Hot Water Heater Vs Gas Furnace: Which One Is More Energy Efficient?

A lot of people do not know much about the boiler and furnace underneath of their houses other than that it makes sure that their houses are delightful when the weather changes and hopes for the best, but do not fully understand that two home heating systems are lost opportunities.

Understanding and knowing the ins and outs of boiler versus furnace can help people make a better decision when it comes to which one is best for your house energy needs, which one can help you budget your energy cost a lot better. There is a big difference between furnaces and boilers when it comes to energy efficiency. Now, let us start with the fundamental question, “How a boiler versus furnace works?”

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How Do Boilers Work?

Boilers heat the water in your house. The water is turned into hot water or steam. The steam then moves through the pipes into the rest of your home and they are dispersed through the radiators. The hot water version moves the water through a baseboard radiator or a radiant floor system, or they heat the air through the coil. It runs on different energy sources that include oil, natural gas, wood or electricity.

How Do Furnaces Work?

A furnace heats the air. The heat is then distributed through your house’s duct system using a blower. After that, the hot air is released to the room through a register or vent on the floor, ceiling or wall. They are also known as a warm air heating system and can run on natural gas, oil, propane or electricity. In newer or modern homes, they are much common compared to boilers because they cost a lot less. However, there are still pros and cons in using boilers and furnaces.

Water Heater

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Boilers pros and cons

They usually are more expensive compared to furnaces. Home improvement companies say that boilers, which are considered as difficult to install compared to furnaces, typically cost around $2,500 to $4,000 for mid-range models, while high-efficiency water heaters can cost around $5,000 to $10,000, installation included.

Gas, how water and steamers cost almost the same, but steam boilers can operate with less efficiency, so that is something people need to keep in mind if they are considering which kind of water steamer is best for their household energy needs. Removing the old boiler can range from $500 to $1,000, depending on the size and difficulty of the job (which is removing them from your basement). Here are some of the most basic pros and cons


It is more energy-efficient – Water boilers use less fuel to heat your house. It means that it has lower energy costs.

More consistent heat – they are usually a lot quieter compared to heaters since homeowners do not hear the sound of the hot air that was blowing.

Less maintenance – they don’t have filters that need to be cleaned on a regular basis.


Better quality of air – Since they do not blow air, they do not spread allergens or dust. They also do not dry out the air around the house as much as a blown hot air would.

Boiler Cons

It is slower to react – They take a lot longer to adjust to the thermostat change. It means that it will take longer for the homeowners to feel the temperature changes after turning the temperature up or down.

Harder to install – They are a lot more difficult to install compared to furnaces.

Converting them will be a challenge – Switching to furnaces from a heating system is close to impossible. Adding ductwork to pump air through the house can be cost-prohibitive. Not only that, they do not cool houses. So, if you are planning to put a centralized air conditioning to your home, it is best to stick with the duct and furnace system.

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Furnace Pros And Cons

When you are planning, whether you want to go with a burner or a furnace, the cost will matter. According to experts, the average price goes around $2,000 to $3,500. It includes the fee for installation. A high-efficiency model can cost at least $5,000, including the installation. To remove an old heater, the homeowner needs to spend at least $1,000, depending on the difficulty of the job and the size of the furnace.

Ultimately, the energy efficiency of houses can cost or save you money. Although you need to think about your boiler or heater when they are working just fine, it is very important to know how it works so that you know that you are doing the best you can to make your house run more efficiently. Performing the necessary maintenance on your boiler or furnace can help you save a lot of money, as well as headaches.