Overcoming dead legs with heat tracing

Montague Properties partnered with heat tracing specialists eltherm South Africa to overcome temperature maintenance challenges in its water reticulation systems at Jackal Creek Golf Estate in Roodepoort, Johannesburg, Gauteng.

Eltherm pic2 EHTeltherm electrical heat tracing (EHT).
Image credit: eltherm South Africa

The golf estate’s reticulation system had been experiencing difficulties with hot water and residents complained that large volumes of water were wasted before it would reach the right temperature. Following an investigation, eltherm South Africa found that this was due to ‘dead legs’ meaning water sat in the pipes and cooled during the night or day.

Montague Properties partnered with eltherm for the design and installation of an electrical heat tracing (EHT) solution that would mitigate the dead legs in the reticulation system. This was done by maintaining the water temperature coming from the boiler.

Explains Giles Maynard, general manager at eltherm South Africa: “Montague Properties was looking for a solution that could be installed quickly and offer an alternative to a costly closed loop reticulation system.

“We proposed a self-regulating EHT system that would maintain the temperature of the hot water (in its plumbing system) at 60°C thereby overcoming any possible dead legs and ensuring the property group meet the requirements of the SANS 10400 XA 10204 building code while also saving on energy and water costs.”

Giles maynard


Giles Maynard, General Manager at eltherm South Africa.
Image credit: eltherm South Africa


The EHT solution at Jackal Creek Golf Estate was installed in under four weeks. The insulation involved fastening the electrical heat tracing onto the outside of the plumbing pipe lines and then insulating it with preformed over-the-counter insulation.  

Jackal Creek Golf Estate now benefits from a system that ensures temperature is maintained and which prevents the wastage of unnecessary water or energy.

BENEFITS OF AN EHT SYSTEM FOR THE PLUMBING AND PROPERTY DEVELOPMENT INDUSTRIES

  • Meets environmental requirements for greener building designs;
  • Metallic and non-metallic pipes can be heat traced;
  • Simple and quick to install;
  • Significant water and energy savings;
  • Lower maintenance cost, as the heat tracing is very reliable and can be quickly repaired in the event of a failure; and
  • Drives down overall operating costs (OPEX).

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