Products
EFOY COMFORT
Weighing just 8 kg (17.6 lbs), the EFOY COMFORT is extremely lightweight and so compact that you will always find space for it in your motor home or boat. It delivers a vast amount of energy yet takes up very little space.
EFOY COMFORT Benefits
Can be used all year round
With the EFOY COMFORT, you have a reliable electricity supply when you are on the road or at sea. Irrespective of the weather and all year round - even at sub-zero temperatures.
Quiet
When the EFOY COMFORT is installed as recommended, you will almost hear nothing. Our advanced insulation and the sound damping system ensure quiet operation.
Fully automatic and maintenance-free
Your EFOY COMFORT supplies electricity as soon as all connections are properly made. All you have to do is to make sure that fuel is always supplied. Additionally, the unit requires no maintenance.
Eco-friendly
The EFOY COMFORT is economical in use and extremely eco-friendly, emitting only a small amount of water and heat.
Lightweight and compact
Thanks to its compact design and low weight the EFOY COMFORT will easily fit into a convenient space - in the rear storage compartment, the side compartment or under the seats.
Comparison to a solar panel
Over the period of one year, EFOY COMFORT provides 3 to 10 times as much electricity as a solar system with the same power rating. To produce the same amount of electricity as an EFOY COMFORT 80 (40 W) with solar power, depending on the country and time of year, you would need a solar system with an output of between 120 and 400 Wp.
EFOY Comfort
How it works
How does the EFOY COMFORT work?
The EFOY COMFORT charges the on-board battery fully automatically. The integrated charge controller permanently monitors the charge level of the 12 V battery. If necessary, the EFOY COMFORT starts automatically and switches off again once the battery is charged. This gives you more than permanently fully charged power reserves. Your batteries will also last a lot longer because constant recharging protects them against a damaging exhaustive discharge. With an inverter, you can also operate 230 V devices. The EFOY COMFORT produces electricity using the fuel in the fuel cartridge, adding oxygen from the air. In addition to the electricity, it only produces waste heat and water vapour containing an insignificant amount of carbon dioxide.
It is extremely eco-friendly.
The principle behind SFC fuel cells
A fuel cell is an alternative source of energy. It transforms chemical energy into electrical energy directly, with no intermediate steps, no moving parts and with no significant loss in energy, making it a particularly efficient source of power. A lot of patented innovation has gone into our units, making the EFOY fuel cell a marvel of miniaturization, a lightweight but high-powered, long-lasting performer. SFC’s home-grown technology has positioned EFOY fuel cells to lead the field in fuel-cell systems for mobile applications.
How does an EFOY fuel cell work?
At the heart of every EFOY fuel cell is the stack. The stack actually consists of several cells: an anode, a cathode and a membrane that acts as an electrolyte, separating the anode and the cathode from each other. Positively charged electrical particles (protons) can permeate the membrane. Methanol and water are introduced on the anode side while ambient oxygen enters the cathode side. H+ ions, free electrons and carbon dioxide arise on the anode side. The protons can permeate the membrane while the electrons have to travel an electrical circuit over to the cathode side, thereby producing electrical current. H+ ions and water vapor arise on the cathode side, making EFOY fuel cells an extremely environmentally friendly way to generate electricity.
2 CH3OH + 3 O2 => 4 H2O + 2 CO2
EFOY fuel cells use liquid fuel
Every EFOY fuel cell employs DMFC (Direct Methanol Fuel Cell) technology which transforms methanol directly into electrical current. That's a real advantage, especially for mobile applications, because liquid methanol is easy to transport anywhere in practical EFOY fuel cartridges.
EFOY Installation
A useful video from the product manufacturer, SFC Energy, detailing how the EFOY COMFORT can be installed
