Play VideoWhen you stop to think about it, there aren't too many times during the year when the outside temperature is just right.
That's why we rely on heating and cooling systems to maintain comfortable interior temperatures.
HVAC stands for Heating, Ventilation & Air Conditioning, but it's often used just to refer to a building's heating and cooling systems.
However you interpret the acronym, there's no doubt about the big chunk that the HVAC system takes out of our annual energy budget. In the average house, nearly half of our energy dollars are spent on heating and cooling.
Some HVAC components (like heat pumps, for example) can provide both heating and cooling. Others (like furnaces) accomplish just one function.
All HVAC components are described in several ways: by function, fuel, energy efficiency, and heating or cooling capacity. You'll find more detailed descriptions about HVAC component function, size, and efficiency when you go to specific heating system pages.
Dr. Energy Saver Connecticut provides heating and cooling systems in Greenwich, Stamford, West Hartford and nearby areas such as Weston, Easton, Woodbridge, Newtown, Trumbull, Stratford, Danbury.

A furnace boiler or water heater burns fuel to generate heat and needs to put that heat into an air stream in your ducts, or into water in your pipes. The efficiency rating is what percentage of that heat gets into your air or water. What happens to the rest of the heat? It goes up the chimney and is lost into the sky. Therefore, a 15-year-old furnace that is 65% efficient is putting 35% of the heat you paid for up the chimney. A 96% efficient furnace only "wastes" 4%! A big difference! And since the cost of the fuel you put through a furnace, boiler or water heater during its lifetime is much greater than the cost of the unit itself, it's worth it to install the very highest efficiency equipment available! Let Dr. Energy Saver accomplish this in your home!
Dr. Energy Saver Connecticut can evaluate your current heating system and provide a free quote on a super-efficient system that will save you money. Call or email today for a free quote.
We can service HVAC components to provide optimum operating efficiency. We can also provide free estimates for replacing old, inefficient equipment with advanced equipment that will save energy and improve interior comfort. Upgrading to super-efficient HVAC equipment can cut heating and cooling costs by 30%-50%. Call or email today for a free estimate.
Tom & Larry's Excellent Home Energy Savings Show talks about hybrid dual-fuel systems and how these hybrid systems work.
Hybrid heating & cooling systems are energy efficient, save money and save the environment!
If a heating contractor (sometimes called a HVAC installer) comes to evaluate your HVAC system, don't be surprised if he or she also takes time to inspect levels of insulation in your house.
There's a good reason for this. Insulation slows the transfer of heat.
In winter months, higher insulation levels mean that less heat will escape from your house, so your heating system will not need to operate as frequently.
In the summer, insulation slows heat movement from outside to inside, putting less demand on your cooling system.
A home heating company may recommend upgrading insulation levels in different parts of your house, along with air-sealing improvements that will limit the volume of conditioned air that leaks to the outside. A tighter (air sealed), well-insulated house will require a smaller HVAC system than a leaky, poorly insulated housed.
That's why these "building envelope" improvements are just as important to heating and cooling savings as the HVAC system itself.
We are your trusted HVAC contractor in Greenwich, Stamford, West Hartford, and nearby areas! We look forward to answering your questions!
Call 1-800-328-1081 or contact us online to schedule a free home inspection and heating and cooling estimate.
We proudly offer HVAC installation in Westport, Darien, Orange, and nearby areas such as Weston, Easton, Woodbridge, Newtown, Trumbull, Stratford, Danbury. Contact us today for more information about gas and oil heating, air conditioning, and boiler heating and repair-- and more!
| Home Insulation | | Heating & Cooling | | Radiant Barrier | | Water Heaters |
| Ductwork | | Air Sealing | | Windows & Doors | | Crawl Space Encapsulation |
Tom & Larry's Excellent Home Energy Show
Watch these videos about energy savings and what steps should be taken!

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