If you are planning to replace your old boiler, you should consider looking into the advantages and benefits of installing a condensing gas boiler. This new technology product is getting to be popular because of higher efficiency and more energy savings. These boilers are replacing the conventional ones. In the UK, all new gas central heating boilers fitted in England and Wales must be high efficiency condensing boilers with some exceptions since 2005.
What makes this type of Cv ketel vervangen unique and highly efficient? Its uniqueness and high efficiency are reflected in its capability to capture and recycle the latent heat energy released from a condensate flue gas through an additional heat exchanger. It reduces the amount of heat vapour that escapes and is lost from the flue. The boiler condenses the vapour back into the unit where it is heated and all of the trapped heats are re-used. The return water has to be below 140 F in order for flue gas to condense. Condensing boilers reuse this residual heat with the exhausted gas coming out at a low 55 degrees centigrade. This represents fuel savings because of the residual heat generated by the gases.
Many experts are concerned not only with the boiler’s high efficiency rating but in system efficiency. They opined that the energy efficiency can diminish with an improper installation. Sizing, piping and application are key factors that determine whether or not the gas condensing boiler will operate at its peak performance. Wrong system application can make the boiler less efficient. So, proper sizing and piping is very important. As the water temperature changes, so does the efficiency level. Boilers are rated according to AFUE standards. The hotter the water, the lower the efficiency dives. The cooler the water temperature, the higher the efficiency goes based on the standard return water and supply water temperatures. For the boiler to be in a condensing mode, the return water temperature must be below 55 degrees Celsius. Being in a condensing mode will make low temperature applications such as radiant floor setting a good match up.
There are other system factors to consider to maintain high efficiency performance by your gas condensing boiler. The amount of air space under your baseboard from the carpet can have an impact. The less distance between the baseboard and the carpet, the less heat you get off the radiation. The placement of your furnitures can block the airflow from under your dashboard. If this happens, the air won’t get heated and come out to the top. Even simple dust build up on the bottom side of the baseboard, improper placements of front cover and baseboard end caps can restrict air flow. The more air that is restricted, the less air will be used to heat your home.
If you decide to purchase a condensing gas boiler, look for some of these key features such as eligibility for tax credits or grants, AFUE rating of 94-96%, heat exchanger of stainless steel or aluminum-magnesium-silicon with helical finned to increase performance and prevent corrosion. It should have a modulating fan that provides air/gas. Its furnace uses air from outside the boiler room. The boiler should also be very quiet, with minimum emissions and easy to handle. Preferably, look for a model that maximizes combustion with a flame point downward mechanism. You must get at least a two year warranty. Look for a boiler with the American Society of Mechanical Engineers stamp to ensure that all safety standards are met. The price of a good condensing gas boiler is around $2,900 plus installation cost. It is a worthwhile investment because you can easily recoup your investment in just a few short years and cut down your fuel cost by as much as 20% a year. You may be entitled to some rebates from the power companies in your area.