Posts Tagged ‘garage’

The things you find out in the garage, part 3: it’s not the makings of good indoor air

May 23, 2014

We’ve talked about the bad venting set up for this furnace and water heater and also about what it sits on in past posts. I’m not quite done with indoor air quality, and I’d like to draw your attention to another area of the duct work that is right out in the open.air leak insulation
While we look at this system in the garage, you can see that there was an attempt to insulate and to seal the duct work. The un-faced fiberglass wrapped around most of the duct work is stained in a number of places. This would be from the garage air being drawn into the system every time it runs. The mystery regarding duct tape is why we call it that, since it doesn’t seal ducts and It was on parts of this system.
Keep in mind that all of the observations were just from the garage, the area of the home you mayduct tape leaks walk through every day. Never mind what we found in the attic.
The happy ending to this story is that this homeowner was given a list of solutions to the problems we found. With a new system, measures were taken in the home as well that will mean lower energy bills, better comfort, and most important of all a healthier and safer home.

Thanks,
Jason

The Things You Find Out In The Garage: Part 2

May 7, 2014

Last week I showed you a venting system that wasn’t quite right, P1060856and mentioned the importance of having a certified technician review your HVAC and water heating systems. I wanted to cover a few more issues we discovered.

An important part of heating and cooling air is getting it to and from the home. This is what duct work is all about. In this system’s case, the plenum, or box where the return air from the home comes back to the furnace, also acts as a platform for this furnace and water heater to sit on.
Because it is where the furnace draws the air from the home, it is as you might imagine, connected to the inside of the house. And, as you can see in the second picture where the technician is looking into this plenum, there is a nice structural chunk of pressure treated wood, concrete floor and some moisture damage.
Pressure treated wood probably isn’t the best thing to have in your duct system, nor is dry rotted plywood, and this plenum is very much a part of the duct system.P1060858
It’s also not sealed. That means the garage is connected to the duct system and, therefore, to the home. Indoor air quality is important, and it should start with the air handling system. Stay tuned till next time!

Thanks,

Jason

The Things you Find out in the Garage

April 28, 2014

While visiting one of our locations, Young’s Air conditioning in Los Banos, I had the pleasure of joining their auditor on the discovery of a unique furnace venting arrangement. As you might imagine with combustion equipment, unique is not really a good thing.P1060853
To the untrained eye, this arrangement might look fine, everything’s connected after all. But even from a distance, this furnace and water heater set up, to even the slightly trained eye, looked wrong because…well it was.
Two exhausts into one may be ok if it is sized right and pitched correctly, but here is a natural draft water heater and a power vented “sealed combustion” into the same flue.
Power vented appliances are also called direct vent, implying they are directly vented to the outside, and should be, on their own.
IP1060852’m in awe over the connection where the PVC (used for lower temperature exhaust) is TAPED into the metal connector (high temperature exhaust) of the 6” flue.
Making sure combustion equipment is set up properly is only the beginning. Having certified and trained people to install and assess that equipment is important. Our advisors are BPI-certified for this reason.
I’ve got more to share, till next time.
Stay safe!

Jason.


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