The Clean Air Act Blog: Posts Tagged ‘Heating Installation’

What AFUE Means and How It Affects You

Tuesday, November 5th, 2013

If you’re in the market for a new heating system or are taking a new interest in your current one, you’ll run across a slew of confusing acronyms. There’s one in particular you will see more than others: AFUE. On the cabinet of a gas-powered furnace you might read: “AFUE rating = 92%” What does this mean? Is it important to know?

We’ll explain AFUE in this post. To answer the second question first, yes, it’s important for you to know what AFUE stands for and what it means. This rating is key to understanding how energy-efficient a heater is and what you might expect to see on your heating bills.

For more information, as well as quality heating installation service in Beavercreek, OR, turn to Clean Air Act.

“Annual Fuel Utilization Efficiency”

AFUE is an acronym for “annual fuel utilization efficiency.” It’s a thermal efficiency rating that ranks how much heating power a heater returns from the fuel it uses, expressed as a percentage. (Air conditioners have a similar rating, SEER—seasonal energy efficiency rating—which is expressed as a ratio instead of a percentage.) It isn’t a “true” thermal efficiency rating, since it determines the heater’s efficiency over a long term instead of during steady-state, peak performance. It’s a number for consumers, not engineers.

An AFUE rating indicates the amount of heating power—measured in BTUs (British Thermal Units)—a heating system returns for every 100 BTUs of power it consumes. For example, if an oil boiler burned 100 units of oil and provided 80 units of heat, it would have an AFUE rating of 80%. The higher the percentage, the more completely the heater converts its fuel source into heat.

Why this is important

If you want to conserve energy and save money on your heating bill, a heater’s AFUE rating is one of the main aspects to consider.

Modern heaters score high AFUE ratings. The Department of Energy requires that all furnaces sold in the US must have an AFUE of at least 78%—and furnaces score higher than that. A top-of-the-line gas furnace can reach an AFUE rating of 96%. Boilers also are required to have high AFUE ratings, and most score above 85%. (Boilers in general are more efficient than furnaces.) To help you grasp these efficiency levels, consider that the AFUE of burning conventional firewood is a mere 45% to 55%.

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However, you shouldn’t simply pick the heating system with the highest AFUE rating. Aside from its increased cost, a heater with a high AFUE may not do the best job for your home, no matter its efficiency, if your house has less effective insulation or other specific requirements that make it harder to heat. This is why you should rely on professional advice and installation when it comes to heating your home. Contact Clean Air Act for assistance on making this important choice: AFUE is important, but it isn’t everything when it comes to heating in Beavercreek, OR.

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Which type of heating system is right for your home?

Monday, January 21st, 2013

Here in Portland, having a good heating system is absolutely critical to your comfort. But which heating system is right for your home? At Clean Air Act, we’ve been providing complete Portland heating services for many years. We thought it would be helpful if we put together a quick list of some of the heating services and products that are available in the greater Portland metropolitan area. Contact Clean Air Act today!

Traditional Heating Systems: Furnaces vs. Boilers

Furnaces and boilers are two of the most popular and common heating systems in the entire country. They provide relatively cheap heating and, if your unit is less than 5 years old, it probably is fairly efficient. Whenever you need any kind of heating services, it’s always best to call a local contractor. Getting professional heating installation in Portland is the best ways to make sure that your furnace or boiler work well for many years.

Geothermal Heating and Air Conditioning Systems

For those that are interested in renewable energy, geothermal systems are a great way to heat your home using the energy that is stored in the ground. Geothermal systems use an underground loop to gather heat from the earth and heat your home. Like your central air conditioning system that moves heat from inside your home to the outside—geothermal systems work in reverse by bringing heat from the ground into your home. They can also be used to cool your home very efficiently as well.

High Velocity Systems

High velocity systems are another great option for homeowners in Portland, OR. These types of systems don’t need large, cumbersome ductwork. Instead, high velocity systems use small tubes that can fit between walls and under floorboards. They deliver high velocity heated and cooled air to each of your rooms. The high velocity of the air allows these systems to evenly distribute the air throughout your entire home.

If you have any questions about heating installation or heating repairs in Portland, contact Clean Air Act today!

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Why AFUE Ratings Matter For Your Heating Installation

Wednesday, January 18th, 2012

When you are in the market for a new furnace for your Newberg home, there are several reasons you should pay attention to the annual fuel utilization efficiency (AFUE) rating. All newer model furnaces get an AFUE percentage, which measures how much fuel a particular model converts into heat. Furnaces with higher AFUE ratings are more efficient, but the size and type of furnace will also factor into how much you’ll save on energy costs.

Understanding the AFUE Ratio

The minimum AFUE rating for new furnaces is 78%. This means that seventy-eight percent of the fuel is turned into heat, and the remaining percentage is lost either through poor insulation, air leaks, or the ventilation system in the home. Because there’s no heat loss through a chimney flue, some all-electric furnaces can have an AFUE rating as high as 98%. However, if the cost of electricity used to meet your normal heating needs is higher than the efficiency savings, you may want to consider other options. Talk to a qualified HVAC contractor for advice about the most cost-efficient heater for your home.

Furnace Efficiency Features

Furnaces manufactured 15-20 years ago have significantly lower AFUE ratings (between 55%-70% for most older models) because they are typically single-stage, or single-speed systems. Single-stage furnaces are less efficient because they are designed to cycle on at full capacity and shut off when the desired temperature is met.  Newer, two-speed models have a second setting that runs consistently at a lower speed, which saves energy by burning less fuel. Multispeed furnaces that have variable-speed blowers are the most efficient because they operate at various levels and automatically adjust to the thermostat to maintain a constant temperature.

If you look at the AFUE ratings for multispeed and variable-speed furnaces, the ratios should be above 80%. Keep in mind that this only determines the efficiency levels for the furnace itself. You’ll need to factor in whether or not your home has proper insulation and other upgrades, such as double-paned windows and doors.

Call The Clean Air Act Inc. to speak with one of our qualified HVAC technicians about a furnace upgrade for your Newberg home.

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Comparing High-Efficiency and Mid-Efficiency Furnaces

Friday, January 13th, 2012

Whenever you are in the market for a new furnace for your Hubbard home, there are many models to choose from.  Many of the furnaces manufactured within the last few years are high-efficiency furnaces with a high AFUE rating (AFUE measures the amount of fuel the furnace converts into heat). When people refer to a mid-efficiency furnace, they are usually talking about older furnaces.

Single-stage furnaces were considered to be an efficient heating system when they were manufactured, but compared to newer furnaces, they use up a lot more energy than they need to. Single-speed furnaces are designed to run at full capacity until the temperature inside the home reaches the thermostat setting. After they shut off, the home not only loses heat, but the furnace will also take longer and burn more fuel when it cycles on again.

Newer, two-speed and multispeed models run consistently at lower speeds, and the ones with variable-speed blowers are even more efficient because they can operate at various levels. These models will also automatically adjust to the thermostat to maintain a constant temperature, which saves energy by keeping the home at a consistent temperature so that there’s little heat loss.

When shopping for a new furnace, keep in mind that the AFUE ratings for multispeed and variable-speed furnaces only determine the efficiency of the actual furnace. If you are upgrading your old, mid-efficiency furnace to a high-efficiency furnace, you should make sure that your Hubbard home is properly insulated and sealed.  You could also consider upgrading any older doors and windows to more efficient double-paned ones, or you can also install storm doors and windows.

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Most Commonly Asked Questions About Heat Pumps

Monday, November 28th, 2011

If you’re thinking about buying a new heat pump for your Gresham home, chances are you have some questions about these types of products and how they work. In fact, because these types of home comfort systems are relatively new to a lot of people, there are a quite a few misconceptions out there about how effective and efficient they can be.

Recently we’ve gotten some good questions from our readers, so we thought we’d like to pass along the answers so that others can benefit from the information as well.

If I Buy a Heat Pump, Do I Have to Buy an Air Conditioner Too?

That heat pumps are only able to heat your home is probably one of the biggest misconceptions about this type of equipment. Heat pumps work by extracting heat from the air in one place and transferring it to another. That means that in the winter, your heat pump is able to heat your home by taking heat from the outdoor air and moving it inside.

However, in the summer, the heat pump is able to do the same thing only in reverse. When you switch on your heat pump’s cooling function, it will be able to take the heat out of your indoor air and transfer it outside. In this way, the same heat pump system can keep your home warm in the winter and cool in the summer without you needing to purchase an air conditioner or other supplemental comfort systems.

If I Choose a Heat Pump System, Will I Also Need to Install Supplemental Heat?

That depends on what the climate is like where you live and how warm you like to keep your home. In general, heat pumps can keep any home comfortable as long as the outdoor temperature is above 32°F or so. If the temperature outside drops below that, you may want to have some type of supplemental heating system just in case. However, a heat pump will still be able to provide some warmth at these lower temperatures and you may be able to keep yourself comfortable with a simple space heater or two.

Also, remember that these colder temperatures are most common at night when you would probably have turned your heat down anyway. As long as you live in a relatively moderate climate, heat pumps can do a great job of keeping your home comfortable all year long.

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What Is Geothermal Heating?

Wednesday, November 16th, 2011

Having a geothermal heating system installed in your Hubbard home means that you will actually be able to heat your home with heat extracted from the ground. If this sounds a bit preposterous to you, you are certainly not alone. But this type of home heating does actually work and the technology is not actually that much different from what is used in a standard heat pump system.

Regular heat pumps are able to remove heat from the outdoor air and transfer it into your house to maintain a comfortable temperature in the winter. You may think that there is no heat in the outdoor air in the winter, but that is not actually the case.

Air contains a substantial amount of heat even at very cold temperatures, and heat pumps are able to work quite well, particularly when the outdoor temperature is above freezing. Conveniently, the same process used to heat your house in the winter can be reversed in the summer to extract heat from the indoor air, providing you with a year round home comfort solution.

Geothermal heating works in much the same way, except that geothermal heat pumps extract heat from the ground rather than the air. In order to accomplish this, a loop of pipes is installed in the ground near your house and your geothermal heating system will pump a liquid, generally either antifreeze or water, through those pipes.

As it passes through the pipes, the liquid will absorb heat from the ground and carry it back to a heat exchanger within your house. At that point, the heat from the liquid will be released into air, which is then blown throughout your house.

And just as conventional heat pumps can cool your house in the summer by removing heat and pumping it outside, so too can geothermal heating systems. They do this simply by letting the liquid flowing through the pipes absorb the heat from inside air and then release it into the ground as it travels through the pipe loop below your house.

Because the ground is never as cold in the winter or as hot in the summer as the air, geothermal heat pumps are actually able to work effectively in more extreme conditions than many traditional heat pumps. However, because they require an entire system of pipes to be installed underground, they can be quite a bit more expensive initially as well.

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Should I get a space heater or upgrade my heating system?

Monday, November 7th, 2011

If your heating system isn’t really cutting it in your Molalla home anymore, it may be time to take a step back and consider what your options are. After all, upgrading to an entirely new heating system is a big investment and a large project that will likely disrupt your life at least for a short period of time. However, under certain circumstances it’s the best alternative out there.

One option to consider when you’re unhappy with your home heating situation is supplementing your central heating system with space heaters. These are generally inexpensive and can be placed virtually anywhere in your house or taken with you from one room to another.

Especially if there is a small part of your home that your heating system just doesn’t seem to reach or that you want to keep a bit warmer than the rest of the house, space heaters can be an excellent option. They’re small, safe and portable and can easily keep a smaller portion of your home or room cozy and warm.

However, you’ll have to take into account the operating costs of a space heater as well as the initial investment when you’re trying to evaluate the overall cost effectiveness of this option. Most space heaters run on electricity, which often costs considerably more than oil or natural gas. If your home heating system runs on electricity anyway, this might not be so much of a factor. But if you have an oil or gas furnace, you could wind up paying significantly more to run space heaters as supplemental heat over time.

Also, it’s worth considering that new home heating systems are likely much more energy efficient than the system you currently have in place. Although the initial installation cost can be pretty substantial, you’ll wind up saving a very large amount on your monthly heating bills by upgrading to a newer model.

Plus, you’ll be getting a system that should be able to satisfactorily heat your home without the need for space heaters or other supplemental heat sources. This translates into a pretty hefty savings over time and that’s something you’ll certainly have to take into consideration when you’re evaluating your options.

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Furnaces vs. Heat Pumps

Monday, October 10th, 2011

If you’re preparing to replace your existing heating system in Cornelius, you may very well be struggling with the question of whether to go with a furnace or a heat pump for all of your future home heating needs. Each of these systems have their own advantages and drawbacks, and once you’ve narrowed it down to one type or the other, you’ll still have a pretty wide variety of products to choose from.

Furnaces are still the most popular type of home heating equipment on the market. You can get furnaces that run on gas, oil or electricity, although gas furnaces are by far the most common type of furnace around these days. The latest models are extremely energy efficient, with AFUE ratings reaching into the high 90%s.

Like heat pumps, furnaces use ducts to transfer heated air throughout your home. They typically require regular maintenance once every year or two depending on the type of furnace you have, and they can be expected to last anywhere from 15 to 25 years when properly maintained. Most modern furnaces are also made to be compatible with a central air conditioning or cooling system as well.

Heat pumps, on the other hand, don’t generate the heat that they circulate throughout your house. Instead they are able to extract the heat from the air outside and pump it inside. This means that they use much less energy than even the most energy efficient furnaces.

However, heat pumps are only capable of heating your house comfortably when the outside temperature is above freezing. If you live in an area with particularly long and frigid winters, you’ll probably find that you need to supplement your heat pump with another heat source. Because of this, it actually makes little sense to use a heat pump in more extreme climates.

On the other hand, if you live in an area with relatively mild winters, heat pumps can be a great option. They provide a constant flow of warm air to all parts of your home and can also keep you house cool during hot summer months. To cool your home, heat pumps simply reverse the process they use to warm it. They take the heat out of your indoor air and pump it outside. This is a very effective home cooling method and makes heat pumps a great solution for year round comfort.

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