Expanse – CBE Duo Under Floor Water Heater

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Product Description

Expanse CBE Duo Underfloor Water Heater – Reliable Hot Water & Space-Saving Heating

Overview

The Expanse CBE Duo Underfloor Water Heater is a high-performance dual-energy heating solution, designed for boats, caravans, motorhomes, and compact living spaces. Combining gas and electric power options, this system delivers consistent hot water and underfloor heating while conserving floor space. Ideal for UK marine, caravan, and RV applications, the CBE Duo ensures comfort, efficiency, and safety.

Key Features & Benefits

  • Dual-Energy Operation: Works on gas and electric power, perfect for off-grid adventures and on-grid convenience.
  • Underfloor Heating & Hot Water: Provides efficient heat distribution and instant hot water for small spaces.
  • Compact Design: Space-saving underfloor installation allows for maximum usable living space.
  • Energy-Efficient: Minimises gas and electricity consumption while delivering fast, reliable heating.
  • Durable Construction: Built for marine and mobile applications with high-quality materials.
  • Easy Installation: Complete kit designed for straightforward underfloor mounting.
  • UK Compliant: Meets relevant UK marine and caravan safety standards, giving peace of mind.

Why Choose Expanse CBE Duo?

The Expanse CBE Duo Underfloor Water Heater is perfect for UK customers seeking a versatile and efficient heating solution. Whether for boats, caravans, motorhomes, or tiny homes, this system provides consistent hot water, underfloor warmth, and energy savings. Trusted for durability and performance, it’s a reliable choice for off-grid living and mobile applications.

Product Name: Expanse – CBE Duo Underfloor Water Heater

Product Type: Dual-Power Underfloor Water Heater

Function:

  • Provides hot water for underfloor heating systems and small potable water circuits in mobile applications
  • Dual-power operation allows use of LPG gas or electric heating depending on availability
  • Designed for underfloor installation to save space in caravans, motorhomes, boats, or compact off-grid dwellings

Key Features:

  • Dual-power heating:
    • Gas burner for LPG operation
    • Electric heating element for 230V AC operation
  • Thermostatically controlled for precise water temperature regulation
  • Compact underfloor design suitable for installation in tight spaces
  • Durable construction for mobile, marine, and off-grid environments
  • Integrated safety features for gas and electric operation
  • Compatible with standard 1/2” or 3/4” water connections
  • Suitable for combination with Expanse underfloor heating circuits

Gas Specifications:

  • Fuel Type: LPG / Propane
  • Gas Pressure: Standard mobile system pressure (typically 30 mbar)
  • Gas Safety: Flame failure device and over-temperature protection
  • Typical Gas Consumption: [Insert approximate consumption, e.g., 200–300 g/h]

Electric Specifications:

  • Voltage: 230V AC mains
  • Power Rating: [Insert value, typically 500–800W]
  • Low-voltage control for thermostat and safety circuits

Water Specifications:

  • Tank Capacity: [Insert litres, e.g., 6–10L]
  • Maximum Output Temperature: Adjustable via thermostat
  • Flow Rate: [Insert typical rate, e.g., 5–7 litres/min]
  • Water Connections: 1/2” or 3/4” barbed fittings

Safety Features:

  • Flame failure protection for gas operation
  • Over-temperature protection for water and heater
  • Electrical protection for the heating element
  • Ventilation and flue requirements for safe exhaust
  • CE and mobile appliance compliant

Construction & Environmental Specifications:

  • Corrosion-resistant materials suitable for marine and mobile use
  • Compact, lightweight design for underfloor mounting
  • Operating Temperature: –20°C to +50°C
  • Vibration and shock-resistant for mobile applications

Installation Requirements:

  • Must be installed by qualified personnel for gas and electrical connections
  • Adequate ventilation and correct flue installation required
  • Electrical installation must meet 230V AC safety regulations
  • Water connections must comply with system pressure and flow guidelines

Applications:

  • Underfloor heating systems in caravans, motorhomes, and boats
  • Potable water heating for showers, sinks, and small appliances
  • Off-grid or mobile systems requiring dual-power flexibility

Compliance:

  • CE certified
  • Complies with EN 60335-2-102 for mobile water heaters
  • Meets relevant LPG and electrical safety standards

Kit Contents:

  • Expanse – CBE Duo Water Heater unit
  • Gas burner and electric heating element
  • Thermostat and control electronics
  • Flue and mounting hardware
  • Installation and user manuals

Dimensions (approx.):

  • Height: [Insert dimension]
  • Width: [Insert dimension]
  • Depth: [Insert dimension]

Weight: ~[Insert weight]

Warranty: Manufacturer warranty applies; check with local supplier for details

  • At Prime Caravan Breakers we are committed to providing excellent Customer Service by sending orders as quickly as possible. Our stock levels are live and shown against each product.
  • We use Trans Direct Shipping to provide our Customers with the most cost effective and suitable Courier service depending on their location.
  • All orders are picked and packed in our Somerton Warehouse. We endeavour to use your nominated Courier but sometimes issues are beyond our control. If Courier pick up is going to be delayed or an item doesn’t get picked up, we will use our discretion and sometimes use UK Post and other methods to ensure your order reaches you quickly. 
  • Please ensure you enter the Correct Address. Should your parcel be returned to Prime Caravan Breakers the customer will be liable for any costs to resend.
  • If you are  local we offer pick up from our Somerton, Victoria factory. Over counter sales are welcomed from our fully stocked shop.
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Based on 16 Reviews
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