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There are many considerations to take into account when choosing a boiler for your home. A crucial factor to think about is what size, or output, is best for your living space. Below is a guide to figure out what size boiler you need in your home to keep it warm and comfortable. 

Why Does Boiler Size Matter?

A boiler is a device that turns water into steam that is then used to heat water or other parts of a building or home. “Boiler size” is a way to describe how much heat a boiler creates in BTUs, or British Thermal Units, and not the physical size of the boiler. 

The ideal boiler size, or heat output, can be calculated using a variety of factors, including the square footage of your home, your geographical location, your current heating system, and the age of your home. Heat loss value, or the amount of heat your home loses in any period of time, must also be taken into account. If your home loses a large amount of heat regularly, which is common in poorly insulated homes, you will need a larger boiler size to compensate. 

How Is Boiler Heat Measured?

boilerBoiler heat, or capacity, is measured in BTUs, or British Thermal Units. This stands for the amount of energy needed to increase the temperature of one pound of water by one degree Fahrenheit. Generally, you’ll need about 50 BTU per square foot in colder climates and 20 BTU per square foot in warmer climates. 

The heat output and the physical size of your boiler do not necessarily correspond with each other. For example, a boiler that generates 50 BTU per square foot could be smaller in physical size than a boiler that generates 20 BTU per square foot. The most important factor when purchasing a boiler is the BTU capacity, but you also need to take into account the physical measurements of a boiler to make sure it fits in the space you want it to be installed. 

How Do I Determine the Right Boiler Size for Me?

Determining the correct boiler size for your space comes down to aligning the boiler’s heat output with all your home’s heating needs, such as hot water, appliances, and electric heaters. You should also choose a boiler with a venting system that fits well with your home. If you have a chimney, consider a chimney-vented boiler that sends exhaust through the chimney. Power-boilers and direct-vent boilers send exhaust through the roof or wall vents with the use of fans and can only be installed in open rooms with plenty of ventilation. The easiest and most reliable way to properly size a new boiler is by hiring a professional contractor to conduct an in-person survey of your home.

 

If you are experiencing issues with your boiler, turn to Gary’s Repair and Burner Service in Ester, AK. This contracting company has been offering boiler and furnace repair services for all makes and models for over 30 years. Visit them online to learn more about their services or call (907) 474-0736 to schedule an appointment.

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