What is a condensing boiler?

It seems as though Vermont Modular is talking about Energy Efficiency a lot!  Honestly, it is one of our favorite topics.  As a responsible Vermont company, we actively try to promote what will help our environment the most.

Today let’s talk about Condensing Boiler.  First, just a tiny bit about terminology;

  • boiler is an appliance that makes hot water
  • a furnace which makes hot air.

Either a boiler or a furnace is primarily given the task of keeping your home warm in the winter either with hot water or hot air.  Today we are talking about only hot water Boilers and in particular a Condensing Boiler.

So, what are the major characteristics, advantages, and disadvantages of a condensing boiler?

  • Characteristics –
    • the vast majority of residential boilers are either fueled by gas or fuel oil
    • a condensing boiler is highly efficient, almost always greater than 90% efficient
    • the boiler condenses the vapor in the exhaust fumes and so recovers that latent heat that otherwise would be expelled and not used
    • The condensed vapor is drained away from the boiler
  • Advantages –
    • Less Fossil fuels are burned
    • Energy bills are lower
    • Environmental damage is significantly limited
    • Many countries in Europe require Condensing Boilers to protect the environment.  The less fossil fuel that is burned because of the high efficiency the less Green House Gas is emitted into the atmosphere
    • Typically, a condensing boiler is 10-12% more efficient
  • Disadvantages –
    • None that we know of

What are your thoughts?  Do you think that either Vermont or the U.S. Governments should step in and require the use of Condensing Boilers?

What are your thoughts?

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