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Air Quality

How Clean is the Air in Your Home?
We are now at the end of Winter and your home has been closed up all season. It’s time to look at the air quality in your home to see how you can breathe a little easier. As you look to turn on your air conditioner for the season, be sure to have your system checked first. An annual check-up for your air conditioning unit will give you greater efficiency, it extends the life of your equipment and it improves …
Energy Efficiency

What temperature is too cold for a house?
Many people in the Quad Cities have had minor (and major) freak-outs upon looking at our heating bills this winter, particularly those who use natural gas, which is most people in this area. As KWQC warned in October, later verified by the Quad City Times, and the final proof in those heating bills that triggered a lot of freak-outs, natural gas prices have nearly doubled since the previous winter. So many of you may be wondering, what temperature is too …
Furnace

Meet Francisco Troche
How time flies! It has been almost nine years since Francisco joined the team at Doug’s Heating and Air Conditioning. Francisco started working for us as an installer in 2014, right out of trade school. After he graduated from Moline High School, Francisco went to the Midwest Technical Institute. When he finished there, he joined Doug’s and has been with us ever since. It was clear from the start, Francisco was going to be a valuable addition to the team. …
Air Quality

What are the most common indoor air pollutants?
One of the most wonderful things about the Quad Cities is the variety of homes in our neighborhoods. There are a lot of areas of the country where every house in every neighborhood looks the same, as if they’ve been stamped onto lots with cookie cutters. We have a lot of beautiful new homes in the area, and we have a lot of wonderful old homes. Whether your home is a hundred years old or you just built your house …
Furnace

Can an old furnace explode, and how can I tell if my furnace is dying?
Fireworks are fun outside, not so much indoors! Do you have to worry about your furnace causing indoor fireworks? The short answer is, not likely. Heating fires are more often caused by space heaters than furnaces. Modern furnaces have too many safeguards in place, so explosions are not something most people should worry about. Even if your furnace is unlikely to explode, that does not mean it is necessarily healthy. Hopefully, everything is fine, but it is worth looking for …
Air Conditioning

Key Terms and General Information for HVAC
  We all have to start somewhere when gaining knowledge on a complex subject; we have all been there before. There is no need to stress about sounding like you know what you are talking about in the heating and air conditioning world, use this blog as your guide. Heating, Ventilation and Air Conditioning (HVAC)  has the goal of creating a comfortable and acceptable indoor air quality.    ACH  Air Changes Per Hour is a measure of the air volume …
Heating

How to Remotely Control a Boiler
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Heating

Selecting Pipes for Heating Radiators
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Heating

Expansion Tanks In Heating Systems
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Heating

Autonomous Heating of a Private House
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Heat Pump

Comparison of Horizontal and Vertical Water Heaters
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Heat Pump

Bypasses in Heating Systems
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