HVAC Refrigerants

What is Refrigerant and Why Has it Gotten So Expensive?

Refrigerant is an important substance or mixture that can be used in HVAC. This substance usually comes in liquid form and it will be converted to a gas.

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All About Rooftop Units (RTUs)

There are a lot of buildings that are using rooftop units these days. Rooftop units (RTUs) are commonly used for commercial HVAC systems. Learn more here!

Central Air Outdoor Unit

Should I Choose Central or Ductless Air?

When you are planning to install the best air conditioning system in your home, you are going to have two main choices. They are central air or ductless air conditioning systems.

Fiberglass Filters

Selecting Air Filters for Your HVAC Unit

If you want to take good care of your AC, you should take a look at the filters inside your unit. Read more here!

Geothermal Heating Diagram

What is Geothermal HVAC?

Many people are interested in using geothermal HVAC when they hear all of the benefits it offers. Read the most important factors in our latest blog.

Boiler Buderus GC144

Why We Choose Buderus Boilers

One of the most popular home boiler brands that you can buy, and a frequent Evergreen Mechanical recommendation is Buderus Boilers.

Ameristar Family of Furnaces

Ameristar Furnaces, Our Choice

Ameristar Furnaces is one of the most popular brands in the heating and cooling space for residential properties. Learn why we recommend Ameristar!

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Are Bock Water Heaters Right for Your Home?

Today we take a look at Bock Water Heaters. Call Evergreen Mechanical Contractors for all water heater replacement and installations.

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A Look at the Modine Water Heaters

Evergreen Mechanical Contractors in Hamden are your Connecticut water heater experts. Learn more about Modine here.