Furnaces Heat Pumps Thermostats
Home Page Products Service Department Resources Industry News FAQ'S

  Environmentally Friendly Refrigerant.
In 1987, the Montreal Protocol, an international environmental agreement, established requirements that began the worldwide phase-out of ozone-depleting chlorofluorocarbons (CFCs). This Protocol is carried out in the United States as part of the Clean Air Act, which is implemented by the EPA.

  Price Escalation.
As a result of skyrocketing fuel costs and the resulting effect on manufacturing and transportation costs, HVAC equipment manufacturers have been increasing pricing to their contractors. Some major industry manufacturers have recently announced their third major price increase for the year.



What is indoor air quality?
Air Pollution surrounds us daily...car exhaust, smog, indoor air. That's right, indoor air quality is important to your health. Your exposure to air pollutants can be up to 100 times higher indoors than outdoors. The American Lung Association estimates that most people spend 90% of their time indoors. So, clean indoor air is very important.

How can I improve indoor air quality?

Eliminate
- The first step is to identify the sources of air pollutants. Eliminating these sources, to the extent possible, is the most effective way to clean the air.

Ventilate - Specialists here at TVM can recommend ways you can increase ventilation within your home such as the installation of an outdoor air connection or the use of a heat recovery ventilator (HRV), or energy recovery ventilator.

Clean - A third way you can minimize the concentration of pollutants in your indoor air is by thoroughly cleaning your living spaces. Frequent dusting and vacuuming can help to reduce the amount of dust particles in the air.

Why is clean indoor air important?
Indoor air quality is a concern today as most newer homes are being built "tighter" to be more energy efficient. Unfortunately, making homes more energy efficient has a price. Indoor air quality may suffer as the exchange of indoor and outdoor air is limited. How can I clean indoor air? Frequent dusting, vacuuming, and washing of bedding will reduce the amount of dust and dust mites present in your living spaces. Some particles are so small they may escape through your vacuum. To capture these particles, filtration devices can be helpful.

AccuClean Whole Home Air Filtration - Highly efficient filters that use an electrical charge to remove and collect airborne particles such as dust, smoke and pollen. The charged particles are attracted to each other and forced thru a alternately charged cell where they will be collected. Removes up to 99.98% of allergens from filtered air. Filter maintenance and operation The need to replace or clean filters is a function of many variables such as run time, efficiency, size and type. Typically, low-efficiency disposable and permanent filters need to be replaced or cleaned every one or two months in peak heating and cooling seasons.

Why is it Important to have Regular Maintenance on my System?
Have you ever wondered about the mechanical condition of an airplane prior to taking off? How about your car? Sure, most people can handle the little stuff, such as checking the oil, changing wiper blades, or checking tire air pressure but to keep your car operating efficiently, you need an occasional tune-up from a professional auto mechanic.

Your heating and air conditioning system is no different. To get the highest performance and the longest life from your system, you should have a professional technician perform routine maintenance twice each year. Spring Maintenance In the spring, Tennessee Valley Mechanical Heating & Air can check a heat pump* or air conditioner for all or some of the following:
 
bullet change the filter
bullet operating pressures
bullet refrigerant charge
bullet compressor
bullet fan motor
bullet capacitors
bullet belts
bullet crankcase heaters
bullet clean coils
bullet lubrication of moving parts
 
Fall Maintenance Prior to the winter heating season, Tennessee Valley Mechanical Heating & Air can check your furnace in the following areas:

bullet burner and pilot assemblies
bullet cracks in the heat exchanger
bullet check the pilot thermocouple
bullet examine the filter and check vent piping
bullet test the electronic ignition
bullet test the fan
bullet test the limit switch
bullet burner adjustments
bullet measure manifold gas pressure
bullet measure temperature rise
bullet carbon monoxide test
bullet set the heat anticipator
bullet check and adjust belt tension
bullet examine the draft diverter
bullet lubricate the fan motor
bullet *Heat pumps should be serviced twice each year.

What do the heat pump and air conditioner ratings mean?

It is easy to feel overwhelmed by the array of efficiency ratings, abbreviations and acronyms used to describe or explain heat pumps and air conditioners. You can use the knowledge of the following definitions to make a more informed choice on your comfort needs. Efficiency Ratings SEER - Seasonal Energy Efficiency Rating. This is a system for rating the efficiency of cooling equipment. It is calculated by dividing the cooling capacity of a continuously operating air conditioner by the electric power input. The higher the SEER, the less your unit will cost to operate.

HSPF - Heating Seasonal Performance Factor. This measurement is similar to SEER, but it measures the efficiency of the heating portion of you heat pump.

General Industry Terms
HVAC - Heating, ventilation and air conditioning. This term applies to both to the heating and cooling industry.
Btu - British thermal unit. This is the amount of heat that will raise or lower the temperature of one pound of water by one degree Fahrenheit.
Btuh - British thermal units per hour. A measurement of heat transfer rate.
Ton - 12,000 Btuhs. A typical single family residence uses air conditioning or heat pumps ranging between 2 and 5 tons of capacity.
Watt - A unit of electrical power.
Kilowatt - One thousand Watts.
KWh - Kilowatt-hour. A unit of electrical energy equal to the work done by one kilowatt acting for one hour.

Should I Repair or Replace Old Equipment?

Three primary factors for consideration are:
 
bullet Operating Cost
bullet Life Expectancy of Your Equipment
bullet Looking at the Total System
 
Operating Cost
Operating cost is a continuous and ongoing factor that should be considered. Restoring an old system will only bring it back to its original level of energy efficiency. You still will not save on your energy bills.

Even a heat pump or air conditioner that is six (6) years old, is considered grossly inefficient by today's energy efficiency standards. So are most furnaces built before 1980. You could save as much as 60% on your energy bills with new high-efficiency equipment. That's how and why installing a new heating and cooling system can actually pay for itself in energy savings within a relatively short time.

Life Expectancy of Your Equipment
When you're frustrated with an equipment break-down, it can be tempting to find the least expensive "quick fix" to get on with your life in relative comfort. That "quick fix" may be the least expensive now, but it may not give you the most value - or cost you the least - in the long run.

Paying for repairs to an old or inefficient system frequently just prolongs the inevitable. It's almost like putting a bandage on a serious injury. An older system that breaks down once is likely to break down again ... and again ? and again. That means more emergency service calls or, worse yet, the risk of damage to your home or to other components of your heating and cooling system.

Looking at the Total System
When one component of your system breaks down unexpectedly, it's easy to just focus on repairing or replacing that component. But each part of your system works integrally, with the others to maintain efficiency and reliability. For that reason, heating and air conditioning professionals always recommend that their customers keep their total system in mind.

For example, replacing your old furnace with a new higher-efficiency model but leaving your old thermostat in place, will not allow you to enjoy all of the efficiency advantages the furnace has to offer. Likewise, if you install a new furnace but don't get a humidifier, the air may seem cooler, forcing you to operate your new system at a higher temperature to be comfortable. Plus, you can often save on installation costs if you have several components of your system replaced at the same time.

What Type of System is Right for our Home?
The system that is right for you will depend on a number of factors: your budget, your comfort expectations, physical factors such as what type of system currently exists in your home, the unique features of your home, and more. Below, you can explore the system options available and some of the key factors that affect your choice.

Types of Systems

For the basics of heating or cooling temperature control, you typically will have Three system options:
 
bullet Gas Furnace/Air Conditioner
bullet Heat Pump
bullet Small Packaged System
 
Key Accessories
Additional comfort comes from having clean, fresh air as well as proper humidity levels inside. These products will fine-tune your system to help improve your overall comfort and the efficiency of your indoor comfort system.
 
bullet Air Cleaners
bullet Ventilators
bullet Humidifier
bullet Dehumidifier
 
System Control
Most people are familiar with the basic thermostat however, control of your system is more than simply setting a temperature. It includes being able to program a comfort schedule for different times of day, setting humidity levels, and even setting different temperatures for different areas of the home. Here's how:
 
bullet Electronic Thermostats
bullet Humidifiers
bullet Zoning System
 
Key Factors that Affect Your Choice
Some of your home comfort decisions will be made for you based on some of the physical considerations involved, including:

Your Home

Everybody's home is different. Some are big, some are small. Older homes are not as tightly sealed as new ones, which means efficiency is reduced. The number and size of windows, what direction the home is facing, number of mature trees in the yard and many more factors can affect your comfort, and may play a part in deciding what type of system is best for you. Your heating and air conditioning contractor should have the expertise to perform an energy audit and to assess any unusual circumstances surrounding the specific needs of your home.

Your Existing System

If you are replacing an existing system, there are physical and financial reasons to stay with the same type of system. If you want a new type of system because you were dissatisfied with your comfort, remember that a new system will bring newer comfort technology and energy efficiency. Also, your comfort problem could be related to other issues, such as improper ductwork, system balance, cleanliness or freshness of air, humidity control and system control.

Your Geographical Region

Although there are exceptions to every rule, geography can play a role in what type of system will work best in your home. Here's the general idea:
 
bullet Colder regions - Furnace or Boiler/Air Conditioner combo
bullet Warmer regions - Heat Pump or Air Conditioner with/ supplemental heat
bullet Areas with land or space restrictions - Small Packaged Rooftop systems
 
Why should I choose a variable-speed unit?
The term variable-speed refers to the furnace indoor air blower motor. The blower motor is the component that determines the amount of air the blower is required to deliver to your home.

When your furnace is installed, the speed and airflow for your home is set. However, there are situations that can occur within the household to restrict this. Think of variable-speed technology as your assurance for home comfort the way you prefer it.

Having the technology of variable-speed in your furnace offers many benefits: electrical efficiency. Variable-speed motors can actually save you money on your energy bill as they consume less electricity than standard motors.

Cooling Efficiency - The higher the SEER the more energy efficient the unit. This means even more energy savings for your household.

Zoning - Variable-speed furnaces are excellent for zoning your home. Zoning allows you to customize your comfort in different areas or zones in your home and control your energy bills.

Air Quality - A variable-speed motor combined with a humidistat, allows you to better control the humidity in you home. The relative humidity in your home should be between 40-60%. This range is most ideal to minimize growth of biological pollutants such as mold and mildew. The consistent airflow of the variable-speed motor helps to improve air filtration efficiency.

What about the different price quotes that I received from three different Companies?

    Choosing the right heating/cooling contractor to replace your current system can be one of the most important decisions you can make that will affect your indoor air quality, monthly utility bills, comfort and years of trouble free service of the system you invest in. Be sure to check it out, the Better Business Bureau is a great resource. Also get the quote in writing from a reputable HVAC contractor. Be sure that it's clear what your paying for and
 what you are getting this should always be in writing up front before you pay anything. Never pay 100% up front 50% is the standard amount. Did the contractor inspect the complete system including the ductwork? Is it a current model year unit, or a left over unit? Is the unit the same size as your previous unit or were system sizing requirements for the new system calculated? If they were calculated, "As they should be" you should be given the computer printout of the calculations when the job is completed. Last but certainly not least research the equipment; consumer reports is another great resource.

Our relationship with each and every customer is based upon our commitment to treat you with honesty and unconditional integrity.
 
ASHRAE Better Business Bureau American General Financing North American Technician Excellence Home Page Products Service Department Resources Industry News FAQ's Heritage Web Solutions Login