Why choose a Hills Solar
Esteem Solar Hot Water Systems
using
the advanced evacuated tube technology
Key
Features and Benefits
Key Features
- Hills Solar evacuated
glass tubes provide superior daily heat output due to the cylindrical
absorber always being perpendicular to the Sun.
- Insulating properties
of the vacuum in the hills solar evacuated tube layout greater
than 92% of the heat from the Sun to be retained.
- Heat is rapidly
transferred from the copper heat pipe and header to the circulating
water from a storage tank, passing through the well insulated
manifold, ensuring maximum solar heat gain.
- The Rockwool insulated
collector manifold, sealed evacuated tubes and freeze-protected
heat pipes allow reliable operation even in the coldest areas.
- Due to their cylindrical
shape Hills Solar evacuated glass tubes naturally self-cleaning
when it rains and thus don't lose performance through the accumulation
of dirt and pollutants.
- The internal copper
manifold pipe in the Hills Solar collector is 35 mm in diameter;
ensuring greater water flow.
- The stainless steel
collector frame provides a strength and long-term corrosion
resistance.
- Easy installation
and reliable operation is insured through automated palm operation,
low-temperature protection and prewired power and sensor leads
by the Hills Solar controller.
- Split system design
with low-profile collector removes the need for a large unsightly
tank on the roof and the need for cranes, hoists or possible
roof reinforcing.
Hills Solar storage
tanks and boosting
- Hills Solar use
stainless steel storage tanks, which provide proven long-term
corrosion resistance, without the need for a sacrificial anode
and are available with Gas or Electric boosters.
- Polymeric outer
casting all Ultra Violet stabilisation on the HIlls Solar storage
tanks make it resistant to rust and protect them from the elements.
This is particularly necessary in coastal, frost-prone, or damp
areas.
- Hills solar storage
tanks incorporate a design to promote thermal stratification
that prevents the mixing of incoming cold and hot water at the
top of the tank.
- Dual Positive Domed
Cylinder results in optimum water delivery and promotes flushing-through
of suspended solids.
- In gas-boosted systems
the Bosch Highflown Gas Booster heats water only when required,
minimising energy wastage. The booster switches on when the
temperature of the water from the storage tank is less than
60°C (the temperature that the solar transfer valve is set
to) .
- After power failures
the Bosch gas booster does not require a technician to reset
the gas booster.
- storage tanks incorporate
a high level of insulation to keep solar hot water hotter longer.
The
HIlls Solar ESTEEMTM
evacuated tube is a cylindrical; this means that they face the
sun for longer, absorbing more of the sun's energy.
The
tubes consist of two layers of borosilicate glass with a vacuum
between these two layers. This evacuated layer in the tubes acts
much like a thermos flask retaining energy absorbed from the Sun.
This helps increase the efficiency of the collector and also protects
it from the effects of cold air. As a result, an evacuated tube
solar collector is the perfect system for cooler climates.
The
Sun's energy that is absorbed by the tubes is then transferred
to your water via special heat pipes located inside each tube.
A small amount of non-toxic liquid is in each heat pipe. This
liquid is turned to gas by the Sun; this gas rises to the tips
of the pipes, which are inserted, into a heat transfer manifold
located on your roof. Water is then pumped through this manifold
absorbing the heat and stored in a water storage tank located
below.
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