When it gets colder out, most homes start to rely more and more on that big tank of water pumping out heat: your boiler. Maybe itís tucked away in a tight closet, or maybe itís out for all to see in your laundry room or basement. Either way, thereís no doubt itís getting more use now, so itís not a bad idea to get it inspected by a technician before you canít go a day without it. While that boiler is chugging away, what exactly is it doing?†In this article, weíll talk about the various parts of a boiler system and how they all work together to bring comfort to your home, office, or other building structure. While weíre at it, weíll throw in a few tips on how you can increase energy efficiency and save some money this winter.†Maybe you can use that money to take on that bathroom remodeling project youíve been waiting on.†Or maybe you could buy a nice coat and stay warm outside too!†Itís always good to get some fresh airÖ So What is a Boiler? So first off, letís come up with a simple, yet specific description of a boiler: A boiler is a closed tank in which water is heated under pressure.†This pressure is created just by the fact that the tank is completely closed and is helpful for easing pumping and driving up temperatures. How does a hot tank of pressurized water help heat our homes?†To answer that, letís explore what other parts there are in a boiler and how they work together to create a complete heating system.