They weigh a lot more than a standard and much more than a combi boiler. What size condensing boiler do I need? What temperature should a non condensing boiler be set at? Do not set it lower than this as you could increase the risk of contracting Legionnaires' disease.
Do boilers need to be on an outside wall? It should be positioned on or next to an outside wall because by regulation all new boilers installed in a property have to be condensing, which means they generate condensation and a discharge pipe is therefore necessary. How do you know if your boiler is condensing? You could check your boiler manual for reference to condensing or 'HE' in the title.
Check the flue terminal which is usually sticking out through an external wall near the boiler. If it is plastic and white steam comes out of it when the boiler is on then it is likely to be a condensing boiler. Are condensing boilers any good? A high-efficiency condensing boiler is a good choice if you're looking for a greener and more efficient boiler. This is because condensing boilers are able to make better use of the heat they generate from burning fuels, such as gas or oil.
A condensing boiler requires less heat from the burner, so is more efficient. Are condensing boiler fumes harmful? Which is better condensing or non condensing tankless water heaters? This can be costly to the homeowner, especially if placed inside a long chimney run.
LAARS: If maintained properly both condensing and non-condensing boilers can provide many years of efficient, reliable home heating. However, as a general statement, non-condensing boilers tend to have slightly longer life spans in the 20 year or longer range where condensing products typically have lifespans of 15 years or longer.
This, of course, is often dependent on site-specific run time and installation practices. However, condensing boilers can be compared to a high-performance vehicle that may need more attention at service time vs.
MH: You may have touched upon this in question 1, but is there a big difference in energy efficiency, savings and a reduction in carbon footprint? As with any boiler, the key to longevity is proper maintenance. Here a service tech performs a combustion analysis. LAARS: The less fuel consumed results in a lower carbon footprint and therefore a condensing boiler in general will result in a lower carbon footprint as compared to standard efficient boilers.
In addition to lower carbon footprint, NOX emissions pollutants are normally lower on modern condensing boilers, due to advanced burner technologies that optimize the combustion process. MH: In terms of initial and long-term costs, what is the investment in both units? However, the number may be higher or lower depending on the size of the home and thus boiler size, number of zones, and if major corrections need to be made to the piping in a replacement job.
Condensing units typically have lower fuel costs than mid-efficiency boilers over the life of each unit. However, non-condensing units tend to last a few years longer and have lower maintenance costs. These should be looked at when doing any ROI calculation. LAARS: Condensing boilers typically have a 10 to year heat exchanger warranty and 2 year parts coverage. You can research your options online. For example, you may find this article useful to help you decide what size of boiler you need for your home.
For extra information and advice, you can speak to a heating engineer. They will be able to advise you on your options and help you to make an informed decision. Welcome to Viessmann United Kingdom! It looks like you might not be in the UK? The products and services presented on this page may not be available in your country; find your local Viessmann website below.
Viessmann United States. Answer a few questions and find the heating system that's best for you. Find a product, get a quote. How to Bleed a Raditor. Watch the Video. Product Registration. Find a new boiler. Heating Advice. Homeowners Professionals. Can you still buy non-condensing boilers? The difference between condensing and non-condensing boilers When did this become law? Do all new boilers have to be condensing? Which new boiler is right for me?
What is the difference between condensing and non-condensing boilers? Looking to replace your gas boiler? Use our product finder tool. Get a free consultation on a new heating system. Get started. Which heating system is the best for you? Product Finder Tool. Why is my radiator cold - common problems and how to fix them How to bleed a radiator: 8 steps to save you money What temperature should a condensing boiler be set at? What to do if your boiler pressure is too high Can you install a heat pump in an existing home?
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