HVAC Do's And Don'ts For The Average Person
A properly functioning HVAC system is truly a central component to a good home, so it's crucial that your HVAC technology and systems are kept up to snuff. A lot of homeowners spend money fixing them up when broken, but could have avoided such issues if they had maintained them properly. The following article discusses what you need to know about HVAC systems.
If you must hire someone to help you out with your HVAC system, be sure to learn about all of the requirements your state has legislated regarding licencing and insurance. You need to be able to ask anyone you plan to hire if they meet these requirements before you hire them.
Clean your permanent air filters or replace disposable ones every single month. If you have the choice, an electrostatic is the best option on the market today. Be sure to turn off your unit before you change the filter as it should never be run without a filter in place.
Make sure you ask for an estimate in writing before choosing a specific HVAC vendor. There are a lot of moving pieces when it comes to purchasing these big items. You'll want to compare not only the cost of the equipment, but also the set up and the overall energy costs.
Clean the fan blades and coils on the condenser fan every spring. First, turn the power off so nothing moves when you're working with it. Then, take the grill off, pull the blades out, and gently clean them as well as the unit itself.
You should be sure to change the air filter of your HVAC system once every six months. Neglecting to do so can cause dust particles to clog the air ducts. In turn, your system will not work properly and you will find your bills going up. It's worth spending the time to clean the filters.
If you want to cool your home in the summer without using your air conditioning on full, consider installing fans in your home. An attic fan can blow hot air out while sucking in cool air into your basement, and ceiling fans help distribute the air in your rooms evenly.
Manage the heat flow into your home with window coverings to help out your HVAC system. In the warmer months, use drapes, curtains and blinds to block out sunward facing windows to keep heat from building up through the greenhouse effect. Alternatively, make sure that sunlit windows are letting light and warmth in during the colder months.
If you have a window air conditioner without a timer, use a regular outlet timer to control when it is on or off. These are the same ones you use for holiday lights, so all you have to do is plug your air conditioner into the timer and set it to cool you during the day.
If you have fans in place to help make your HVAC more efficient, be sure that they're turning in the right direction. They should be pushing air downwards over the people in the room to help cool their skin. If it's blowing upwards, all it does is push hot air into the room.
Manage the heat flow into your home with window coverings to help out your HVAC system. In the warmer months, use drapes, curtains and blinds to block out sunward facing windows to keep heat from building up through the greenhouse effect. Alternatively, make sure that sunlit windows are letting light and warmth in during the colder months.
Always ask for references before you allow anyone to start doing work on your HVAC system. Call several of them to make sure that they are legitimate. Many people take the word of the contractor when it comes to customer satisfaction and that can prove to be a mistake in the end.
It's easy to see that HVAC isn't hard to get into if you just take your time with it. In the end, you won't have too much trouble if you put what you've learned here get more info to good use. Don't take our word for it and give it a try yourself before you do anything else!
Ancient 'air-conditioning' cools building sustainably
How did buildings keep cool before the invention of air conditioning? As architects consider how to reduce the energy demands of new builds, some are turning to the past for simple, low-tech solutions.
At the height of summer, in the sweltering industrial suburbs of Jaipur, Rajasthan in north-west India, the Pearl Academy of Fashion remains 20 degrees cooler inside than out -- by drawing on Rajasthan's ancient architecture.
While the exterior appears very much in keeping with the trends of contemporary design, at the base of the building is a vast pool of water -- a cooling concept taken directly from the stepwell structures developed locally over 1,500 years ago to provide refuge from the desert heat.
Award-winning architect Manit Rastogi, who designed the academy, explains that baoli -- the Hindi word for stepwell -- are bodies of water encased by a descending set of steps.
"When water evaporates in heat, it immediately brings down the temperature of the space around it," he says.
While traditional stepwells often go many stories below ground level, Rastogi's go down just four meters. However, the effect is the same and -- like the ancient Mughal palaces before it -- the academy enjoys its own microclimate.
Read more from Road to Rio: The slums of Mumbai: A model of urban sustainability?
Rastogi wonders: "How did they think up something so elaborate and yet so simple in its basic philosophy?
"How do you begin to think that you can dig into the ground and use the earth as a heat sink, have access to water, put a pavilion into it so that its comfortable through the year? It takes a lot of technology for us to think up something that simple now."
But it's not just the stepwells that are involved in this process of "passive cooling" -- the general term applied to technologies or design features that cool buildings without power consumption.
The whole building is raised above the ground on pillars, creating an airy and shaded pavilion that is used as a recreation and exhibition space. Here, according to Rastogi, the walls are made from a heat-absorbing material that creates a "thermal bank" -- so the warmth is slowly released at night when the temperature drops.
Centuries ago, latticed screens or "jaali" filtered direct sunlight into the palaces. The effect was decorative and helped reduce the heat. Likewise at The Pearl Academy, a latticed concrete screen runs the length of the building and provides a cooling outer skin.
"We've been able to demonstrate that good green building is not only cheaper to run; it's not only more comfortable to live in -- it's also cheaper to build," says Rastogi.
The success of the academy's eco-design has had an impact. Regulations -- based on these passive cooling techniques -- were introduced last year for all new Indian government buildings.
https://docs.google.com/presentation/d/1lsY92_nmCH1u72gjMYI4ZChOCJLeKAXLe9ieG5qDeR4/edit?usp=sharing