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You are here: Home / Archives for Heating and Cooling

Heating and Cooling

Recall:American Flame Fireplaces to Replace Gas Valves Due to Fire and Explosion Hazards

May 21, 2008 By Appliance

Name of Product: Fireplace Gas Valves

Units: About 12,000

Manufacturer: American Flame Inc., of Fort Wayne, Ind.

Hazard: Gas can continue to flow into the fireplace pilot light area after the switch has been turned “off,” posing a fire or explosion hazard to consumers.

Incidents/Injuries: American Flame has received two reports of incidents involving valve failure and continuous gas flow. No injuries or fires have been reported.

 

Description: The recall involves American Flame AF-4000 series fireplace gas valves installed in residential fireplaces made by twelve manufacturers under the following brand names: Pacific Energy, Travis Industries, CFM Corporation, Canadian Heating Products, Portland Willamette, Rasmussen, Chimeneas de Columbia, Twin Eagles, FDM, Inca Metals (Savannah Heating), Even Temp, and Valley Comfort. The valves were installed in some but not all fireplaces. Date codes included in the recall include 0622 through 0718. The gas valve model number is located on a label on the bottom of each gas valve. The date code is located above the label.

Sold by: Fireplace retailers and distributors nationwide from September 2006 through July 2007 for between $500 and $2,000 for the fireplaces, with additional costs for installation.

Manufactured in: Taiwan

Remedy: Consumers should immediately stop using the recalled fireplaces and contact their dealer for a free repair. The repair involves replacing the fireplace’s valve if it leaks gas in the “off” position when tested by a qualified service technician.

Consumer Contact: For additional information, contact American Flame toll-free at (888) 672-8929 between 9 a.m. and 5 p.m. ET to determine if your fireplace is included in the recall and to arrange for a free repair, or visit the firm’s Web site at www.skytechsystem.com

 

 

Gas Valve DiagramAmerican Flame fireplace recall

Filed Under: Heating and Cooling, Household, News, Recalls Tagged With: American fireplace recall, gas fireplace recall

Is it Time to Replace Your Old Appliances?

May 21, 2008 By NightOwl

If you’ve been thinking about whether it is time to replace your aging appliances, or if you are wondering whether you could be saving the big bucks in energy costs if you had an all new suite of kitchen appliances,  Alina Tugend at the New York Times has some thoughts to share.

One of the first thoughts I have about replacing an older, working appliance that whether “besides the money, is this really a good idea environmentally, to get rid of an appliance that is operating just fine to buy another one, even if it does have better energy standards?”

“It takes energy to make a product,” said Noah Horowitz, senior scientist at the Natural Resources Defense Council. “You don’t want to replace perfectly good products.”

He gave his rule of thumb for refrigerators.

“If it’s avocado or brown-colored, it’s time to retire it,” he said. Refrigerators from the 1970s, the last time I believe those particular appliance colors were in vogue, use three to four times the power of today’s models.

A spokeswoman from the Environmental Protection Agency, which oversees the Energy Star program along with the Department of Energy,says that, generally, any appliance over 15 years old probably should be put out to pasture. The good news is that about 80 percent of a refrigerator or a clothes washer is recyclable.

Getting rid of an old appliance “is not without some environmental impact, but because so much can be recycled and reused, if you have a guzzler, you’re better off sending it to the landfill,” said Jennifer Amann, a senior associate at the nonprofit American Council for an Energy-Efficient Economy.

Try to find a place that will pick up your old refrigerator for recycling, either the company you are buying your new one from or see if your state or local government has a recycling program.

Even if they are brought to the landfill, Ms. Amann says, most of the appliances’ parts are then recycled, because they take up too much space.

What environmentalists do not want you to do is place the old one in the garage to hold two six-packs of beer. If you really need it, Mr. Horowitz suggested, leave it unplugged until, say, holiday time when you need the extra space for those pumpkin pies.

And do not resell it. Retiring the energy-inefficient model is the best thing to do.

Clothes washers and dishwashers have pretty much the same criteria as refrigerators — they have become much more energy-efficient. So if yours is inching toward 15 years, consider replacing it.

For clothes washers, the new front-loader models use much less water and spin clothes dry much more thoroughly, so you are spending less time — and power — drying.

I also learned something interesting about washing dishes. Unless you are an extremely frugal hand dishwasher, you are certainly using more water hand-washing dishes than a dishwasher does, Ms. Amann said. And with a newer model, do not even pre-rinse by hand.

“A good dishwasher can use just four to seven gallons of water to wash a full load of dishes,” she said. If you do not have a full load, but are afraid the food will get stuck on, a good feature is rinse and hold, which uses less than a gallon of water.

 

Although clothes dryers are big energy suckers, there is not much that can be done to make them less wasteful. So just hang onto yours until it gives up the ghost. One good feature of newer models is a moisture sensor, so the dryer stops when clothes are dry.

The federal government does not issue Energy Stars for dryers, because there is not much difference in energy use among the models.

As we move toward summer, it is a good time to replace an ailing central air-conditioner. New federal standards just started two years ago. But if you are keeping your old one, check to see if the ducts are leaking. You can waste about 30 percent of energy through leaking ducts, Mr. Horowitz said.

Window-box air-conditioners  are inexpensive enough that it is worth swapping an old one for an Energy Star model. The more recent ones also have a thermostat that will shut off the air-conditioner when the room gets cool enough. Sometimes the local utility company will pick up old boxes through an “early retirement program.”

So if you are planning to use that window air conditioner to keep cool this summer, check its age.  You might want to add it to the list along with the new suite.

Filed Under: choosing a Kitchen Appliance, Dishwasher, Dryers, Features, Heating and Cooling, Kitchen, Laundry, Refrigerators and Freezers Tagged With: energy saving appliances, energy standards, environmentally sound appliances, green appliances, new appliances, old appliances, old dishwasher, old refrigerator, old washer, replacing old appliances, saving energy

Basic Appliance Care and Safety

May 14, 2008 By NightOwl

If you are lucky, you rarely need to pay much attention to the appliances that run, some of them 24 hours a day, in your home. But to keep everything trouble free, it’s good to follow some basic guidelines for care and safety when using or installing appliances in your home. Handymanclub.com offers some simples steps for use with your washer, dryer, refrigerator, ranges, cooktops, even your water heater.

Ventilation and combustion (dryers, water heaters, ranges and cooktops)
• Clean the clothes dryer’s lint filter before or after each load. Check behind the dryer for trapped lint. Clear lint from the exterior vent often. Lint buildup results in inefficiency and excessive wear and can even pose a fire hazard. According to the Consumer Product Safety Commission (CPSC), an estimated 15,500 fires each year are associated with clothes dryers.
• Use only metal ducting for gas dryers because they run hotter than electric machines. Rigid rather than accordion-pleated ducting is best for airflow.
• Never vent clothes dryers or water heaters into the house to supplement heating.

Plumbing (washers, refrigerators and water heaters)
• To prevent leaky or bursting waterlines, check washing machine hoses for signs of wear. Consider replacing rubber hoses with newer braided stainless steel hoses.
• Check the screens at either end of the water hoses and remove sediment that may have collected there. This is especially important after road construction or water-main work has been done in your area.
• Periodically check that the washing machine is soundly footed and level so the hoses and the drain hose do not come loose.
• If a dishwasher’s tub doesn’t empty after operation, detach the drain line from the household drain and clean any debris from the line.

Gas (dryers, ranges and water heaters)
• Never use an oven as a room heater — combustion pollutants resulting from fuel-burning appliances can cause illness or death. Have gas appliances serviced periodically to ensure they burn with the proper mix of air and fuel.
• Be sure all vented appliances are checked for backdrafting. (This is one reason that it’s important for a city building official to inspect newly installed vented appliances.)

Electric
• Diehard DIYers may bristle at this warning from the CPSC — nonetheless, it’s a lifesaver. Never attempt to repair a microwave oven — because they use high-voltage power, they can pose a risk of electrical shock even after they are disconnected from the power source.
• Use dedicated circuits for large appliances such as washers and dryers.
• Keep appliance cords away from hot surfaces.

Filed Under: Dishwasher, Dryers, Features, Gas Range, Heating and Cooling, Household, Kitchen, Laundry, Microwave Oven, Oven, Parts/Repairs, Ranges Ovens and Cooktops, Refrigerators and Freezers, Safety, Washing Machine, _ Tips Tagged With: appliance, appliance safety, appliance tips, appliances, basic appliance safety, dryer, dryer safety, electrical, installation tips, microwave, Microwave Oven, microwave safety, Oven, range, range safety, refrigerator tips, washer, washer safety, water heater

Get Maximum Energy Efficiency from Your Cooling System

April 30, 2008 By NightOwl

The Air-Conditioning  and Refrigeration Institute (ARI) is the trade association representing manufacturers of more than 90 percent of the air conditioning and commercial refrigeration equipment installed in North America.  They offer their advice on how save money and energy while using your heat and air at home.

A typical home cooling system has two parts: an outdoor condensing unit and an indoor evaporating unit, usually near the furnace,” said Stephen Yurek, president of the Air-Conditioning, Heating, and Refrigeration Institute, the trade association that independently certifies the efficiency of home heating and cooling equipment. “The outdoor and indoor units are designed to work together. When the air conditioner is properly matched with a furnace or air handler, you get maximum efficiency and longer system life.

“Manufacturers report that a growing number of homeowners are only replacing the broken unit of their two-part system,” said Yurek. “These unknowing homeowners are going to experience several major problems with their systems because new equipment has been designed differently to achieve the 30 percent increase in efficiency and to use the new refrigerants.”

It is important for homeowners to know that Jan. 23, 2006 marked the beginning of a new era in home comfort, when the new federal minimum efficiency standard for central air conditioners and heat pumps increased from 10 SEER to 13 SEER. SEER is short for Seasonal Energy Efficiency Ratio. It’s a number similar to miles-per-gallon in automobiles, so the higher the SEER, the more efficient your system. A 13 SEER system is about 30 percent more efficient than a 10 SEER system. Consumers today can choose from a wide range of systems offering efficiency ranging from 13 SEER to 23 SEER.

According to AHRI, if the system’s two units are not properly matched, these major problems will occur:
· The system’s capacity to cool your home will be reduced and you will feel less comfortable
· Energy bills will increase due to reduced efficiency
· Reliability will suffer and compressor failure is more likely to occur
· You lose the opportunity to be eligible to receive a utility rebate or tax credit

Your best first step is to find a qualified and reputable contractor and get answers to these three important questions:

1. Will you be replacing the indoor coil with a new high-efficiency coil?
2. Does the new indoor coil properly match the outdoor unit manufacturer’s specifications for the system?
3. Can you verify the efficiency of the compressor or coil combination by showing me its certified SEER rating in the AHRI Directory of Certified Product Performance or by providing me with an AHRI Certificate of Certified Performance?

To help educate homeowners, AHRI offers a free brochure, “A Perfect Match: Replacing Your Central Air Conditioning or Heat Pump System.” The free brochure is available for consumers to download in the “Homeowners” section of the association’s Web site at www.ari.org.

Filed Under: Features, Heating and Cooling, Household Tagged With: air conditioning, cooling system, heat, heater, Heating and cooling

Heating and Cooling Purchases Down

April 21, 2008 By NightOwl

U.S. factory shipments of residential cooling and heating equipment declined in February, compared with the same month a year ago, while the commercial market for these products maintained steady growth, according to the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).
Central Air Conditioners and Air-Source Heat Pumps

Combined U.S. factory shipments of central air conditioners and air-source heat pumps for February totaled 335,897, a 13 percent drop compared with February 2007 total shipments. Heat pump shipments for February totaled 123,122, a 10 percent drop from the same month a year ago.

Warm Air Furnaces

U.S. factory shipments of gas warm air furnaces dropped 22 percent to 153,812, compared with February 2007 totals. Oil warm air furnaces for the same month fell 39 percent to 3,680, compared with February 2007 shipments of this equipment.
Room Heaters

A total of 3,562 vent-free room heaters were shipped in February 2008, a 22 percent drop compared with the same month last year.

Water Heaters

Residential electric water heater shipments for February totaled 361,529, slightly outpacing residential gas water heater shipments, which totaled 350,174, but shipments for both types of water heaters fell about 3 percent compared with shipments for the same month last year.

February gas logs and insert product shipments totaled 10,070, a 24 percent drop compared with the same month last year, while gas stove shipments for the same month jumped 34 percent compared to February 2007. Gas fireplace shipments for February 2008 totaled 2,616, a 19 percent drop compared to the same month last year.

Filed Under: Features, Heating and Cooling, Household, News Tagged With: air conditioners, central air, cooling, furnaces, heaters, Heating, room heater

How to Pick an Energy Efficient Appliance

April 9, 2008 By NightOwl

If you are confused by the different claims of energy efficiency by appliance manufacturers, JamesDulley of the Detroit Free Press has some helpful advice.

Depending upon the type of product and the fuel it uses, efficiency ratings can mean different things. Also, some manufacturers and/or salespeople play fast and loose with the accuracy of efficiency claims.

A basic definition of efficiency for any energy-consuming product is the amount of usable energy (heat, light, sound, etc.) output divided by the energy input. The energy input is usually an electric plug in the wall or a gas or propane line coming into your house. Electricity input is usually measured as wattage and gas or propane input as Btuh (Btu per hour).

Most plug-in electric heating devices and heaters, from the cheapest to the heavily advertised ones for $400, are nearly 100% efficient. All of the electricity consumed ends up as heat inside your house. The actual differences in operating costs depend upon how you use one and if the design is the proper one for your needs.

Always read efficiency claims thoroughly when comparing products. For example, some lower-quality gas space heaters may claim a very high 90% combustion efficiency. Combustion efficiency refers to how efficient the gas burns, not how efficiently the heat is transferred into your house. Its actual heating efficiency may be only 70%.

For electrical appliances, such as window air conditioners, you can calculate the efficiency by dividing the Btuh cooling output by the electric wattage shown on the nameplate.

For other major appliances, such as washers and refrigerators, rely on the yellow energy label. Your usage habits often have more impact on the overall efficiency than the appliance design itself.

For central heating and cooling equipment, the manufacturer’s efficiency ratings should be accurate.

They are AFUE (annual fuel utilization efficiency for furnaces), SEER (seasonal energy efficiency ratio for air conditioners) and HSPF (heating seasonal performance factor for heat pumps).

Filed Under: choosing a Kitchen Appliance, Dishwasher, Dryers, Features, Heating and Cooling, Household, Kitchen, Laundry, Oven, Ranges Ovens and Cooktops, Refrigerators and Freezers, Washing Machine, _ Tips Tagged With: choosing an appliance, energy efficiency, energy efficient appliances

Appliance Maintenance Tips and Lifespan Estimates

March 27, 2008 By NightOwl

I think it’s good to be reminded regularly to look after these appliances we spent so much to acquire.  So I feel justified in offering this list from the Sun Herald that nudges you to take a minute and check up on your household appliances. It could add years to their lifespan.

Refrigerator

Average life span: 14 years

What you need to do: Locate the condenser coils by checking your owner’s manual. Clean them by unplugging the fridge and removing dust gently with a broom or brush. Check the seals by sliding a piece of paper in the closed door. If it falls out, you need to replace your seals. And defrosting regularly can’t hurt.

Inspected and cleaned: Have it done if your at-home remedies don’t work or if there are noises you can’t locate.

Washer, dryer

Average life span: Washer: 12 years; Dryer: 14 years

What to do: Clean the dryer’s lint filter and hoses. Kinks or ridges can cause highly flammable lint to build up, a major cause of fire.

Inspected and cleaned: Replace the hoses on your washing machine every 3 to 5 years.

Window air conditioner

Average life span: 13 years

What you need to do: Changing the air filter every month helps the system run more efficiently and improves air quality. Dirt and neglect are the main causes of AC failures, so clean it well.

Inspected and cleaned: Do it twice a year, usually fall and spring.

Garbage disposal

Average life span: 13 years

What you need to do: Keep anything stringy, like pumpkin pulp, out of it. Also leave out tough produce, anything hard that can dull the blades, and grease, which can clog your pipes.

Inspected and cleaned: Have this looked at whenever your plumbing is checked.

Microwave

Average life span: 5 to 8 years

What you need to do: Microwaves are simple appliances; they don’t know the difference between the food you want cooked and old splatters in the chamber, so keep it clean and don’t exceed the recommended usage.

Inspected and cleaned: Anytime there’s a problem. You should never attempt to work on it yourself.

Dishwasher

Average life span: 9 to 12 years

What you need to do: Be mindful of what you put in it. Leave out small pieces that can get lodged in the drain and make sure everything is dishwasher-safe. Use a powdered detergent, because gels can cloud dispenser and glasswear. Spend the few dollars on a rinse aid, such as Jet-Dry, every month or so.

Inspected and cleaned: Every 2 to 3 years.

Water heater

Average life span: electric: 6 to 14 years; gas: 5 to 9 years

What you need to do: Check your hoses, fittings and release valves. Also watch for damaged areas on the outside of the tank and leaking.

Inspected and cleaned: Every couple of years.

Stove

Average life span: electric, 16 years; gas, 19 years

What you need to do: Check temperature with a thermometer or by following a basic white cake mix and making sure it cooks correctly. Keep it clean inside and out, using nonabrasive cleaners. Check your seals and the hinges, which can bend over time and let heat escape.

Inspected and cleaned: Any time it’s not heating properly.

Central air system

Average life span: 10 to 20 years

What you need to do: Check for leaks around the system and with hose connections. You should also change your filter monthly.

Inspect and cleaned: Seasonally

Filed Under: Dishwasher, Dryers, Features, Gas Range, Heating and Cooling, Household, Kitchen, Laundry, Parts/Repairs, Refrigerators and Freezers, Washing Machine, _ Tips Tagged With: appliance lifespan, appliance maintenance, dryer maintenance, refrigerator maintenance, washer maintenance

Prevent Carbon Monoxide Poisoning

March 3, 2008 By NightOwl

Carbon monoxide is a silent, odorless killer. As a household dweller, you are responsible for preventing the dangers of carbon monoxide (CO) from harming you or your loved ones. Many household appliances emit CO, or can if they are not functioning properly.

Carbon monoxide is produced whenever fuel such as gas, oil, kerosene, wood or charcoal is burned. The amount of CO produced while using fuel-burning appliances is usually not harmful. It becomes hazardous when appliances are used improperly or are not functioning adequately.

Residential sources:

  • furnaces
  • woodstoves
  • water heaters
  • gas stoves
  • fireplaces

Even at low levels of exposure, carbon monoxide can cause serious health problems. There are a number of symptoms that are indicators of possible carbon monoxide poisoning. These symptoms vary depending on the amount of exposure to the actual poison. Recently, studies have been performed to show that chronic carbon monoxide poisoning can result in long term, residual effects on our bodies. Symptoms such as nausea, headaches and light-headedness should be checked by a physician especially when more than one person in the home is showing symptoms. Although everyone needs to be aware of the dangers, some people are more susceptible than others. The following are more susceptible to carbon monoxide poisoning.

  • Foetuses
  • Infants
  • Elderly People
  • Those who suffer from anaemia, respiratory or heart disease

Precautionary Measures
Routinely at the beginning of every heating season home owners should have their fuel burning appliances checked by a qualified technician. Appliances deteriorate with time and can be a health risk to those who live in the home.

Besides having your appliances inspected, those using fuel-burning appliances should have their homes equipped with carbon monoxide detectors to provide added peace of mind. Appliances can break down any time of year so it is important to have a back-up system in place to keep you informed when CO levels increase. A CO detector should be placed on every floor in the home to provide the best protection.

Filed Under: Features, Gas Range, Heating and Cooling, Household, Safety, _ Tips Tagged With: Carbon Monoxide, Carbon Monoxide Poisoning, preventing Carbon Monoxide Poisoning

Save Money with a Programmable Thermostat

March 1, 2008 By NightOwl

Programmable thermostats automatically adjust your home’s temperature settings, allowing you to save energy while you’re away or sleeping.  Some features are:

  •  more convenient and accurate than manual thermostats and improve your home’s comfort
  • contain no mercury
  • save energy and save money on utility bills — when used properly, about $150/year
  • are better for the environment, since using less energy helps reduce greenhouse gas emissions associated with energy production
  • Programmable thermostats earn the ENERGY STAR by meeting strict energy efficiency guidelines set by the government. These units save energy by offering 4 convenient, pre-programmed temperature settings — settings that try to anticipate when it’s convenient for you to scale back on heating or cooling.

    If you are like many homeowners and work outside the home during the day and have a different schedule on the weekend, a programmable thermostat can offer many benefits, and the return on your investment is usually within 1 year.

    On the other hand, if you are home throughout the day, seven days a week, then a programmable thermostat will offer more limited benefits.

    Through proper use of a programmable thermostat (using the 4 pre-programmed settings) you can save about $150* every year in energy costs.

    Rules of Thumb for Proper Use:

    1. Keep the temperature set at its energy savings set-points for long periods of time (at least eight hours), for example, during the day, when no one is at home, and through the night, after bedtime.
    2. All thermostats let you temporarily make an area warmer or cooler, without erasing the pre-set programming. This override is cancelled automatically at the next program period. You use more energy (and end up paying more on energy bills) if you consistently “hold” or over-ride the pre-programmed settings.
    3. Units typically have 2 types of hold features: (a) hold/permanent/vacation; (b) temporary. Avoid using the hold/permanent/vacation feature to manage day to day temperature settings. “Hold” or “vacation” features are best when you’re planning be away for an extended period. Set this feature at a constant, efficient temperature (i.e. several degrees warmer temperature in summer, several degrees cooler during winter), when going away for the weekend or on vacation. You’ll waste energy and money if you leave the “hold” feature at the comfort setting while you’re away.
    4. Cranking your unit up to 90 degrees or down to 40 degrees, for example, will not heat or cool your house any faster. Most thermostats, including ENERGY STAR qualified units, begin to heat or cool at a programmed time, to reach set-point temperatures sometime thereafter. Units with adaptive, “smart,” or “intelligent” recovery features are an exception to this rule — they reach desired temperatures by the set time, since they use formulas that are based on your historical use.
    5. Install your unit on an interior wall, away from heating or cooling vents and other sources of heat or drafts (doorways, windows, skylights, direct sunlight or bright lamps).
    6. Many homes use just one thermostat to control the whole house. If your home has multiple heating or cooling zones, you’ll need a programmed setback thermostat for each zone to maximize comfort, convenience and energy savings throughout the house.
    7. Don’t forget to change the batteries each year. Some units indicate when batteries must be changed.

    *The $150 savings assumes a typical, single-family home with an 8 hour daytime setback and a 10 hour nighttime setback of 8°F in winter and 4°F in summer.

    Features

    ENERGY STAR qualifies these types of units:

    7-day models are best if your daily schedule tends to change, say, if children are at home earlier on some days. They give you the most flexibility, and let you set different programs for different days – usually with four possible temperature periods per day.

    5+2-day models use the same schedule every weekday, and another for weekends.

    5-1-1 models are best if you tend to keep one schedule Monday through Friday, and another schedule on Saturdays and Sundays.

    All ENERGY STAR qualified programmable thermostats include:

    • Four default program periods per day, allowing you to save money while you’re away or sleeping
    • +/- 2 degree accuracy to keep the temperature at an even level, keeping you comfortable

    ENERGY STAR qualified programmable thermostats typically come with:

    • Digital, backlit displays
    • Touch pad screen programming
    • Voice and/or phone programming
    • Hold/Vacation features
    • Indicators which tell you when its time to change air filters
    • Indicators that signal malfunctioning of heating/cooling systems
    • Adaptive Recovery/ Smart Recovery features – control features that senses the amount of time it will take to reach the next set-point temperature, and reach desired temperatures by the set time

    Installation

    Programmable thermostats are a low voltage wiring installation (however, you should shut down your electricity during the replacement), and involve anywhere from 2–10 wires, depending on your type of heating and cooling system. The previous attachment points will reconnect your new unit. Read all instructions and proceed carefully.

    If the job requires more than just a replacement, call your certified HVAC professional to ensure proper installation, as well as operation of your heating and cooling system. It’s a good idea to upgrade an old manual thermostat to a programmable unit, if you’re replacing a CAC or heating system given that programmable units are far more accurate and will maximize the efficiency of your new system For heat pumps, you may need a special unit to maximize energy savings year-round. Talk to your retailer or HVAC contractor before selecting the unit.

    Also, if you’re replacing a conventional thermostat that has a mercury switch, be careful not to break the tube that holds this toxic substance. Contact your local recycling/hazardous materials center, or the manufacturer of your new thermostat, for advice on proper disposal.

    Filed Under: Features, Heating and Cooling, Household, _ Tips Tagged With: energy star, energystar programmable thermostat, green, Programmable Thermostat, thermostat

    Save Money with a Programmable Thermostat

    February 29, 2008 By NightOwl

    If you are interested in saving energy, the government’s Energy Star program offers their seal of approval on programmable thermostats as well as a variety of household appliances. 

    Programmable thermostats automatically adjust your home’s temperature settings, allowing you to save energy while you’re away or sleeping.

    They:

    • are more convenient and accurate than manual thermostats and improve your home’s comfort
    • contain no mercury
    • save energy and save money on utility bills — when used properly, about $150/year
    • are better for the environment, since using less energy helps reduce greenhouse gas emissions associated with energy production

    Programmable thermostats earn the ENERGY STAR by meeting strict energy efficiency guidelines set by the government. These units save energy by offering 4 convenient, pre-programmed temperature settings — settings that try to anticipate when it’s convenient for you to scale back on heating or cooling.

    If you are like many homeowners and work outside the home during the day and have a different schedule on the weekend, a programmable thermostat can offer many benefits, and the return on your investment is usually within 1 year.

    On the other hand, if you are home throughout the day, seven days a week, then a programmable thermostat will offer more limited benefits

    Through proper use of a programmable thermostat (using the 4 pre-programmed settings) you can save about $150* every year in energy costs.

    Rules of Thumb for Proper Use:

    1. Keep the temperature set at its energy savings set-points for long periods of time (at least eight hours), for example, during the day, when no one is at home, and through the night, after bedtime.
    2. All thermostats let you temporarily make an area warmer or cooler, without erasing the pre-set programming. This override is cancelled automatically at the next program period. You use more energy (and end up paying more on energy bills) if you consistently “hold” or over-ride the pre-programmed settings.
    3. Units typically have 2 types of hold features: (a) hold/permanent/vacation; (b) temporary. Avoid using the hold/permanent/vacation feature to manage day to day temperature settings. “Hold” or “vacation” features are best when you’re planning be away for an extended period. Set this feature at a constant, efficient temperature (i.e. several degrees warmer temperature in summer, several degrees cooler during winter), when going away for the weekend or on vacation. You’ll waste energy and money if you leave the “hold” feature at the comfort setting while you’re away.
    4. Cranking your unit up to 90 degrees or down to 40 degrees, for example, will not heat or cool your house any faster. Most thermostats, including ENERGY STAR qualified units, begin to heat or cool at a programmed time, to reach set-point temperatures sometime thereafter. Units with adaptive, “smart,” or “intelligent” recovery features are an exception to this rule — they reach desired temperatures by the set time, since they use formulas that are based on your historical use.
    5. Install your unit on an interior wall, away from heating or cooling vents and other sources of heat or drafts (doorways, windows, skylights, direct sunlight or bright lamps).
    6. Many homes use just one thermostat to control the whole house. If your home has multiple heating or cooling zones, you’ll need a programmed setback thermostat for each zone to maximize comfort, convenience and energy savings throughout the house.
    7. Don’t forget to change the batteries each year. Some units indicate when batteries must be changed.

    *The $150 savings assumes a typical, single-family home with an 8 hour daytime setback and a 10 hour nighttime setback of 8°F in winter and 4°F in summer.

    Features

    ENERGY STAR qualifies these types of units:

    7-day models are best if your daily schedule tends to change, say, if children are at home earlier on some days. They give you the most flexibility, and let you set different programs for different days – usually with four possible temperature periods per day.

    5+2-day models use the same schedule every weekday, and another for weekends.

    5-1-1 models are best if you tend to keep one schedule Monday through Friday, and another schedule on Saturdays and Sundays.

    All ENERGY STAR qualified programmable thermostats include:

    • Four default program periods per day, allowing you to save money while you’re away or sleeping
    • +/- 2 degree accuracy to keep the temperature at an even level, keeping you comfortable

    ENERGY STAR qualified programmable thermostats typically come with:

    • Digital, backlit displays
    • Touch pad screen programming
    • Voice and/or phone programming
    • Hold/Vacation features
    • Indicators which tell you when its time to change air filters
    • Indicators that signal malfunctioning of heating/cooling systems
    • Adaptive Recovery/ Smart Recovery features – control features that senses the amount of time it will take to reach the next set-point temperature, and reach desired temperatures by the set time

    Installation

    Programmable thermostats are a low voltage wiring installation (however, you should shut down your electricity during the replacement), and involve anywhere from 2–10 wires, depending on your type of heating and cooling system. The previous attachment points will reconnect your new unit. Read all instructions and proceed carefully.

    If the job requires more than just a replacement, call your certified HVAC professional to ensure proper installation, as well as operation of your heating and cooling system. It’s a good idea to upgrade an old manual thermostat to a programmable unit, if you’re replacing a CAC or heating system given that programmable units are far more accurate and will maximize the efficiency of your new system For heat pumps, you may need a special unit to maximize energy savings year-round. Talk to your retailer or HVAC contractor before selecting the unit.

    Also, if you’re replacing a conventional thermostat that has a mercury switch, be careful not to break the tube that holds this toxic substance. Contact your local recycling/hazardous materials center, or the manufacturer of your new thermostat, for advice on proper disposal.

    Filed Under: Features, Heating and Cooling, Household, _ Tips Tagged With: energy star, energy star Programmable Thermostat, Programmable Thermostat, thermostat

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