411homerepair.com

Latest Articles

Juan Plumbing - 408 439 3263 California SF Bay Area

I'm only trying to be an advocate for a neighbor that is DISABLED and was taken advantage of in this SCAM. I feel the need to expose this thief...

on Oct 23, 2021

Top Ways To Boost Your Home's Curb Appeal

The exterior of your home is the first thing people see, and as everyone knows, first impressions matter. Because of this, you should never...

on Oct 22, 2021

Black Mold Inspection and Remediation in Your Home

Poor indoor air quality can overwhelm your home. Black mold is a primary indoor environmental concern for many homeowners. According to the...

on Oct 20, 2021

7 Common Mistakes to Avoid During Crawl Space Repair

Homeowners should never attempt DIY crawl space repair for, as improper repairs can leave behind damaged piers and beams. A damaged, weak...

on Oct 19, 2021

Best Area Rugs For Your Home or Office

Area rugs are commonly found in homes with hardwood flooring. They are ideal additions for hardwoods, oak floors, tiles, or laminates. They can...

on Oct 17, 2021

Attic Fans Cause Headaches for Plumbers

by Guest on Jan 13, 2016

Many homes have attic fans. These fans used primarily to help exhaust hot air from your attic keeping your home cooler in the summertime. Typically the fan is operated by a control that senses heat and humidity in the attic. As the heat and humidity rise the fan turns on sucking the unwanted heat out of your attic and replacing it with cooler air from outside keeping your home much cooler.

Sounds great right? Hold on just a minute before you rush out to have one installed in your home. There are a few things you need to know about attic fans.

When these fans turn on they remove air at a pretty fast rate. This rate is measured in C. F.M ( Cubic Feet Per Minute ). For every C.F.M the fan draws out of the attic it must be replaced with new incoming air from outside the home. Since air is being used to keep the house cooler there is a good chance it's summertime, the windows are closed and the air conditioning is on.

The theory behind this is when these fans are installed is that it will draw new air from other vents placed in and around the attic during construction. The problem is that most installers fail to measure the roof vents to see if they are equal to or greater than the C.F.M of the attic fan rating.

It's easy to run down to the local supply house pick up an attic fan, install it and think you just solved the homeowner's issues... Or you just created a nightmare! If the attic fan draws out 2,000 C.F.M and the additional roof vents will only allow in 1,000 C.F.M, the fan will be looking for other areas of the house to draw the remaining balance of air from.

Because most attics are not isolated from the rest of the house, the fan begins to draw from every nook and cranny of the house. If your home has an atmospheric vent water heater it will have a vent pipe leading to the outside of the home. Since all the windows are closed and the A/C is on guess where that balance of 1,000 C.F.M is going to come from? You got it! The water heater exhaust vent.

The next time the water heater burners start the carbon monoxide it produces will be leaching into your home instead of going outside. It can leave a local plumber scratching his head if they are not familiar with the depressurization of a structure. It can be frustrating knowing the water heater worked just fine in the wintertime but in the summer it's poisoning the occupants.

Correcting the issue on the plumbing side of things is easy. TURN THE ATTIC FAN OFF until proper make-up air can be supplied to the attic. The gas-fired water heater will begin to draft immediately.

Author

Guest

Guest

Sponsored Articles

Random Articles

How to Remove and Replace Broken Ceramic Tiles

Ceramic tile flooring has been popular for years, and the popularity continues to grow. Not only is ceramic tile flooring stylish and attractive,...

Floors / Tile / Hardwood

Top 4 DIY Accidents to Avoid This Summer

The warm weather is already upon us and something that we all have probably noticed is a barrage of householders hitting their garden and starting...

Safety / Security

Fitting Windows : Regulations You Need to Know

Since 2002, UK building regulations have applied to all replacement glazing, or “controlled fittings” as the law calls them – and it’s made it...

Windows / Siding

How Safe is Glass Pool Fencing?

Pool fencing requirements and safety regulations are very stringent in many countries so it is important that the panels you use do comply with...

Pools / Hot Tubs / Saunas

Three Signs It's Time for a Kitchen Renovation

Your kitchen is quite possibly the most important room in your entire house, and it's probably one of the busiest as well. Therefore, a lot of wear...

Kitchen / Bathrooms

Actions

Contact Us | Submit Article | 411homerepair © 2021