Curious Questions About Residential Boiler Systems

1 January 2019
 Categories: , Blog


Once relied on just as much as wood stoves, residential boiler systems have recently been making a comeback in the world of home heating systems. If you are in the process of picking a new heating system for your home, the idea of installing a boiler system could very well come up. If it does, you are bound to find some curiosities floating around in your mind. Take a look at some of the most common curiosities about traditional residential boiler systems and the answers you should know before you decide if this is the best heating choice for your home. 

Do boilers really boil the water inside the holding tank?

Boilers don't actually boil the water that they have in the holding tank. The water is heated, but only to a degree that the water releases steam for steam-powered systems and to a lower degree for systems that pump hot water through radiant lines. As anyone knows who has ever placed a pan of water on the stove, steam is released far before the water ever boils and water gets piping hot even before it starts to release steam. 

Do boiler systems increase humidity levels in the home?

Since boiler systems utilize water to generate heat for your home, it is only natural to question if this would change the humidity levels inside the house. However, this is just an assumption; boiler units don't raise or lower the humidity levels inside the house. The water that is used is encapsulated in the boiler tank and radiator lines, so moisture ever actually leaks out into the air in the house to cause a spike in humidity levels. The only reason you would have an issue is if there is a leak in the boiler system and moisture or steam is escaping. 

Wouldn't boiler units use a lot of energy?

Because water in a boiler unit has to be kept hot just like it does in a hot water heater, a lot of people assume that these units must be expensive to operate, but truly they are not. Most modern boilers are just as efficient, or even more efficient, than a furnace or forced air system. Boilers deliver heat to the home without an electrical or gas-powered fan to push the heat, which means it an economical solution. Plus, boiler units can actually serve the dual function of providing your home with hot water and heat, so there is also a savings advantage in that respect. 

Contact a heating contractor for more help.