Regular checks and services to its PTR valve, and replacement every 5 years as stated on side of hot water will make your home’s water heating system last twice or thrice as long. Checks are easily done, though you must take safety precautions. Service It Australia offers affordable repairs anywhere in Melbourne.
Winter is coming to Melbourne – and the just the time when your house’s hot water system gives up on you, leaving unwashed dishes in the sink, unwashed clothes piling up, and unshaven husbands… did your PTR valve just breakdown?
A few simple checks done regularly will make sure that your home’s heating system works for twice or thrice as many years than otherwise, and you don’t have to call services every now and then. This is more urgent if your hot water comes from a storage tank system, where the risk of pressure accumulating can be high. Continuous flow systems are a lower risk, but still need checks.
PTR stands for Pressure, Temperature Relief. The PTR valve is the one that makes sure your storage tank heater does not burst because of overheating and a build-up of steam pressure. It’s easy to check if it is working fine.
Your heater’s manufacturer will have given you a manual, with advice on how frequently to test your PTR Valve. Usually it is six months, but you may need more frequent tests if the water is hard.Introduction
Winter is coming to Melbourne – and the just the time when your house’s hot water system gives up on you, leaving unwashed dishes in the sink, unwashed clothes piling up, and unshaven husbands… did your PTR valve just breakdown?
A few simple checks done regularly will make sure that your home’s heating system works for twice or thrice as many years than otherwise, and you don’t have to call services every now and then. This is more urgent if your hot water comes from a storage tank system, where the risk of pressure accumulating can be high. Continuous flow systems are a lower risk, but still need checks.
How Do I Test My Heating System’s (PTR) Valve?
- Check for leaks: if hot water is coming out of the outlet pipe, your PTR valve needs to be serviced or changed, else your heater will not generate water that’s hot enough.
- Flush it: Put on thick, long pants, gloves and shoes. Clean up the area below the PTR valve. Stand as far as possible and lift its handle. Extremely hot water should rush out. If it seems stuck, don’t force it. It probably needs servicing/replacing as it may be clogged or rusted. Close it. Hot water should stop flowing immediately.
How Often Should I Test My Heating System’s PTR Valve?
The manual, if you haven’t lost it, might also tell you when to replace it, since they come with a limited life. Usually, you are recommended to change it once every two or three years.
My PTR Valve Keeps Leaking. Why?
Your system needs to give space to the steam to expand as it becomes hot. The PTR valve helps discharge 3-7% of the hot water so that excess pressure does not build up as steam accumulates. A faulty valve can cause doming: a bulging of the heater as the metal expands under the force of heat. This reduces the life of your residential system.
If the hot water is hard, salts may accumulate in the outlet, adding to the pressure. Too much pressure on the valve may cause it to fail altogether. Other failure can be because its parts have worn away with use. All this causes leaking, and therefore insufficient heating.
Conclusion
Keeping your PTR Valves healthy gives your house hot water when you want it. At Service It Australia, we offer affordable repair and replacement services, as well as annual maintenance contracts anywhere in Melbourne. We’re just a call away.
Author Bio
Mark O'Brien set up Service It Australia with a focus on heater repairs and maintenance, anywhere in Melbourne. He specialises in gas hot water systems, and also solar hot water systems.






