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    Understanding hot water circulating pumps

    Hot water circulating pumps are used to circulate the hot water in a closed circuit to prevent the water from cooling.

    Water in a hot water system cools when not in use for a long time and accumulates near the taps, so when you turn on the hot water tap, the gathered cold water flows out before the hot water comes out. In addition, this free-running cold water while waiting for warm water leads to wastage.

    However, using a hot water circulating pump circumvents the time lag and water wastage. It continuously circulates a little hot water through the system, making it available instantly when you turn on the top.

    Selecting a hot water circulating pump

    To ensure your hot water circulating pumps function efficiently, they should be chosen based on these physical and environmental factors, their need, and application:

    • Circulating pumps are classified as on-demand circulation pumps and auto-timed circulation pumps. The former is manually operated at the required time, while the latter is automatically controlled by an adjustable timer and aquastat. As a result, auto-timed pumps are more expensive.
    • Water flow rate, measured in litres per minute (LPM), is the amount of hot water necessary to be circulated in the system to ensure an instant hot water supply.
    • Cold water is returned to the system through a return line. A return line is only required when the tap is far away from the pump system.
    • The amount of energy necessary to power pump operation efficiently is another important consideration. The power source is usually powered by batteries or solar power.
    • Piping for the systems needs to be effectively insulated to prevent heat loss during flow.

    Advantages of using a hot water circulation pump

    • Hot water is available instantly with no waiting time.
    • Water wastage is significantly reduced.
    • Instant clean running water because there’s no water stagnation.
    • Elimination of bacteria and pathogens by heating the water to a specific temperature.
    • Maintenance-free and lower operational costs.

    Contact Combustion and Heating Systems for details

    If you have any questions about hot water circulating pumps, contact us today. We offer a diverse range of specialised industrial heating equipment, including oil and gas burners, hot water and steam boilers, hot water circulating pumps, expansion tanks, burner control boxes, oil pumps, nozzles, valves and pressure switches, solenoids, and more.

    Benefits of a gas geyser

    A gas geyser uses gas to heat water in a hot water tank system. It is one of the most energy-efficient geysers on the market because the tank is isolated to conserve heat for a long time. A gas burner automatically turns on when necessary to ensure the stored water is maintained at a precise… Continue Reading

    Do you need to have your boiler repaired?

    Boilers are dependable heating systems, and because they have fewer moving parts than furnaces or heat pumps, they are less prone to wear and tear and last longer in general. But there are times when boiler repairs are necessary to prevent more significant problems further down the line. These are some indications that you need… Continue Reading

    Advantages of buying reconditioned boilers

    When it comes to reconditioned boilers, their reliability is often questioned. However, buyers often don’t realise that a reconditioned boiler can run just as efficiently as a new boiler and costs a lot less. These are some of the many advantages to justify buying a reconditioned boiler over a new one. Speed: Manufacturers’ lead times… Continue Reading

    Which Type of Boiler Would Benefit Your Facility Best

    Which Type of Boiler Would Benefit Your Facility Best

    Industrial tasks and boilers have always had a fairly close relationship, and the differing technical nature of each and every sector of industry means that boilers in general cover a broad range of specifications. Consider the differences in the needs for heat production between the petrochemical and steel-cutting industries and even with just these two… Continue Reading

    Understanding Industrial Boilers & Burners

    Understanding Industrial Boilers & Burners

    Industrial processes require highly specialised equipment to ensure a number of important factors in the working environment. From keeping plants under proper humidity control, providing heating, offering power and energy, right through to cooling and cleaning. Each of these factors needs to be carefully seen to if plants are to ensure the quality of their… Continue Reading

    Combustion and Heating Systems at your service

    Combustion and Heating Systems at your service

    Our sales and technical staff provide our clients with efficient and friendly service followed up by a 24 hour after sales technical support team. We sell oil and gas burners, hot water boilers, hot water heating systems, heating equipment and all the spare parts. Our factory does maintenance, services, repairs and reconditioning of burners and… Continue Reading

    The Services we can offer you at Combustion and Heating Systems

    The Services we can offer you at Combustion and Heating Systems

    We supply, install, service and maintain heating equipment which includes oil and gas burners, hot water boilers, heating systems along with a large stock of all their parts. Our company was established in 1990 and we carry the largest stock holdings of package burners which we distribute throughout South Africa and neighbouring countries, namely Botswana,… Continue Reading