History of Manholes
When underground sewer lines were originally built, engineers only provided for narrow holes to view the flow. However, workers needed to be able to get underground in order to be able to perform repairs. In addition, sewers need oxygen to prevent the growth of bacteria that leads to rotten egg smells. Therefore, manholes were designed and added to wastewater systems. Their covers provided for easy entry and exit. The perforations allowed for manhole ventiliation.
Need for Additional Ventilation
In the underground, confined space of the sewer, workers encounter reduced oxygen supply. They also are exposed to hydrogen sulfide, a sewage gas that negatively impacts health. Workers may complain of irritated eyes, difficulty breathing, and dizziness. In extreme cases, workers may die. Ventilation systems supply fresh air to the underground space.
Employers need to comply with OSHA regulations, including the Construction Confined Spaces Standard. The standards require testing of the air in confined spaces for oxygen levels, toxicity, and explosive potential. Carefully documented plans protect workers during the time that they spend underground.
Options in Equipment
Part of the worker protection strategy may involve the use of blowers and ventilation systems. They often consist of tube duct systems that travel into the manhole. Many popular options are portable, making it easy for workers to transport from place to place across a job site. They also usually collapse into a smaller package for easier storage. Some versions are made of recyclable materials for companies looking to reduce their carbon footprint. Blowers can provide heated air, if desired. If a ventilation system needs to extend for some distance down a tunnel, the tubing lengths may be connected to each other with duct to duct connectors.
Keeping workers breathing safely in sewer lines requires testing, monitoring of the air, … Read More...
Artwork continues to take on new forms in this day and age. Although the traditional paintings, monuments and ceramics will always be timeless, today’s artist is finding new ways to express themselves. They are utilizing some rather unusual mediums in the process. For example, many functional fine architectural pieces can take on the shape of a fireball, a gate and screen or many other unique shapes. Remarkable architectural pieces will make a property truly stand out. Consider these elements:
Functional art can take on a decorative flair.
Today’s functional fine art can definitely take on a decorative touch. Normally this artwork consists of mediums such as weathered steel or corden steel. Either way, a skilled artist can turn a few scraps from a construction yard into a thing of beauty. Many pieces have been used to make unique table top pieces or even decorative lanterns.
Functional art can take on unique thematic imagery.
When people think of steel architectural artwork, for whatever reason they usually do not think of something complicated and detailed. That is a bit of a shame, because steel artwork can incorporate a very fine design. One example of this would be some of the steel gate art that is common in some upper-class areas. One piece in particular showcased a group of turtles at play among a marsh. You can bet this unique piece definitely has a great conversation history as visitors to this particular home sit around it! This work of art is currently being used a fireplace screen. Along these same lines, many individuals have enjoyed a steel fireball design for their outdoor patio. These fireballs illuminate the sky, and they have gratifying designs such as a unique “stars and stripes” design. This particular example showcases an ornate American flag draped in an enjoyable … Read More...
A heat pump is a very beneficial investment for your home. As with any other part of your home, there is ongoing maintenance that will need to be routinely performed on your heat pump. Some of these tasks can be completed by the homeowner on their own. Others would benefit from a professional looking at them. Someone who deals with heat pump maintenance on a daily basis. These items should be done once per year in order to keep your heat pump working efficiently and properly. Let’s take a look.
All ductwork should be inspected for leaks. These leaks can reduce the amount of conditioned air that is flowing into your living space. This area should be checked for gaps, cracks and crushes. If there is an issue, the problem should be properly sealed up. Professional materials should be used to ensure the job is done properly. Slapping some duct tape on the area isn’t going to rectify the issue. The flow of air through the ducts and through the heat pump itself should be routinely measured. This will determine if the system is still structurally sound.
It is important that the electrical system in your home and heat pump are working properly. This can affect the efficiency of your heat pump. You can also be faced with a fire hazard if there is a faulty connection present. A professional will check the motor, belts and electrical wires for any sign of damage. It is also important to make sure that the thermostats that are set to the heat pump system are functioning properly. The heating system and cooling system should shut down automatically when necessary.
If you are in need of routine heat pump maintenance newport news vaor suspect you have an issue going on … Read More...
A Chilly Problem
Perhaps one of the worst things that can happen is sitting at home after a chilly day of winter only to find that your heater has kicked the bucket. Not only is your home steadily starting to freeze, but you know for a fact that no amount of hot showers is going to keep you warm through the night. In fact, deaths resulting from the cold are not unheard of during the winter. The elderly are especially those who fall victim to cold’s deadly grasp. Unable to get out of bed without assistance or other problems, they’re unable to heat their bodies, and as a result, they end up perishing from the cold.
Since this could happen to anyone on a particularly frigid day, you should keep in mind these signs that your heater may be in need of heating repair Conroe TX.
1. Cool Air
Perhaps the most obvious indication that your heater is starting to break down is if there is cool air coming out of your vents. Even after you have turned up the heat if you notice that the air isn’t becoming warmer, then your heater is in need of repair. You don’t want to make your home any colder, so you should turn off the furnace and either find another place to stay for the night or use a wood stove furnace if you have one.
2. Odd Noises
Unless your room happens to be close to the furnace, this might be a sign that you can easily miss. The sound of grinding or clunking in your furnace could be a major sign that it needs some tender love and maintenance. While your furnace can make odd sounds as it starts and stops, it’s the noises that continue to be made … Read More...
A chimney inspection can help you maintain your chimney in an effective way. All companies that provide inspections offer several service options. The most common option is a level-one inspection because it involves fire prevention procedures and procedures that are designed to boost heating efficiency.
Level-One Inspection Procedures
During a level-one inspection, an inspector examines a chimney without using advanced tools. Instead, all procedures are implemented inside the home with a flashlight. An level-one inspector has one goal, which is to find things that can impact how well a fireplace operates. To accomplish this, an inspector searches for
- Tile damage
Each of these hazards can cause problems in a chimney shaft. Proper inspections are valuable because they prevent common chimney problems and provide perks.
When a fire burns in a fireplace, thick smoke floats up the chimney shaft. As the cloud moves around a narrow shaft, soot generates on the wall. Soot is dangerous because it contains flammable carbon particles. Inspectors fully understand how to pinpoint and eliminate soot that’s a fire hazard.
Fireplaces are great heating options that can raise temperatures in a space at a low cost. However, when a chimney has a clog that prevents air circulation, a fire will struggle to heat up an environment. When this happens, a typical homeowner will use alternative heating sources to stay warm, such as an electric heater or an HVAC system. The problem is that traditional heating sources use electricity to produce heat, and when a heater or air conditioner operates for several hours, energy costs will increase. Wood-powered fireplaces don’t pull energy to heat a home; however, they need plenty of air because oxygen fuels the flames. The best way to maintain proper air circulation in a chimney shaft is by … Read More...