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Hot Water System replacement at Wilston - See if you can spot the difference

05 Jul 2023

 by Brett Mulhall

The devil is in the detail if you look closely at this hot water system upgrade at Williston. While it might appear that this is just an "in place" replacement of an old hot water system that failed, there is a lot that is different if you look closely.

A corrugated concrete slab
You can see a new piece of concrete sitting on top of an old piece of concrete. The reason for this is that traditional flat hot water system concrete slabs allowed water to sit underneath the hot water system. Over a period of time this would cause the system to rust from the underside in. It may well be the reason that the old hot water system at this house failed. Luckily these days there are precast corrugated hot water system slabs which are simply placed on top of the old one to solve a traditional long term point of failure.

Lagging of the pipes for safety
For some years Australian Standards have dictated that hot water systems should be safe and the chance of burns or scolding is virtually removed completely. Here you can see that the pipes that contain hot water have been lagged. That is a layer of insulation has been applied around the pipe so that they are not hot to touch. That makes it a lot safer, particularly for children. You can see that not only the hot water pipes feeding the house are lagged but also the overflow outlet which from time to time might carry scoldingly hot water as well.

Lagging of pipes for insulation
With the world focusing on being energy lean, insulation is now an important part of hot water system installation. Regardless of the energy source, the hot water produced should be delivered to the house with as little loss to the environment as possible. That's energy efficient and energy smart.

Hot Water Tempering Valve
A tempering valve for the hot water unit is a temperature-controlled mechanism to control the hot water temperature at the point of going into the house. This means that water supplied to the house taps, kitchen sink, bath, shower, laundry and elsewhere is closely regulated so that there is little chance of anyone being scolded. Tempering valves are required by Australian Standards.

Overflow drainage
To prevent hot water outletting and potentially burning someone or a child the water standing nearby, the overflow drainage flows to a downpipe. Draining the water correctly also removes the chance of pooling around the hot water system which may cause rust, mudding ground, or slippery moss growing on the concrete slab.

If your hot water system is struggling to meet demands, failing, or outdated, trust the 5-star-rated experts at Aptus Plumbing and Gas. We offer hot water system repairs and replacements all across Brisbane and the Moreton region. Evaluate your hot water system problem with our easy to use diagnostic by clicking here or get straight onto the problem with a call to 07 3205 1991.

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