hvac installation: Do You Know What This Is? It's An HVAC Register! - 09/10/11 06:41 AM
Do you know what this is? It's an HVAC register!
This is a high-velocity forced air system, sometimes called a "mini-duct" system.
And the ducts are really small! About 2" wide. And the covers are very attractive!
Larger rooms can need more than one register! Very large rooms as many as 4 or 6.
These systems blow a lot of air. These registers are blowing a little over 1200 cubic feet per minute.
A register on a traditional system would be 400-600cfm.
Depending on where the unit is located, like in the attic, the registers can … (32 comments)
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hvac installation: "New Heat Pumps Only 2 Years Old!" - 07/19/11 08:02 AM
The good features of a home are often presented to prospective buyers. I have found that sometimes people will put together a list for me too, so I can tell what's new and what's not. I'm pretty good about determining that for myself, but people assume otherwise.
In this case there were two new heat pumps, both dated 2009, so they were installed about then, that were advertised. That's good!
Until I saw them. Actually I did not know where the second one was until I figured out it was jammed into a space behind another unit so tightly I couldn't … (12 comments)
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hvac installation: When An HVAC Register Blows No Air - 05/26/11 02:42 PM
Nothing unusual on a flip to find a new heating and air conditioning system. And such a new system often has new duct work as well. Such was the case in this house.
So, in this bathroom ceiling, I saw a new HVAC register. Looking inside I also saw new duct work.
But after turning on the system, and I checked again, there was NO air flow. Zip, zero, nada, as they say.
What do you say when an HVAC register blows no air?
Looking around further, there was not another single HVAC register in the ceiling. This was the only … (32 comments)
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hvac installation: Vent Tape - 04/22/11 07:11 AM
When HVAC duct insulation breaks, or you are trying to tape together two pieces to create one nice long tube you can use in new construction ***, it is best practice to use Vent Tape.
Yes, Vent Tape is the perfect product for such an application. It is MADE to tape vents together.
Be sure you use the right thing for the right job, and you will never go wrong!
This was the first time I have seen Vent Tape used, and...
Oh, wait a minute.
Now that I read it closely it isn't Vent Tape at all.
It's Venture … (18 comments)
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hvac installation: Duct, Duct, OBtuse - 03/02/11 08:50 AM
Have you ever played duck, duck, goose? Everyone sits in a circle, and one stands to walk around the circle touching everyone on the head. At each touch the word "duck" is said, which means you can remain sitting, or the word "goose!" If goose is said when your head is touched, you must chase the toucher around the circle, catching them before they get to your position. If you don't, you must sit in the middle of the circle until the chased person is finally caught.
Substitute the word "OBtuse" for "goose." OBtuse is an adjective, and means to be … (40 comments)
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hvac installation: She's (NOT) Gonna Blow, Captain! - 10/12/10 08:50 AM
One very important aspect of a pre-drywall inspection, is to check for proper distribution of HVAC systems. Modern HVAC distribution tubing includes a lot of flexible stuff, a slinky really, made up of a slinky-like spring, wrapped in plastic, surrounded by insulation and then another final layer of plastic.
Another thing to look for is how the flexible ducts have been treated. Slinkies, if you recall, were easy to manipulate. They could be smashed and come back springing!
At times these flexible ducts are wrapped so tightly around joists or roof rafters that they are literally crushed.
The more they … (43 comments)
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hvac installation: Trampo-Floor! - 08/15/10 06:55 AM
DATELINE: Northern Virginia – the purchaser of a new home was frantic to find a home inspector to try to evaluate why a floor in his home under construction moves up and down. The dining room floor bounces. And not a little bit!
Looking on the Internet, this purchaser was able to find a local home inspector. His popular website offered just the relief this purchaser needed. He determined to get in touch with the website’s principle inspector. Well, it’s only inspector!
Forensic Detective, aka Home Inspector, Jay Markanich, was called to the scene. The home’s purchaser noticed what he thought … (104 comments)
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