You must be looking forward to a long vacation and wondering how to manage the power backup system in your home. Bad weather conditions or other factors can cause interruptions in homes, making it difficult for people to use electrical appliances, light up their homes or for heating and cooling systems. With today’s world becoming dependent on technology, power supply that once only provided electrical energy for lights, appliances, and heating and cooling systems has to now additionally power computers, security systems and smart-home automation.
Therefore, it is important to have an emergency backup power system for your home that would allow your devices like home office computers, telephones, refrigerators, medical devices and security systems to have continued access to electricity. Moreover, due to this additional usage of electric services, there have been prevalent power outages in many parts of the United States. Of course, simple candles would help light up homes for a couple of hours during power outages, but would not be of much use in other basic necessities like heating and cooling systems, computers and security systems.
It is always recommended to have a solid power backup in place well before experiencing or going through the hassles of power outages. Frequent power fluctuations can also affect the quality and efficiency of your basic needs like refrigerators, lighting, computers, attic fans, heating and cooling systems, and security systems. All this unnecessarily adds up on to the costs for your home. Let us look at the pros and cons of the commonly used battery backup units and generators by homeowners.
Battery Backup Systems
Battery backup systems are very convenient, especially when you are away from home for a while. They may be a little more expensive than generators, but are worth the investment. They consist of batteries that are deep-cycle storage cells and come in banks or groups. An inverter is necessary for a battery backup system in order to convert direct current (DC) to alternating current (AC) for powering homes.
Advantages:
• They are a better alternative to generators in terms of efficiency.
• They include safe indoor installation.
• Batteries do not make any noise.
• Backup power systems can provide immediate electrical power to critical loads during natural or other disasters.
Disadvantages:
• The durability of battery systems is limited, since they provide power only when charged. One example is the mechanism of how a charged battery can operate a pump for days and then get recharged automatically. Generally, a pump sentry interface is set up between the pump and the AC electrical supply. During the supply of electricity, the pump sentry charges a battery and monitors the power line for any power outages. When power fails, the power that is stored in the battery is converted by the power sentry to AC power. This power is utilized in the absence of electricity. When the electricity is restored, the AC utility power is used to operate the pump and simultaneously the battery is recharged in order to facilitate the next power failure.
Generators
The difference between a generator and a battery backup is that a generator creates new energy, whereas in battery backup systems the chargeable batteries control and store the existing utility power for any emergencies that may pop up at any point of time. The fuels used for household generators are gasoline, diesel, propane and natural gas.
Advantages:
• They are affordable.
• They are portable, convenient and can be used for short periods.
• Maintenance is easy.
• Propane and natural gas are environmentally and economically sound fuels.
Disadvantages:
• Generators are usually very noisy.
• The cost of fuel is expensive.
• Stored gasoline and diesel can cause fire hazards and become gummy and contaminated over time.
• It causes pollution due to smoke and smell.
• Generators are not very compatible with cold weather conditions.
As you can see, battery backup units have an overall advantage over generators. However, it is recommended to go through the technology and cost involved in different types of battery backup units before buying one to suit your home needs.
References
1. http://worldvillage.com/the-advantages-of-a-battery-backup-system
2. http://www.otherpower.com/otherpower_gasbattery_gensets.html
3. http://electrical.bobvila.com/Article/290.html
4. http://www.toolbase.org/Technology-Inventory/Electrical-Electronics/emergency-power-backup-systems#benefits
5. http://www.secamerica.com/pump_sentry.html
Masonry construction has always been known for its durability, as it is able to sustain harsh conditions depending on the weather and geographical location. It also gives an attractive appearance and requires relatively low maintenance. The use of materials in masonry construction ranges from stone foundations to brick walls. Since some masonry foundations tend to be susceptible to accelerated deterioration, they were either painted or covered with stucco for protection. In addition to the weather and location, water can be a primary cause for the deterioration of masonry foundations.
You must be wondering how a closed area like a basement would invite chances for dampness. When the level of humidity is high, the amount of moisture increases in the atmosphere. The condensation of moist, warm air on cold interior wall and floor surfaces is more than enough to create dampness in your basement. Wet walls, foggy windows and tiny droplets on cold surfaces are good signs of high levels of humidity. When air is able to hold water vapor at a particular temperature, the relative humidity is 100%. If it goes beyond, that is when condensation takes place, causing dampness.
A basement or a crawl space is usually a closed area and is not frequently used as compared to the other rooms in the house. This reduces the amount of air entering into the basement. A musty odor in the basement develops due to lack of circulation of air. This can be found out by opening the windows in your basement and switching on the exhaust fans on one fine day to allow air circulation. If the bad odor in your basement does not exist, then you have the answer to your problem!
The chances of water penetration in the basement are always high, since it is located below the ground where water gets accumulated. There are basically two ways in which water can enter into the basement, through the foundation walls and the basement floor. When water gets soaked in the soil, there is always pressure of the heavy water to push through the foundation walls. If there are any cracks or joints on the walls, then water is sure to pass through depending on the quantity and pressure of water against the walls. Stains on the concrete, paneling of a finished basement and efflorescence are common indicators of water penetration. Corners of basements are also popular for water penetration caused by the discharge of rain water from the rain down spout in this area.
Humidity is a result of relative humidity where moisture is suspended in the air. A dehumidifier is a device that helps reduce humidity in any building or room by removing moisture from the air. Dehumidifiers play a vital role in preventing mold, bacteria and biological allergens, musty odors, and furniture, carpeting, storage box mildew damage that arise when humidity levels are above 50%.
Dew point, or otherwise better known as dew point temperature, is the temperature at which the liquid and gaseous phases of a material present in a gas, such as water in air, are in equilibrium at a given gas pressure. In the case of water, the temperature at which both evaporation and condensation of water take place are the same. An interesting point to note about dew point is that it is related with evaporation, condensation and relative humidity.
Relative Humidity
4. Vehicles
Household activities such as cooking, washing and drying clothes are responsible for the excess moisture present in the air within your home. An average family creates around 20 pints of water vapor per day. This can be usually seen in the form of fog, mist, dew or frost in the atmosphere and plays a significant role in the formation of clouds, rain and snow.
(a) Grading: One would wonder as to what the soil has to do with a drainage system. Proper grading of the soil around the house would eliminate the entrance of water into the basement. Creating slopes would drive away water before it reaches the basement walls. In fact, this method would not even require a basement drainage.