What is Delta T?

Oxyvent 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 11°C Delta T.

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

Oxyvent Delta-T
Existing Delta-T

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. (See the video above)

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.

Oxyvent comfort factor

Comfort factor for three scenarios.

What our customers have to say

  • “My central heating was not heating all of the rooms in my house even though my oil boiler was always set at maximum heat. I heard about Oxyvent and had it installed in 2002. Since the Oxyvent Tank was installed, I have had heat entering every radiator in the house and there is always a supply of hot water in the house. The Oxyvent Tank also reduced the amount of oil I used annually by around 40%. I would highly recommend this product to family and friends. Quite a few of my family and friends have had the Oxyvent Tank fitted in their houses and are extremely satisfied with the savings in fuel and the increase in heat in their houses.”

    Marie O’Leary, Co. Kerry

  • “We have the Oxyvent Tank for about ten years, before installing it we had radiators not heating all the way through, they were cold at the bottom throughout the house, even though they were cold we were burning quite a lot of oil, so we decided to have the Oxyvent Tank installed, the difference was amazing we had even heat throughout the house all of the radiators were heating and we were burning less oil, a saving of 30 to 35% I would say, so getting the Oxyvent Tank was a great idea still today 10 years later it is working as well as it did when it was first installed.”

    Sarah Stafford, Co. Kerry

  • “We are so delighted with the Oxyvent Tank since we got it installed in 2005. We have mighty heat from the radiators, and they are hot all over, different than before. Everyone that comes in remarks on the heat and are amazed when they see how low the boiler temperature is set. Prior to putting it in I would have the boiler temperature set high, it is now set to minimum. The Hot water in the tap is now boiling, a big difference from before. I had big savings in my oil bills over the years and I would like to wish you every success with the Oxyvent tank. IT’S A WONDERFUL PRODUCT!”

    Margaret, Tralee, Co. Kerry

  • “I installed the Oxyvent Tank in my oil fired heating system in 2008. Prior to installation I had a lot of trouble with air locks in my system. The Oxyvent Tank rectified this problem.

    Since installation my yearly oil consumption is significantly lower and thankfully my heating is a lot more efficient. I would confidently recommend this product without any hesitation.”

    Tom Browne, Co. Limerick

  • “I always had problems with my heating system and I had the Oxyvent Tank installed about ten years ago and since then all my radiators are heating properly and I did not have to vent them at all since. I am totally delighted with it and I would say that the fuel saving is in the region of 30% to 35%. Most of my family and friends have an Oxyvent installed at this stage and are completely delighted with it.”

    Kay Griffin, Co. Kerry

We answer your questions

August 07, 2020

How often were you given the same suggestions to fix radiators in rooms that don’t heat: Check for air in the system, Fit a larger pump, Check the water pressure, Check if the radiator valves are stuck, etc etc

July 11, 2020

Where Underfloor Heating is installed with a gas or oil boiler, hot and cold patches on the floor are quite common. It can get very uncomfortable when the floor overheats. What can we do about it?

June 04, 2020

People normally place their hand on the top section of the radiator to find out if their heating is operating properly. This is not the correct way to find out if your radiators are functioning efficiently.