What is a recirculating pump?

Have you ever thought about why the hot water nozzle gives off cold water when you turn it on first? Based on the size of your apartment, it may take some minutes for the hot water to start flowing, which is quite inconvenient and time-wasting. The reason why this happens is due to the distance the hot water needs to travel before it gets to the faucet and that’s why cold water comes out first.

When you turn off your tap, the hot water stops flowing from the heater but doesn’t return to it. It remains in the pipe and gets cold. When next you need hot water, the cold ones have to flow out first to allow the hot one flow. Now, this is a real-life scenario which can only be solved by a recirculating pump.

What is a recirculating pump?

A hot water recirculating pump is the best sump pump used to circulate hot water around the piping system of a house. The function of the recirculating pump is to make sure that hot water is very close to the point of consumption to minimize water wastage and to improve easy access.  

You can know the size of the recirculating pipe you need through this formula:

Water flow (QC) =   Φ/ΔT x 4200

Where QC = the circulating water flow measured in [m3/s]

             Φ = heat loss from the circulating system [kw]

              ΔT = the water-cooling temperature determined at the farthest consumption point  

Types of recirculating pumps

 There are two types of recirculating pumps namely;

A full recirculating pump system

Recirculating pump comfort system

A full recirculating pump system

This is a system that adds a new pipe for only hot water flow in the home plumbing system. This piping creates a loop from the water heater to the faucet and back again. When you close the nozzle, the remaining water goes back into the water heater through the loop connection. So, There’s no water is left in the pipe to get cold, and when you put on your nozzle, you get hot water instantly.

Recirculating pump comfort system

This system makes use of the regular water pipe to send the remaining water to the heater to be re-heated for use. This system got developed as a cost-effective method for homeowners who get frustrated, waiting for hot water but can’t afford the first system. This system will provide water more quickly in areas that take long before the hot water flows.

Advantages of installing a recirculating pump

  • Convenience
  • Ease of installation
  • Quick water usage
  • Ease of operation
  • Easy selection

Disadvantages of installing a recirculating pump

  • The initial cost of installation
  • Rate of power consumption
  • Heat loss due to the steady flow of hot water, but that can be solved by insulating the pipe

An under sink hot water recirculating pump or one for your bathroom will reduce the time spent waiting for hot water. You can save your time, money, and water by installing this pump. If you need help or more information concerning one of the best sump pumps available, contact us today!