WHALE Expanse PCB Gas & Electric
239.00£ Original price was: 239.00£.218.00£Current price is: 218.00£.
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Product Description
WHALE Expanse PCB Gas & Electric – Reliable Control Board for Marine & Caravan Heaters
Overview
The WHALE Expanse PCB Gas & Electric is a high-quality replacement control board designed for dual-fuel heaters in boats, caravans, and motorhomes. This PCB manages both gas and electric heating systems, ensuring efficient, safe, and reliable operation. Ideal for UK marine and mobile applications, it guarantees consistent water and space heating while maintaining compliance with UK safety standards.
Key Features & Benefits
- Dual-Fuel Control: Operates gas and electric heaters, providing flexible and energy-efficient heating.
- Reliable Performance: Ensures stable operation of space and water heaters for marine, caravan, and motorhome use.
- Durable Construction: Built to withstand vibration, humidity, and mobile environments, ensuring long-lasting service.
- Easy Replacement: Compatible with WHALE Expanse heater models, allowing quick installation and minimal downtime.
- Energy Efficient: Optimises gas and electricity usage, reducing running costs while maintaining consistent heat output.
- Safety Compliant: Meets UK marine, caravan, and motorhome safety standards for secure operation.
- Compact Design: Fits neatly inside your heater unit without occupying excessive space.
Why Choose WHALE Expanse PCB Gas & Electric?
The WHALE Expanse PCB Gas & Electric is the ideal replacement for UK customers seeking a durable, energy-efficient, and reliable heater control board. Perfect for boats, caravans, and motorhomes, it ensures consistent hot water, optimal space heating, and safe operation, making it a trusted component for off-grid and mobile heating systems.
Product Specification
Product Name: Whale Expanse PCB – Gas & Electric
Product Type: Main Control PCB for Gas and Electric Water Heating Systems
Function:
- Acts as the central control unit for Whale Expanse water heaters and underfloor heating systems
- Manages and coordinates dual-power operation: LPG/Propane gas and electric heating elements
- Controls ignition, flame monitoring, electric heating, pumps, and safety systems
- Interfaces with user control panels, thermostats, and sensors for precise water and space heating
Key Features:
- Dual-power control: gas burner and electric heating element management
- Supports ignition, flame detection, and automatic gas shut-off
- Thermostat and sensor integration for water temperature and safety monitoring
- Diagnostic outputs and LED indicators for fault detection
- Compact PCB design for easy installation and replacement
- Compatible with Whale Expanse water heaters and underfloor heating units
Gas Control Specifications:
- Fuel Type: LPG / Propane
- Gas Safety: Flame failure detection via thermocouple
- Gas Pressure Control: Works with standard mobile system pressures (typically 30 mbar)
- Automatic shut-off in case of flame loss or system fault
Electric Control Specifications:
- Voltage: 230V AC for electric heating element control
- DC Supply: 12V DC for PCB control circuits and ignition
- Power Handling: Depends on connected electric heating element (e.g., 500–800W typical)
- Controls pumps and fan circuits if integrated with water or space heating
Safety Features:
- Flame failure protection for gas operation
- Over-temperature cut-out for water or space heating
- Low water level detection and shutdown if integrated with system
- Short-circuit and overcurrent protection
- CE-certified and compliant with mobile appliance safety standards
Construction & Environmental Specifications:
- PCB Substrate: Flame-retardant FR4 or equivalent
- Components: Automotive/marine-grade for reliability in mobile applications
- Vibration and shock resistant for caravan, motorhome, and marine use
- Operating Temperature: –20°C to +70°C ambient
- Conformal coating optional for moisture and corrosion protection
Installation Requirements:
- Must be installed by a qualified technician familiar with LPG and electric water heating systems
- Connections: Plug-and-play wiring harness to gas valves, ignition, heating elements, pumps, and control panels
- Ensure correct positioning inside heater enclosure away from direct heat sources
- Follow manufacturer wiring diagrams and safety guidelines
Applications:
- Whale Expanse underfloor heating systems
- Whale Expanse water heaters with gas, electric, or combined operation
- Replacement or service part for mobile and marine water heating systems
Compliance:
- CE certified
- EN 60335-2-102 for mobile and caravan heating appliances
- Meets relevant LPG and electrical safety standards
Dimensions (approx.):
- Height: [Insert dimension]
- Width: [Insert dimension]
- Depth: [Insert dimension]
Weight: ~[Insert weight]
Warranty: Manufacturer warranty applies; check supplier for details
Delivery and Shipping
- 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.Â
- 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.
Customer Reviews
Ordered A 200W Solar Panel Kit
Ordered a 200w solar panel kit. The price was unbeatable. The wiring kit included was high quality and the installation guide was very clear. It has transformed our off-grid capabilities. Highly recommended.
Ordering Furnishings and Cupboard Handles
We fully refurbished our interior using their range of soft furnishings and cupboard handles. The quality of the products rivaled high-end motorhomes. Excellent value for money.
Hitch Locks and Wheel Clamps
Don't buy your hitch locks and wheel clamps anywhere else. The quality is second to none. I feel so much safer leaving my van now. Plus, their guide on 'How to fit' is very helpful.
Full Awning Set
Purchased the large inflatable awning. It is an investment, but the quality is outstanding. Delivery was tracked and arrived when promised. The instructions were clear and I had it up in 30 minutes. Thank you!
Caravan Light
Great selection of LED lighting and internal fittings. The website is so easy to navigate, I found the replacement vent covers I needed in seconds. My van looks brand new inside now!
Caravan Battery and Charger Unit
I was struggling to find a specific battery charger. Someone on a forum suggested these guys. They had it in stock. Great price and works like a dream. I’m a customer for life.
Purchasing Caravan Door Lock
The replacement door lock fitted perfectly. It is a high-security version that gives me peace of mind. Quality product and fast delivery.
Porch Awning
We bought a new porch awning from here and it is superb. The material is heavy-duty and feels like it will last for years. They even included some extra pegs. A brilliant company to deal with.
A Gas Bottle and Regulator
Needed a new gas regulator quickly before a trip. This site had the exact one. It came next day. What more could you ask for? Highly professional.
Van/Truck Delivering A Package
Ordered a new water pump and filter on Monday, arrived Tuesday. That’s what I call service. You can tell they actually use this gear themselves because their advice is practical and down to earth.
Towbar and Hitch Lock
As a full-timer, I rely heavily on my gear. This site is a lifesaver. Their parts finder tool is genius, and the security locks I bought are top-notch. Fast shipping to rural Scotland too! 10/10.
Complete Water and Waste Kit
The complete water and waste kit was a great deal. It came with everything we needed for a long trip. The delivery was incredibly fast. It really made our holiday stress-free.
A Roof Light
Needed a new skylight for my Swift. Found it here cheaper than the manufacturer's site. Delivered in 48 hours. No drama, just brilliant service. Highly recommended.
Caravan Accessory Box
The range of awnings is staggering. I found exactly what I was looking for at a price that was hundreds cheaper than the local dealership. Delivery was fast and well packaged. Will definitely be back for the bathroom accessories.
Used Caravan
The customer service is wonderful! I got confused with the awning size chart and called them. The lady on the phone was so patient and measured it out with me. The awning fits perfectly. Thank you so much.
Caravan Awning
I’ve been using these guys for years. They are the only place I trust for genuine parts. When my motor mover broke in peak season, they had the replacement part in stock and talked me through the install over the phone. Unbelievable service.


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