Which is better zone valves or circulator pumps?

The “zone valve” gang retort that modern heating zone valves are as reliable or more reliable than [some models of] heating circulator pumps and that a zone valve costs a lot less. And adding zone control to an existing heating system may be less costly by adding a zone valve than by adding a circulator pump.

Do zone valves go on supply or return?





In most installations, the zone valves are in the returns, where the water is cooler. The cooler temperatures are easier on the valves. It has been the practice of some to place them in the supply using a manifold just above the boiler; this is often in conjunction with the “pumping away” concept.

Where should zone valves be placed?

The zone valve needs to be positioned after the boiler and circulator of the central heating system. They can be located either on the hot side (before the hot water goes into the zone) or on the cold side (after the water goes throughout the building).

Do I need zone valves?

Zone valves are responsible for reducing energy wastage, they ensure that hot water and therefore heat is there as and when you need it, however, they also ensure that when you don’t need it, energy is not wasted on heating a system that is not in use.

Where do you put the circulator pump on a boiler?

Standard good practice among heating techs is to install the circulator pump on the return side of the loop where cooler temperatures can extend its life.

Why are multiple heating circuits zones often used?





Multi-zone systems using separate circuits have another advantage: Each zone receives water at about the same temperature. This may allow the heat emitters to be sized somewhat smaller in comparison to a series circuit.

Can you leave a zone valve on manual?

Leaving the valve in the manual position will not harm the boiler, but you will always have heating as the boiler maintains its temperature for the hot water.

Can you manually open a zone valve?

Quote from the video:
Quote from Youtube video: But you can manually. Move this leaver across and lock it fully open like that and it would allow flow for it.

How long do zone valves last?

It is only crucially important for a Taco zone valve. The system pressure is fine too so leave that alone. Those valves should last much longer than 2 years.

Do zone valves fail open?



The zone valve opens and closes according to the temperature in the room as determined by the thermostat and your settings. Sometimes the zone valve will fail to operate properly.

What is the purpose of a zone valve?

A zone valve is a specific type of valve used to control the flow of water or steam in a hydronic heating or cooling system. In the interest of improving efficiency and occupant comfort, such systems are commonly divided up into multiple zones.

Do I need zone valve for underfloor heating?

Do I need a two-port zone valve? It is recommended that a two-port zone valve is installed with every manifold. This ensures total boiler interlock and control over the system.

Do you need a two port valve for underfloor heating?



The underfloor heating system uses its own feed from the boiler, with a blending valve and pump fitted at the manifold, to lower the water temperature entering the underfloor heating system. Each system needs a two-port valve (i.e. an ‘S-plan’ system) to give them independent control.

What is the best way to control underfloor heating?

Digital thermostats are by far the most popular choice now for underfloor heating because this control system helps the UFH operate more efficiently and offers the user more flexibility, meaning that the heating can be programmed around the lifestyle of the individual.

What temperature should I set my underfloor heating manifold?

The heat source supplies water to the Manifold via the Manifold’s Mixing Unit to guarantee designed water temperature (this can be set between 20 – 60 Degrees Celsius).

Should you leave underfloor heating on all the time?

It is advised that in the depths of winter, an underfloor heating system should be kept on at all times. Although it should be at different temperatures depending on usage and activity in the house. This is because underfloor heating can take two to three hours to warm up, so it is best to not completely turn it off.

Should the floor feel warm with underfloor heating?



As a general rule of thumb, your heated floor shouldn’t feel hot – it should just not feel cold.

Is it cheaper to leave underfloor heating on all the time?

Intro. We all know that a well installed and insulated wet underfloor heating system can save households money on their heating bills when compared to a traditional radiator set-up.

What water temperature should underfloor heating run at?

Typically, the temperature of the water in an underfloor heating system is between 35 and 55 degrees Celsius – depending on the floor construction.

What temperature should in floor heat be set at?

The ideal temperature for i- floor heating is 75° F (24° C). For a little range, anywhere between 74° F and 77° F sits in the sweet spot temperature-wise for in-floor heating. Some people will accept that for what it is, but for those curious as to why specifically 75° F is the ideal temperature, keep reading.