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What is a continuous gas water heater and how does it work? An instantaneous water heater heats water only while is flows through the appliances. That water is used immediately, not stored. (please view image to the right) The push rod rising from the water section pushes the rod in the gas section up, thus overcoming the return spring and opening the gas valve. Gas flows through the burner, where it ignites off a permanent pilot. Flame. The main burner heats the water as it flows through the heating body. When the water outlet is closed (e.g. turning shower off), the flow through the water section stops. The return spring now pushes the gas valve back down on to its seating, shutting off the main burner. Instant water heaters can supply hot water indefinitely, but at a limited rate of flow (VERY IMPORTNT TO CHECK WHEN UPGRADING FROM A HWC). If more than one outlet is opened, the rate of flow of hot water from each outlet is reduced. ON the other hand, a minimum flow rate is needed before the burner will ignite. Euro Plumbing will check that appliances with small flow rates such as dishwashers, draw enough water to operate the water heater. |
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Mains pressure STORAGE water heaters can provide high rates of flow to several outlets at once. However, any storage system can run out of hot water! Where storage water heating is undesirable or unsuitable, instantaneous heating is recommended. For example, showers or hot cleansing processes may only need a limited flow rate but may exhaust a stored supply of hot water. We have complied a few “general” specials below, these can be customised to suit your unique requirements. If you require a price on a brand or model not indicated on this website, please call our tea, on 0800 TEAM EURO or email us on instant@europlumbing.co.nz |
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