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What is a Central Heating and Air Conditioning System?

The modern residential central air system is a thing of beauty. It was first invented over 100 years ago and has in many ways not fundamentally changed. Your home's central system consists of 6 components all working together to keep you warm in the winter and cool during the summer. These components include: 1) Furnace (with Air Handler), 2) Condenser, 3) Evaporator Coil, 4) Ducts, 5) Thermostats, and 6) Air Filters. 1. Furnace + Air Handler The natural gas or electric furnace is the most recognizable component of a central heating and central air conditioning system. The furnaces' job is to...

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Why We Braze All of Our Copper Connections

Most people are unaware that there are 2 ways to connect the copper tubing for a ductless mini split installation. The two methods are: 1) a flare connection and 2) a braze connection. Flare Connection The most common method for a ductless mini split installation is the flare connection or the flaring method. Using this method, the contractor uses a tool to stretch the outer diameter of the copper tube to create a flare (see below). Once the flare has been created, the contractor will connect the bolts together to lock in the two copper pieces together. Advantages of the Flaring...

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How To Maintain Your Ductless Mini Split Air Conditioner

Ductless mini splits are becoming a popular choice for heating and cooling due to their energy efficiency and flexible zone control. In this post, I will talk about how you can maintain your ductless mini split for maximum performance. 1. Clean Out The Air Filters The air filters in your ductless mini splits can be accessed via the side of the indoor unit. A good rule of thumb is to open the filter and clean it every 3 to 4 months. If you do not use your ductless mini splits often, you can get away with cleaning the filters every 6...

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Guide to Choosing an Air Conditioner for Your Home

In this guide, we will introduce four types of air conditioners that are available in the United States. The goal of this guide is to present options for home owners so that they can make a more informed purchasing decision. The types of air conditioners that exist on the market are: (1) central air split systems, (2) wall or window AC units, (3) portable air conditioners, and (4) ductless mini splits. 1. Central Air Split Systems Central air split systems are oldest and most common system in use in the United States. Typically you would have a condenser outside that...

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Variable Refrigerant Flow (VRF) Systems

Variable refrigerant flow (VRF) systems, which were introduced in Japan more than 20 years ago, have become popular in many countries, yet they are relatively unknown in the United States. The technology has gradually expanded its market presence, reaching European markets in 1987, and steadily gaining market share throughout the world. In Japan, VRF systems are used in approximately 50% of medium-sized commercial buildings (up to 70,000 ft2 [6500 m2]) and one-third of large commercial buildings (more than 70,000 ft2 [6500 m2]).   See the full ASHRAE report.

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