FEATURES
Johan ven den Berg, Burgess Plumbing’s business
development manager.
James Vermeulen, Electrolux product manager:
Green Energy.
“The hotel did not want a noisy ‘air to water’ heat pump and
as the pool plant room was located near to the pool, though
hidden. It was best that a ‘water to water’ heat pump be
used, which is much quieter and has a higher COP of 7.5.
This was the case for the main hotel where we took thermal
energy from the lake next to the hotel and with a temperature
differential of 5°C we were able to generate about 58°C
using three 80 kW ‘water to water’ heat pumps to pre-heat
four 20 000ℓ electric boilers, raising the Delta T of the water
by 40°C and therefore providing significant energy savings
for the hotel,” says Boultwood.
August 2019 Volume 25 I Number 6
“The pay
back time for
heat pumps
is dependent
on many
influencing
factors, like
hot water
consumption.”
cover. We replaced a 900kW electric boiler which was used
to heat the pool.
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Sascha Altmann, Managing Director: Stiebel Eltron
www.plumbingafrica.co.za