What is Delta T?

What is delta T?

If I told you that your radiators were losing at least 11 degrees in the temperature of the water going into your radiator, compared to what was coming out of it, would you be happy with that?  Well this is the case with many heating systems and is the reason why it takes longer to heat up your home and maintain a comfortable optimum temperature.

To measure the efficiency of your radiators we use the scientific term Delta T. Delta T is used to measure the difference of temperature between two points. So if the temperature of the water entering the radiator is 52°C and the temperature leaving the radiator is 41°C. Then the efficiency of that the system would be calculated as 11oC Delta T.

With Oxyvent you can have that down to 2oC Delta T – which will mean less boiler cycles, less fuel and better heat output.

 The first step to solve any problem is to acknowledge that there is a problem

The following video illustrates what the inside of your radiator looks like when your heating system is on.

From years of experience dealing with inefficient and dysfunctional systems, Tim knew the problems were not going to go away, so he decided to fix them.

He wanted to design a system that could isolate the water coming from the boiler, from the rest of the system, so it could operate independently. Tim was able to do this with a square reservoir design, which created a unique independent blending process for the radiators.

He found that the water temperature entering a radiator usually changes by 7 or 8°C with every boiler cycle. The water inside the radiator also fluctuates in a pulsating manner by 4 to 5°C every 5 seconds.

With Oxyvent, water enters the radiator at 52°C and leaves the radiator at 50°C. The temperature across the complete radiator panel is then a static 51°C.  This indicates that the Oxyvent 2°C Delta T, changes radiators from producing convection heat to radiant heat.

Radiant heat gives you that nice snug feeling of deep intense warmth, similar to a stove or open fire. It is also scientifically proven to improve the comfort factor of your home by 30% and we have thousands of customers to verify this.

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Underfloor Heating

Underfloor Heating cannot operate efficiently unless the delta T is reduced

When installing the underfloor loops keep the lengths 100m or less. Do not over load the manifolds with too many loops. Get your installer to put in an extra set of manifolds if that is the situation. This is very important as once the loops are in place they cannot be changed. Please contact Oxyvent if you need further advice on this. Once the loops are laid correctly any problem that arise afterwards can easily be addressed over ground.
Insist that there is a flow rate of 3 to 4 Litres per minute through each loop in your Underfloor heating system. Do not settle for anything less.
By using the Oxyvent system your underfloor heating will never again air lock and the need for flushing is eliminated saving you on regular maintenance. The heat up time will be reduced by 50%. The floor will heat at a more even temperature, no more hot and cold patches on the floor.

Delta T
It is a proven fact that a Low delta T between the underfloor pipes and concreate floors allows a greater heat transfer. The heat up time is twice as fast. The floor temperatures are uniform due to stable smooth heat transfer. The floors are cooler to the touch and the room temperatures are high.

 

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Balancing Radiators

At Oxyvent we feel that balancing radiators was not a good task as basically you are closing down a radiator that is heating perfectly well in order to heat another poorly operating radiator down the line. It is obvious that all radiators should be fully open and allowed to heat complete, this cannot be achieved without the Oxyvent Tank.  Even at a boiler setting of 60°C the Oxyvent Tank moves the water fast through the heating system, heating all radiators complete at a well-balanced temperature.  This allows the radiator to produce more radiant heat as opposed to convection heat without the Oxyvent, keeping the heat at ground level where it is needed most, and significantly reducing fuel bills.

Watch this video link to see what balancing is.  http://bit.ly/1Ca8ULj

 

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Boiler Temperature

Most people set their boilers at a high temperature setting in order to obtain a comfortable heat level throughout the dwelling. When the Oxyvent System is installed the boiler temperature can be reduced to 60°C without sacrificing your comfort. This is achieved by reducing the inlet and outlet temperature of the radiator to product more radiant heat. Keeping the heat at ground level.

Please see attached video link http://bit.ly/1M6cyOc

 

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Air in Radiators

Where do the air come from and how do it get into your radiators? The air is formed in the boiler when temperatures reach 60°C or over. The micro bubbles in the water travels out along the pipes and accumulate in the pipework and radiators. The air prevents the radiators from operating and will require bleeding to remove the trapped air. The trapped air in the pipework cannot be removed. This will slow down the flow of water going to the radiators leading to huge inefficiencies.
The Oxyvent Tank unique design capture the micro air bubbles at source and holds them in a chamber. The trapped air is released from the chamber when the system is shut down.
This results in air free water travelling through your heating system with some amazing results, moving the water faster through the system, returning to the boiler at a higher temperature and allowing the heating system to perform to its ultimate, saving fuel which means more money in your pocket and more heat in your home.

Phone 064 7754449 or email info@oxyvent.com

 

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Thermostatic Radiator Valves

The purpose of Thermostatic Radiator Valves is to control the temperature of individual rooms, and when the room reach the required temperature the valve should shut off the heat from that radiator and allow the heat to go to other rooms.  In most homes the problem is that only a couple of rooms, the first ones on the heating line switch off but the rest of the rooms do not reach the required temperature, therefore the Thermostatic Radiator Valve never switch off no matter how long you operate your heating for. In order to get all the Thermostatic Radiator Valves to operate efficiently, you need to have the top and bottom of the radiators heating.  If the bottom section of some of your radiators are cold then your Thermostatic Valves will not function correctly.

For further information Phone 064 7754449 or email info@oxyvent.com

 

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