Enviruheat

1. The system has a copper header inside the tank called a heat exchanger

2. Tubes have copper rods inside that fit into the copper header of the geyser these are called heat pipes

3. Each of the heat pipes has heat transfer fluid inside that boils @ 30 degrees celcius

4. The sun shines on the tubes & heat is transfered to the heat pipe & the fluid inside heats up

5. @ 30 degrees the fluid boils & rises to the top of the heat pipe that is inserted in to the heat exchanger inside the drum

6. The eat exchanger heats up & transfers the heat to the water around the it

 Evacuated tubes contain practically no water and so they can resist freezing conditions

 The curved shape of the tubes allows thermal absorption from a greater range of sun angles, and therefore for a greater portion of the day

 Tubes permit high heat retention and so much of the heat collected during the day can be retained during overcast days and through the night

 Tubes fit independently in the header pipe and can be individually removed and replaced without having to decommission the entire system

 Tubes provide lower aerodynamic drag due to air being able to run around them, proving less wind-drag in some high wind locations

 Work exceptionally well on cloudy/overcast days

 The large bore header-pipe ensures reliability in hard water (high calcium hardness)

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