Guthrie and Sons - Sustainable, Economical and Green Heating and Air Conditioning. Thinking about tomorrow. Its Hard To Stop A Trane.

Guthrie & Sons

Sustainable Heating and Air Conditioning
Thinking about tomorrow...

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HEATING AND AIR CONDITIONING
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Heating, Ventilation and Air Conditioning Terminology

The HVAC Lingo

Quick Links

[AFUE] [BTU] [CFM] [Energy Star] [Heat Pumps] [SEER] [Single Stage / Single Speed] [Temperature Zoning] [Ton] [Two-Speed / Two-Stage] [UV Treatment] [Variable-Speed]

AFUE - Stands for Annual Fuel Utilization Efficiency. Think of it at miles per gallon in the furnace industry. Our furnaces range from 80% AFUE to as high as 96.6%. This means that only 4 to 20 cents goes out your exhaust opposed to 40 to 50 cents with older heating systems.

BTU - Stands for British Thermal Unit. For heating, it is the measure of heat given off when fuel is combusted. For cooling, it is a measure of heat extracted from your home. One BTU is equal to the amount of heat given of by a single wooden match.

CFM - Stands for cubic feet per minute. This is the amount of airflow that flows through your system. When using air conditioning the rule of thumb is 400 CFM per ton of air conditioning. For example a 4 ton system has to have a duct system capable of delivering 1600 CFM of airflow.

Energy Star - Is a program of the U.S. Department of Energy and Environmental Protection Agency. It is designed with the purpose of helping consumers identify energy efficient products. We are proud to be part of the energy star program and offer many products that meet their standards.

Heat Pumps - If you only use electricity to heat your home and have to gas then a heat pump is what you need. Heat pumps provide up to three times more heat than the energy they consume! They also double up as an air conditioner too. A heat pump is capable of reducing the amount of electricity you use to heat your home by up to 40%.

SEER - Stands for Seasonal Energy Efficiency Ratio. The minimum SEER rating today is 13 SEER and we offer products upwards of 19 SEER. Older cooling systems can be as low as 5 SEER. In this case you can save 30%-70% on your cooling bill by replacing it with a more efficient system.

Single Stage / Single Speed - This means that the unit is designed to perform at its highest heat mode. Furnaces are always designed to be able to heat your home on the coldest day. The problem with this is that you only need this heating capability a few days of the year. Single speed furnaces do not have the capability to adjust to milder conditions, this causing high temperature swings, a less comfortable living environment and increased energy usage.

Temperature Zoning - zone_pic Zoning systems allow you to control your heating and cooling comfort where and when you want it. When using zoning you no longer have the problem of over heating and cooling rooms you are not occupying, in order to be comfortable in another. Each zone is equipped with its' own thermostat and air volume damper that opens and closes as needed, based on that zones' thermostat setting. This allows for maximum efficiency with your heating and cooling system. You do not have to buy a new heating or cooling unit to do this; you simply add air volume dampers and controls to your existing duct work. Think of it like controlling the lights inside your house; you only use it where you need it.

Ton - It is a measurement used to determine heating and cooling capacity. In cooling, one ton equals 12,00 BTU. This meaning a 3 ton system would be capable of delivering 36,00 BTU per hour.

Two-Speed / Two-Stage - The unit is capable of performing at two heating stages. This greatly improves on indoor air circulation, overall comfort and also reduces operating noise. It operates on the lower speed over 90% of the time, which saves the consumer money on fuel and electricity. It only performs at high heat mode when there is a big demand for heat. This creates an overall more comfortable home with less temperature swings that are often associated with single speed furnaces.

UV Treatment - img_0686 U.V. air treatment systems can kill up to 87% of known airborne bacteria that passes through your heating and cooling system. This greatly reduces the amount of harmful agents such as mold, pollen, and dust that your family breathes. The lamps are similar to those used in hospitals and laboratories zapping the airborne particles that pass through the light and prevent them from being re-circulated back into the air. The U.V. bulbs are easily added to your existing heating and cooling system and are easy to replace when needed. The treatment comes with a five year warranty and meets the American Lung Association guideline.

Variable-Speed - Variable speed furnaces offer the quietest most efficient technology on the market today. The blower motor uses only 1/8 of the power of a standard furnace and has the ability to ramp airflow up and down based on temperature demand resulting in maximized home comfort. This furnace is especially effective for those who suffer from high-energy bills or for those with air filtration needs; such as allergy sufferers, pet owners, and those with dust problems. Using this furnace also increases air conditioning efficiency 10%.


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