There are different types of heating systems in buildings. The two most commonly used systems are boilers and furnaces. While both provide heated air to keep you comfortable and protected from the outdoor temperatures, they are quite different in how they operate. In this blog, we compare boilers and furnaces to understand how they work, their pros and cons, and key considerations for choosing the right heating system for your needs. How Boilers Work In a boiler, the thermostat senses a drop in temperature and activates the boiler. The boiler heats water, and the hot water or steam gets circulated through piping and radiator circuits. Once cooled, the hot water or steam converts back to water. This process is repeated continuously until the desired room temperature is reached. Different boilers use a specific fuel type to perform this process. The most commonly used fuel is oil and gas. How Furnaces Work The heating cycle of the furnace starts when the temperature drops below the set thermostat settings. While modern furnaces use an electronic ignition system, other models use a standing pilot. Once the burner is ignited, the fuel is added to the combustion chamber, allowing the burner to heat air. A heat exchanger and blower fan distribute warm air from the furnace through the air duct system into the rooms. The exhaust gasses are vented out through a chimney or other outlets. Comparison of Boiler and Furnace Fuel Sources Boilers heat water, while furnaces heat air. However, the differences are far more complex than that. Boilers and furnaces can use oil, natural gas, wood, propane, and other types of fuel sources depending on the type of system. Each fuel has its advantages and disadvantages, including cost and availability, so you must consider what is feasible for you. If you are getting a new furnace or boiler heating system, you also need to consider the fuel type to ensure it suits your needs. Generally, electricity and natural gas are the two most commonly used fuels for heating systems, but this could be different based on where you live, the type of system you have, and other factors. Pros and Cons of Boilers One of the key advantages of boilers is...
Read MoreThe boiler is the heart of the system for keeping spaces warm and comfortable, but like any appliance, it experiences wear and tear. Here are some tips for extending its lifespan after you’ve had a boiler installed and signs that indicate it might be time for a replacement Factors that Impact Boiler Lifespan Routine maintenance and boiler service extend the life of your boiler system. Typical boiler care involves cleaning the heat pumps, inspecting and replacing worn parts, testing safety controls, and ensuring proper water chemistry. The quality of the water circulating through your boiler can significantly affect its lifespan. Hard water with a high mineral content can cause scaling and corrosion, which can make the boiler’s mechanical parts fail. Proper water treatment helps mitigate these issues. Over-firing, cycling on and off frequently, or operating at excessively high or low temperatures can accelerate damage. A boiler and heating system that undergoes frequent turning on and off to meet varying heating demands, may experience increased wear on components. Exposure to moisture, temperature extremes, and corrosive atmospheres can impact the longevity of your boiler. Installing weatherproof enclosures or corrosion-resistant materials can help mitigate these risks. A high-quality, well-built boiler is likely to last longer than a lower-quality model. Additionally, newer, more efficient boiler designs may offer improved longevity compared to older, less efficient models. Basic Life Expectancy Estimates How long does a boiler last? Boiler longevity can vary depending on the type of boiler, the installation method, and how well it’s maintained. Traditional cast iron boilers are known for their durability and longevity. With the right care, they’ll provide reliable heating for more than 30 years. Steel boilers are typically less expensive than cast iron boilers but may have shorter lifespans. With proper maintenance, a steel boiler can last more than 25 years. Condensing boilers are high-efficiency gas boilers that offer significant energy savings and have an average lifespan of more than 25 years. Water quality and proper annual maintenance are key contributors to the service life of a condensing boiler. The service life of combustion gas boilers can vary depending on fuel quality, maintenance, and proper ventilation, but on average they last anywhere between 15-25 years. When is it Time...
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