5504 Wilkins Court, Rockville, Maryland 20852, United States

301 656-3113

Heating & Air Conditioning
Rockville HVAC Service
Potomac AC repair

Energy Efficient HVAC in Montgomery County

Energy Star Dealer
Economical Heating & Cooling in Rockville.
Montgomery County, MD HVAC

Going Green Saves Green

 As much as half of the energy used in your home goes to heating and cooling.  The energy savings in some of our better units can pay for the unit.  

It takes Energy-Efficient Equipment to Save on Heating & Cooling Costs

Energy-efficient heating and cooling products make home comfort more affordable. Understanding efficiency ratings is an important first step in choosing the system that’s right for you. 

Furnaces: If you have an older furnace, you could save considerably on your heating bill by upgrading to a higher-efficiency model – start by checking out the AFUE rating. 

AFUE (Annual Fuel Utilization Efficiency) 

• Standard measurement of efficiency for gas and oil-fired furnaces 

• Tells you how much of your fuel is used to heat your home and how much is wasted 

• The higher the rating, the greater the efficiency 

• Eli's offers a full line of furnaces with AFUE ratings of up to 98.3% 

 Air Conditioners & Heat Pumps: Upgrading to high-efficiency heat pumps and air conditioners requires an initial        investment, but you’ll quickly see payback in the form of lower, annual utility bills for the life of your system. To get    a better idea of how long it will take you to recover your investment, talk to Eli's Heat & AIr. To compare the efficiency of these products, look for two numbers – SEER rating for cooling, and if you’re considering a heat pump,    HSPF for heating. 

SEER (Seasonal Energy Efficiency Ratio) 

• Standard measurement of efficiency for the cooling process of air conditioners and heat pumps 

• The higher the number, the greater the efficiency 

• Eli's offers a full line of air conditioners with SEER ratings of up to 20.5 

    HSPF (Heating Seasonal Performance Factor) 

• Standard measurement of the efficiency of the heating mode of heat pumps 

• The higher the number, the greater the efficiency 

• Minimum required HSPF rating is 7.7 

• Eli's  offers heat pumps with HSPF ratings up to 13.0 

Matching Your System for Optimum Efficiency 

An additional factor that affects the efficiency of your system is your indoor coil (also called an evaporator coil). In order to maximize SEER and HSPF ratings and ensure proper performance, your air conditioner or heat pump unit must be matched with the correct indoor coil. When you replace an existing system, make sure you consider replacing the indoor coil so you get the most efficient performance.

Eli's-Air will sit down with you and do a cost-vs-benefit analysis

Energy Efficency and Health

 Indoor air contamination levels can be 25 times higher than outdoor air levels and is one of the EPA's top 5 public health risks. Fortunately, many of our products can help eliminate dangerous contaminants so you can go through your day worry free. 

Keeping Cozy

 A well-planned energy system controls the flow of air, heat and moisture. Insulation, ENERGY STAR® certified windows, and air sealing work to keep the air inside the building warm and dry. Mechanical ventilation systems (fans, heat recovery ventilators and air exchangers on heating systems) circulate the internal air as well as expel unwanted moisture and other pollutants. Properly sized, high-efficiency furnaces use less energy to heat buildings and, by controlling the air flow throughout the building, minimize the occurrences of hot and cold spots across all rooms. 

Eli's understands the importance of the mechanical systems in the plan.

Thermostats in 2019

The Wi-Fi Thermostat is here!

Make almost any heating and cooling system smarter about energy savings with the Housewise™ Wi-Fi®+ thermostat. Start saving today. It’s time to be smart. It’s time to get Housewise.


The Housewise thermostat begins saving you money as soon as it’s installed with built-in features like smart setback, energy-use reporting and tailored tips. You can save an average of 20% annually* on your heating and cooling energy costs. 


All you need is your smart device and an Internet connection to control your system from almost anywhere. 


With professional installation from Eli's Air, you’ll know the job is done right to maximize your system’s performance and keep more money in your wallet. 


HVAC in Montgomery County

Heating and Cooling

Air Conditioning & Heating