FAQ's

Q:Whom should I contact for HVAC service and installation?

A:Any question concerning new products, equipment ratings, service or installation, should be directed  to a Cobra HVAC Technician as provided in the ‘Contact’ section of our website.   You can contact the company by telephone or via email utilizing the form provided on our website.  Please refer to our Home Page or Contact Page.

Q:What do rating numbers signify?

A:The U.S. government requires an efficiency rating of all heating & air conditioning equipment.  The rating reflects the percentage of energy efficiently used by an equipment, with a high rating indicative of a high efficiency. 

Q:What does SEER signify?

A:There are specific names assigned to various types of HVAC equipment which help to identify the efficiency rating of that equipment.  Air conditioning equipment is rated by the Seasonal Energy Efficiency Rating (SEER). 

Q:What does HSPF signify?

A:This is the name used for rating the efficiency of heat pumps.  It stands for Heating Seasonal Performance Factor. 

Q:What does AFUE signify?

A:This is the name used for rating the efficiency of gas furnaces.  It stands for Annual Fuel Utilization Efficiency. 

Q:What type of thermostat should I use?

A:This is a matter of preference and practicality.  Whether you chose to use a manual or electronic thermostat, either one will work just fine.  However, an electronic thermostat has been proven to be more efficient.  

Q:Should a thermostat be set to ‘auto’ or ‘on’?

A:It should preferably be set to ‘auto’ so that the fan operates only when the temperature changes. This is the most efficient setting.  

Q:How do I correctly size a unit for my home or office?

A:It would be best to call Cobra HVAC.  This is a complicated process since there are numerous factors to consider such as the living area, climate, number & type of windows installed, insulation, number of people utilizing the space, usage of the space, a type of equipment or machinery in the space.  

Q: Should outdoor units be covered in the winter?

A: It all depends on the type of unit and whether or not you have a heat pump which is used year-round.  Normally, the majority of the equipment made is designed to withstand the elements.

Q: Is it o.k. to plant shrubs near an outdoor unit?

A:Yes, however, we recommend that shrubs and other plantings be at least 18-24 inches away from the unit. This allows for adequate air circulation in and out of the unit to prevent possible overheating and costly maintenance. 

Q:What is a ductless split system? 

A: A ductless split system to some degree is a blend between a central air system and a window mount unit.  It can be installed in an area which does not have ductwork and in which installing ductwork would be impractical.  The advantage is that the unit is much quieter, more efficient, and has more capacity.     

Here are a few helpful sites which offer insight as to how the following equipment in your home or business work:

How do your a/c unit and/or furnace work?

How does your boiler work?