner

The Monument Box/Ring Immersion Heater Spanner is a professional-grade tool engineered for the removal and installation of tight immersion heater elements. Crafted from malleable cast iron, this one-piece spanner is built to endure the toughest tasks — including being struck with a hammer when extra force is needed.

With an 86mm (3.3/8in A/F) octagonal head, it offers a secure fit on most standard immersion heater elements. The clever design features a 22mm clearance around the spanner, allowing easy access even when working around bulky insulating jackets. This makes it a go-to choice for both professional plumbers and maintenance engineers.

Key Features and Benefits

• Octagonal Head for Secure Fit: The spanner’s 86mm across-flat (A/F) design grips tightly to most immersion heater elements for safe removal or installation.
• One-Piece Malleable Casting: Constructed from solid cast iron to withstand impact — can be struck with a hammer for added force.
• High Clearance Profile: Provides 22mm clearance around the spanner, ideal when working with insulated tanks or jackets.
• Ideal for Tight Installations: Designed specifically for really tight immersion heaters where standard spanners might fail.
• Heavy-Duty Performance: Built to handle extreme torque without warping or breaking.
• Professional Tool: Trusted by engineers and plumbers for reliability and long-term performance.

Technical Specifications

Dimensions

Common Applications

• Removing and fitting immersion heater elements in hot water cylinders
• Maintenance and repair of domestic and commercial water heaters
• Ideal for installations involving insulated hot water tanks
• Use in plumbing, HVAC, and facilities management

Frequently Asked Questions (FAQs)

Q: What size heater elements does this spanner fit?
A: It fits most standard immersion heater elements with a 3.3/8in (86mm A/F) octagonal size.

Q: Can this tool be hit with a hammer?
A: Yes. The one-piece malleable casting is specifically designed to be struck when more torque is needed.

Q: Is it suitable for use on modern insulated tanks?
A: Absolutely. The 22mm clearance makes it easier to use on heaters with insulating jackets.

Q: What material is it made of?
A: It’s made from a single cast of malleable iron, providing durability and strength for heavy-duty tasks.

Q: Is this suitable for DIY users?
A: Yes, but it’s primarily designed for professional-grade performance. DIY users should use caution when striking.

Warranty Information

The Monument Box/Ring Immersion Heater Spanner is backed by a 12-month manufacturer’s warranty, ensuring confidence and reliability.

• Warranty Period: 12 months from date of purchase
• Covers: Manufacturing defects or material failures during normal use
• Does Not Cover: Accidental damage, misuse, or excessive wear caused by improper operation

For warranty claims, retain your proof of purchase and contact your point of sale or Monument Tools directly.