Which circulator pump is good for you?

Hot water circulator pumps can be found nearly everywhere with a variety of manufacturers and options to choose from. Many of the earlier circulator pumps worked non-stop and were more expensive to operate because they were constantly using electricity.

How to size a circulator heating pump?

Fitting a circulating pump to your hot water system is not complicated, but you must know how to properly size the pump. Getting the largest pump might not be the right solution if you have a small hot water system, but one that is too small can cause a lot of problems in obtaining hot water from your system.

The misconception about pump head which 90% of people don’t know

The pump head is another way of expressing energy. Like common misconceptions, it is not another way of expressing pressure or the direct measurement of the height to which a pump can deliver the fluid.

The features of circulator pumps

Circulator pumps are also called circulating pumps, circulation pumps, which are commonly used to circulate clean liquids in a hydronic heating or cooling system.

ErP, EEI and Circulator Pumps

The Energy-related Products Directive (ErP) 2009/125/EC is a European Union regulation aimed at improving energy efficiency and reducing the environmental impact of energy-related products, including circulator pumps.

PWM – Remote Control On Circulator Pumps

PWM make it possible to control the pump in a remote distance through a digital cable transmitting digital signal. Pumps with PWM control are widely used in the gas boilers systems and heat pump systems.


What are the benefits of using high efficiency pumps?

High efficiency provide an 85% to 90% reduction of electrical consumption. Depending on what you pay per kilowatt hour, that electrical savings may translate into $3 to $5 per month during the heating season.

Wet rotor & dry rotor circulator pumps- what’s the difference?

Depending on the design, all the pumping units of the heating systems are divided into two types:
-Wet rotor circulator pump
-Dry rotor circulator pump

Open vented and closed loop heating system-which is better for you?

In general there are two types of system for accommodating thermal expansion, Open vented system and Sealed system (Closed loop).
-In an open vented system(open loop) an open tank at the highest point of the installation is used to store the expanded fluid.
-In a closed system (pressurised/sealed) an expansion vessel is used to store the expanded fluid.

Tips for choosing and using circulator pumps

The use of circulator pumps in heating systems saves up to 30% of the energy used to heat the coolant. When choosing a circulator pump, it is necessary to consider where the pump will be used in the heating system or hot water supply. The circulator pumps work continuously throughout the heating season, so they are faced with high demands: silent operation, low power consumption, simplicity and reliability.

How to avoid blocked circulator pump

If the circulator pump or system is filled up with water for the first time and the pump is stopped for a longer period of some weeks or months, it might happen that the pump is not able to start. There are two de-blocking systems. Circulator pumps usually feature one of them or both.


How to increase the water pressure in house

The problem of low water pressure is quite common in multi-storey buildings, where residents of the upper floors, due to the very low pressure in the plumbing system, often sit without water. A good way out of such an unpleasant situation is to install a booster pump to increase the pressure level.

Troubleshooting Tips for Circulator Pumps

Since a circulator pump is a moving part with rotors and impellers, it can fail or malfunction if one of those parts becomes excessively worn or damaged. The good news is that the circulator pump often gives off warning signs before it completely stops.

Save your money by adding a recirculation system and a thermal-expansion tank

How to put your hot-water system on an energy diet without sacrificing comfort? Here are the two strategies that will reduce your energy bills and your carbon footprint.

How to solve the problem of long wait for hot water

You must be familiar with the long wait for hot water: You turn on a hot-water faucet and have to wait a full two minutes for the hot water to arrive. Learn how to efficiently reduce your wait time for hot water.

Circulator Pump and Heat Pump System

A heat pump is an HVAC product that uses the heat of outside air, water or earth to efficiently heat your home in the winter and cool it in the summer. Circulator pump works like a heart of heat pump to circulate the water in the system and increase the system pressure.

What Types of Coolant Can Be Used for Circulator Pumps in Liquid Cooling Systems?

Water, deionized water, glycol/water solutions, and dielectric fluids are the heat transfer fluids most commonly used in high performance liquid cooling systems.

Why is the circulator pump making noise (buzzing or rattling)?

There are six common pump problems that cause noise, such as air in the system, oversized and undersized pumps, excessive wear of bearings, clogged system, incorrect speed setting, and lack of NPSHa.

Most Common Reasons for Rapid Wear of Circulator Pump Shaft

The reason causing the rapid wear of circulator pumps is not only one. To get optimum abrasive wear resistance, we should use ceramic shafts & bearings combination. To reduce the wear, we should make sure the shaft is horizontal while installing the pump, and vent the air in pump systems before use the pump.

What to do if the Boiler Circulator Pump wears down?

If a boiler circulator pump wears down, it can begin to cause problems. Instead of replacing the complete old pump, you can choose to keep the old pump housing, and replace the pump head only. Or you can even replace the pump rotor kit only accordingly. It would save you time and money.

Tips for selecting and installing a circulator pump in central heating system

The characteristics of the acquired circulator pump should be 10-15% lower than the calculated values.  For 10 m of pipe length, 0.6 m of pump pressure head is required. A 25 kW boiler heats 25 L/min, a 15 kW radiator needs a flow of 15 L/min.

Mitigating Circulator Pump Noise: Causes and Solutions

Circulator pumps can be a source of unwanted noise that can be annoying and disruptive. How to mitigate it?

What you don’t know about underfloor heating systems

Underfloor heating systems are divided into water-based and electrical ones. Both types are in demand, and it is impossible to say for sure which one is better. However, experts say that it is preferable to buy a thin water heat-insulated floor for several reasons. Let’s find out.

Boiler keeps losing pressure- Why and how to fix

If you’ve got a problem with the pressure in your boiler and the fact it’s constantly dropping, there’s a few things that can cause this and we’re just going through them step by step and also give you a quick idea about how you can fix the problem.

Understanding the Significance of Nominal Diameter in Circulator Pumps

The nominal diameter (DN) of circulator pumps is an important specification to consider when selecting the appropriate pump for your system.

Importance of Installing a Booster Pump Close to Outlets for Efficient Water Distribution

The booster pump should be installed as close to the outlets as possible. Why?

Need More Help?

Our advisors are 24/7 online to answer any of your questions. Contact to get a free proposal today.

Contact Us

    Please input this code:captcha