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Copyright © 2016-2020 by Excel Mechanical, LLC – All Rights Reserved.

Excel Mechanical
is Committed to Serving You…
Before and After We Complete Your Job

Here, we have some resources that can help you save money,
save time and expand your HVAC knowledge.


Federal Tax Rebates:

Tax credits for residential renewable energy products are still available through December 31, 2021. Renewable energy tax credits for fuel cells, small wind turbines, and geothermal heat pumps now feature a gradual step down in the credit value, the same as those for solar energy systems.

Local Tax Rebates

Local utility company rebates vary depending on HVAC equipment type and level of efficiency.  Below is a link to an interactive Database of State Incentives for Renewables and Efficiency (DSIRE)


Understanding Efficiency Ratings For Heating & Cooling Equipment:

For anyone not directly involved in the HVAC industry, efficiency ratings can be a bewildering jumble of acronyms and numbers.

What efficiency ratings mean to you:

  • Efficiency ratings are determined in a laboratory where an exact set of indoor and outdoor conditions are specified by the US Department of Energy. Because each piece of equipment is evaluated using the exact same conditions, the rating can be used in comparing the performance of equipment from different air conditioning and heating manufacturers. The government uses the same test requirements for several types of energy ratings, such as AFUE, HSPF and SEER.
  • It is important to understand efficiency ratings especially when you are shopping for a new air conditioner, heat pump, or gas furnace. The more efficient the system,  the lower your utility bills will be. All AFUE, HSPF and SEER ratings are derived from standard tests which are issued by the government and come from industry professional organizations.

Is buying more efficient HVAC equipment really worth the cost?

  • In many cases, yes.  There are, however, a number of important factors that must be considered to answer this question. How much money you will actually save on utility bills depends on personal comfort preferences, utility rates (electricity, gas, etc.), and weather conditions – all of which can vary greatly.
  • Not to be overlooked is the aspect of quality.  More efficient air conditioners and heat pumps are often built using higher quality materials and may have better warranties.
  • It is wise in all cases to consider the Total Cost of Ownership (TCO)
    Initial Cost + Cost to Operate ÷ Life Expectancy = TCO

We can help you sort through all the factors and custom design a system that’s right for you.


Below are some of the more commonly used HVAC ratings and a basic description of what they mean:

SEER: The Seasonal Energy Efficiency Ratio is a measure of the cooling efficiency of your central air conditioner or heat pump.  It is the amount of cooling that an air conditioner (or heat pump) delivers per watt of electricity used.  The higher the SEER number the better the system is at converting electricity into cooling your home.  The industry minimum SEER is currently 14.00.

HSPF: The Heating Seasonal Performance Factor is a measure of the heating efficiency of a central heat pump. The higher the HSPF number the better the heat pump converts electricity to heat for heating your home. HSPF is a measure of a heat pump’s energy efficiency over one heating season. Heat pump industry minimum HSPF is currently 8.2.

AFUE: The Annual Fuel Utilization Efficiency tells how efficiently a gas or oil furnace converts fuel into heat. An AFUE of 80% means that 80% of the fuel is used to heat your home while 20% is wasted. AFUE is limited in that it only refers to the unit’s fuel usage and not its electrical consumption.  The industry minimum AFUE is currently 80%.

COP: The Coefficient OPerformance is a measure of heating capacity (in Btu/h) at standard heating conditions divided by its electrical input (in watts).  The higher the COP, the more efficient the unit is at converting electricity into heat.  This rating is commonly used for geothermal heat pumps where the source of heat (ground) is a stable temperature year round so does not require “seasonal” averaging like SEER or HSPF. The industry minimum COP for geothermal heat pumps is currently 3.6 on closed loop systems and 4.1 on open loop systems (water-to-air).

EER: The Energy Efficiency Ratio is a measure of cooling capacity (in Btu/h) divided by its electrical input (in watts). The higher the EER, the more efficient the unit is at converting electricity into cooling.  EER is not seasonally averaged (see SEER above).   The industry minimum EER for geothermal heat pumps is currently 17.1 on closed loop systems and 21.1 on open loop systems (water-to-air).


The following links contain detailed information about HVAC equipment efficiency:

Compare the efficiency of heating and cooling equipment to calculate utility cost estimates:


Many financing options are available through third party lenders.  Responsibility for obtaining credit rests solely on borrower.



Copyright © 2016-2020 by Excel Mechanical, LLC – All Rights Reserved.

Excel Mechanical
Your Full-Service Heating, Ventilating,
Air-Conditioning, and Refrigeration Company.

Whether you’re a home owner, business owner or contractor, we have
the experience, tools, and software to custom design and install a heating
and cooling system that’s perfect for the finest homes & commercial buildings.

Home & Business Comfort Control

The new Bosch DC inverted split heat pumps are amazing!  Ultra-efficient and delivering maximum comfort at up to 18 SEER with outdoor unit sound levels as low as 56 dBA.

Rheem has been an industry leader in home comfort innovation for nearly 100 years!  We make it easy to select the products and systems you’re looking for.

Geothermal Heating & Cooling Systems

Geothermal heating and cooling systems: No other investment in your home can give you this kind of pay back!

Ductless Systems

Ductless (or “mini split”) systems are very efficient to operate and perfect for isolated or special use rooms in both residential and commercial settings.



Copyright © 2016-2020 by Excel Mechanical, LLC – All Rights Reserved.


Your Honest,

A/C & Heating Company.

Serving the Dunnellon & Citrus Springs, FL Areas.

Design • Installation • Repair

Nationally certified with over 25 years
experience in design, installation, &
service.  You can be sure that a call made
to us will give you the results you want.

Licensed & Insured

FL: CMC1250737
SC: M110947
OH: HV12055


Do You Want Your Heating & A/C Project Done Right? Call us!










Excel Mechanical, LLC is nationally certified. We have over 25 years of experience in HEATING and AIR-CONDITIONING systems.  Design, installation, and service.

  • Furnaces
  • Air-conditioners
  • Heat pumps
  • Geothermal
  • Ductless mini-splits
  • Dehumidifiers
  • Air Purifiers…and more.

Excel is your full-service climate control partner.  We service and repair all brands.

Whether you want to maintain your current system for maximum efficiency, or need an entirely new system altogether…

We will clearly guide you through the options and create a customized solution which meets your specific requirements.

It is hard to find a heating and air-conditioning service company you can trust. We pride ourselves on providing honest and professional services for all of your heating and air-conditioning needs.

  • Over 25 Years of Experience
  • Locally Owned and Operated
  • Efficient & Honest
  • Quality HVAC/R Products
  • Customized Solutions
  • Licensed & Insured
  • NATE C1 Certified
  • Financing Options Available

Put EXCEL’s Experience to Work on YOUR next HVAC Project…



Copyright © 2016-2020 by Excel Mechanical, LLC – All Rights Reserved.

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