Hot Water
Hot Water | Tankless Water Heater Install | Plumbing | Cowan
Imagine stepping into a hot shower in Cowan and never worrying about the water running cold. That’s the comfort HEP’s licensed plumbers bring with our tankless water heater install expertise. We’ll remove bulky, outdated tanks and replace them with sleek, high-efficiency units that deliver endless hot water on demand, slash standby energy loss, and free up valuable space in your utility room.
From the first call to the final temperature check, we handle every detail—sizing, venting, gas or electric hookups, and code compliance—so you can enjoy uninterrupted comfort and lower utility bills for years to come. Ready to upgrade? Reach out to HEP today and let our friendly Cowan team turn “hot water hassles” into “hot water happiness.”
FAQs
What are the main benefits of switching to a tankless water heater in Cowan?
Tankless heaters deliver hot water on-demand, so you only heat water when you need it. This cuts standby energy losses typical of storage tanks and can reduce hot-water energy use by 20–40 %. Tankless units also take up less wall space, last 18–20 years on average (about twice as long as a tank), and provide an endless supply of hot water—great for larger families or back-to-back showers. In Cowan’s mild climate, the incoming water temperature is moderate, allowing most models to achieve peak efficiency and shorter ‘cold-water sandwich’ delays.
How do I determine the correct size (flow rate) for my household?
Sizing is based on two factors: 1) the peak number of hot-water fixtures you expect to use at once and 2) the temperature rise required (difference between incoming water temperature—about 18 °C in Cowan—and your desired outlet temperature, usually 50 °C). We add up the flow rates of simultaneous fixtures (e.g., 8 L / min shower + 5 L / min kitchen tap = 13 L / min) and choose a unit that can deliver that flow at a 32 °C rise. Our licensed plumbers perform this calculation during the site visit to ensure you never experience a drop in pressure or temperature.
Can a tankless unit be connected to my existing gas or electrical supply?
In most Cowan homes the answer is yes, but we always verify. Gas models require a dedicated natural-gas line with sufficient volume and pressure (often 20–40 mm pipe). If your current gas meter or pipework is undersized, we arrange an upgrade with Jemena. Electric models need a 32–50 A circuit and sometimes a three-phase supply. We assess your switchboard capacity and organise an electrician if upgrades are needed. For either type we also inspect venting paths, condensate drainage and water pipe routing to comply with NSW plumbing and gasfitting codes.
How long does installation take and will I be without hot water?
A straightforward replacement of an outdoor tank with an outdoor tankless unit generally takes 4–6 hours. Converting an indoor tank cupboard to a wall-mounted indoor condensing unit can take a full day due to venting and condensate lines. We schedule the job so you have hot water right up until we shut off the old system, and we test and commission the new heater before we leave—so downtime is usually under two hours. When extensive gas or electrical upgrades are required, we will advise you beforehand and can set up a temporary hot-water connection if needed.
What maintenance does a tankless water heater require in Cowan’s water conditions?
Tankless units need far less attention than storage tanks, but they are not maintenance-free. Cowan’s town water has moderate hardness (around 120 ppm). We recommend an annual 30-minute vinegar or food-grade descaling flush to remove mineral build-up on the heat exchanger. Many homeowners do this themselves with an inexpensive pump kit, or you can book our fixed-price service visit. We also inspect the burner, fan and condensate trap, clean the inlet water filter, and confirm error-code history. Regular servicing protects your warranty and can add years to the unit’s life.
Are there rebates or incentives available for installing a tankless water heater in Cowan?
Yes. Under the NSW Energy Savings Scheme (ESS) you may receive Small-scale Technology Certificates (STCs) worth $400–$1,000 depending on the model’s efficiency and your roof’s solar orientation. If you’re replacing an electric storage tank, additional Victorian-style rebates don’t apply in NSW, but the federal STC program still does. We calculate your exact entitlement, discount the value upfront from your invoice, and handle all paperwork. Some private health and strata insurers also offer premium reductions for households that eliminate stored hot-water risk. Ask us during your quote visit and we’ll outline every available saving.