Posts Tagged ‘McConnell Creek’

What to Do About Cool Spots: A Guide From Laidlaw

Friday, September 2nd, 2011

Sitting on your couch watching TV in your Laidlaw home should be an enjoyable experience, especially after a long day at the office. But, if your air conditioner deposits an abnormally high volume of cold air directly onto your couch, making you shiver despite the 90 degree heat outside, you may have a cool spot.

Cool spots are an unfortunate side effect of modern air conditioning technology. They occur when HVAC systems are improperly sized or ductwork is improperly installed. Other factors like insulation, vent configuration or window placement can also contribute to the presence of a cool spot (and possibly some hot spots). So, what can you do about it? There are a few options, starting with a quick inspection of the space.

Checking for Common Problems

Your inspector will check a number of things. Most importantly, they’ll measure the size of your HVAC system and compare it to the dimensions and particulars of your house. Usually, in the case of cool spots, the problem is directly related to an oversized system. When it turns on, even for a few minutes, it produces more cold air than is necessary, flooding your home with cooling. The thermostat recognizes this and the system shuts off soon after turning on. As a result, you’ll feel fluctuation between cold and warm as the system fails to properly condition the space.

Modern systems are sized for your house at 100% capacity. So, when the system turns on, it should stay on for a substantial period of time, keeping your home cool. Turning off and on frequently is bad for the system and wastes energy (plus it produces those pesky cool spots). Keep in mind that hot spots can also occur if the system isn’t powerful enough.

Your inspector will also look for vent placement and duct configuration. Improper placement of vents can lead to pooling of cool air that creates cool spots. By checking for potential problems in the layout of your HVAC system, an inspector can determine if new vents or ducts are needed to solve the problem.

Fixing the Cool Spots

For now, you may just want to move to another part of the house. Cool spots rarely affect the entire space – they tend to cluster around vents and outlets and can usually be fixed by resizing or adjusting your system. However, only your contractor can tell you for sure what the best solution will be for your air conditioning issues so make sure to schedule an inspection.

Tags: , , ,
Posted in Air Conditioning | Comments Off

Choosing an Environmentally Friendly Refrigerant for Your Air Conditioner in Victoria

Monday, August 29th, 2011

For years in Victoria, we heard about how bad air conditioners were for the environment. Specifically, the liquid used in them to remove heat from air in your home tended to eat holes in the Ozone layer. Today however, air conditioners (along with every other appliance or device that uses refrigerant) have been upgraded to work with newer, better chemicals.

R-22 Refrigerant

While R-22 refrigerant is still used in devices sold today, it is being gradually phased out. According to the Montreal Protocol, R-22 refrigerant will no longer be allowed in new devices as of January 1, 2020 in the Canada (though it can be used to service existing devices via recycled or reused refrigerant). While the most environmentally damaging refrigerants such as HCFC-141b have been removed from the market, R-22 is still considered harmful to the environment if allowed to enter the atmosphere.

R-410A Refrigerant

So, if R-22 will soon not be permitted (and is not an environmentally friendly option), what is? Currently, the most common refrigerant used in new residential air conditioners is R-410A. It is one of the least damaging to the environment (and human health) and which could be used as alternatives to R-22. R-410A is a blend of different HFCs that don’t deplete the ozone. Sometimes called Puron, Forane, or Genetron AZ-20, R-410A is a good choice if you’re having a new system installed.

Other Alternatives

Of course, because R-410A is a hydrofluorocarbon, it does contribute to global warming and therefore is a risk to the environment, albeit in a much smaller capacity than older refrigerants. Recently, the EPA approved the use of HFO-1234yf – a chemical that pollutes 99.7% less than the current refrigerant used in car air conditioners. Whether it will be used in homes and commercial spaces remains to be seen, but the technology is advancing rapidly, allowing us to stay cool without sacrificing our planet’s health and future to do so.

Another alternative is to invest in an evaporative cooling system rather than a traditional air conditioner. These systems use no HFCs at all and therefore have zero impact on the ozone layer or global warming (other than the electricity they consume). They also use 80% less energy than traditional air conditioners. If you live in a dry, low humidity climate they are a great option.

Tags: , , , ,
Posted in Air Conditioning | Comments Off

Green House Gasses and Air Conditioners

Friday, July 1st, 2011

There’s simply no way around it: the air conditioner you probably depend on all summer is emitting a constant stream of greenhouse gasses contributing to the warming of the Earth. While it’s true that the coolants used today, hydrofluorocarbons (HFCs), are much less damaging than the chlorofluorocarbons (CFCs) initially used in air conditioning, they are still harmful to the environment.

Environmentally Friendly Coolants

Recently, research has led to the development of more environmentally friendly coolants. One in particular, HFO-1234yf, is scheduled to be introduced for use in the air conditioning systems of all GM cars beginning with the 2013 models. This is a step in the right direction, but much more needs to be done to address this growing problem before it’s too late.

Electricity and Carbon Dioxide

The use of environmentally friendly coolants will only go so far towards curbing the environmental impact of air conditioning. That’s because air conditioners are universally powered by electricity, and electricity is almost universally produced by the burning of fossil fuels like coal. When coal is burned, it generates a great deal of carbon dioxide, a substantial pollutant on its own.

An Intensifying Cycle

Of course, the more carbon dioxide and other greenhouse gasses are introduced into the atmosphere, the hotter the planet will become. And as the average temperature rises, air conditioning will be used more and more to combat these effects. This is a cycle that could quickly spiral out of control if something is not done to disrupt it.

What You Can Do

There are several things you can do if you’re concerned about how your air conditioning usage impacts the environment. First of all, make the switch as quickly as possible to HFO-1234yf or a similarly environmentally-friendly coolant when it becomes available. And remember that the air conditioning in your car counts too.

You can also go a long way towards reducing your contribution to greenhouse gas emissions by keeping your overall energy consumption down. Try relying on other, natural methods of cooling your home as much as possible. And when you do turn on your air conditioner, make sure you use all of the energy being consumed as efficiently as possible.

That means keeping your unit in good shape to maintain its energy efficiency and making sure that your home is properly sealed and insulated so your air conditioner doesn’t have to work overtime maintaining a comfortable indoor temperature.

Tags: , , ,
Posted in Air Conditioning | Comments Off

What is the COP and Why Is It Important?

Wednesday, June 29th, 2011

If you’ve been researching air conditioners, you’ve probably seen all sorts of numbers associated with each model. One of these numbers is the Coefficient of Performance (COP). While it’s good to gather as much data as you can before you make a purchasing decision, you also need to know what that data means if it’s going to help you make the best selection possible.

Measuring COP

Calculating the COP for any air conditioning model is relatively simple. The number you see displayed on the box is the ratio of energy input to cooling output. For the most part, the air conditioners you’re probably been looking at have a COP of between 2.5 and 4.0, although newer models are beginning to appear with COPs of up to 5.0.

The higher the COP, of course, the more efficient the air conditioner, so it makes sense to take this number into account when you’re making your purchase. You should also keep in mind, though, that the COP is not a constant measurement. The warmer it is outside, the lower your unit’s COP will be. However, this is standard across all units, so a relative COP comparison is still a viable evaluation method.

If you’re not sure what COP you should look for or whether a lower number will be effective for your home (especially if you only need to cool a small space), you should talk to a professional who can help you match the right COP level to your particular living space.

Improving Efficiency

While it’s always a good idea to get an air conditioner with the best energy efficiency ratings possible, that’s not the only thing you can do to reduce your energy usage and keep your cooling costs down. For instance, there are plenty of ways to keep your home naturally cooler without even turning on the air conditioner.

Even when you do need to flip it on, anything else you can do to reduce the indoor temperature will make it easier for your air conditioner to keep your house comfortable. So put up some awnings, run the ceiling fan and close the blinds to block out that harsh afternoon sun. The more you can do to reduce your indoor temperature naturally, the less your air conditioner will have to do, and the lower your cooling costs will be.

Tags: , , ,
Posted in Air Conditioning | Comments Off

Heat Pump Filter Care

Monday, April 4th, 2011

On the whole, heat pumps are efficient, durable and effective. They are built to run all year round without needing any more maintenance than your average furnace or air conditioning system and they have an average lifespan comparable to those other types of home comfort systems as well.

That’s not to say that there aren’t things you can do to keep your heat pump in good working order, however. Keeping up with the professional maintenance visits is an important step to take along these lines to be sure, but there are also some other things you can do on your own as well to help ensure the continued efficiency and health of your heat pump system.

Proper filter care is an important part of keeping your heat pump working the way it should. If you don’t have a heat pump yet but are thinking of getting one, make sure you have the installation technician show you where the filter is located and how to replace it.

If your system’s already been in place for some time, you can still find out how to care for the filter from your annual maintenance technician or you can probably even find it on your own by taking a close look at your heat pump. The filters are meant to be removed on a regular basis so they’re typically not hard to get to. However, you should always be sure that all of the power to your heat pump is turned off before you open it up to try and find, replace or clean the filter.

Most heat pump filters are meant to be changed or cleaned about once every 90 days or so. However, the specific requirements for each system can vary considerably, so you should be sure to find out what is recommended for the model of heat pump that you have.

Also, you’ll want to know what type of filter you have so that you can purchase the appropriate replacement. The model number for each filter should be clearly printed on it, so simply slide your current filter out and make note of the number so that you can purchase the correct type as a replacement.

Most heat pumps have replaceable filters, but some still do have permanent filters that are meant to be cleaned and then returned to service. If you have one of these types of filters, be sure to read the instructions for cleaning carefully before proceeding.

Tags: , , , ,
Posted in Heat Pumps | Comments Off

Is a Heat Pump Right for Your Home?

Tuesday, February 22nd, 2011

Deciding which type of home comfort system to go with can be a difficult process to navigate. There are a ton of factors to take into account including how much you will be using the system, what type of fuel you mainly rely on and what the specific climate is like where you live.

Heat pumps are a great home comfort solution for many people but they aren’t always the appropriate choice. However, there are many benefits to going with a heat pump system, so this is certainly an option you should keep in mind as you evaluate your options.

Heat pumps work by extracting heat from the air in one place and then transferring that heat to another space. For instance, in the winter, heat pumps take heat from the outside air and pump it into your house. In the summer, on the other hand, your heat pump will be able to take heat from your indoor air and pump it back outside, thereby keeping your home cool and comfortable.

Heat pumps are also extremely energy efficient because they don’t actually have to generate the heat they pump. Unlike furnaces, which take in fuel and convert it into heat, heat pumps simply harness the heat that’s already there, making them by far the more energy efficient option.

Another benefit to heat pumps is that they maintain a more constant temperature than many other types of heating systems do. Rather than pumping in a big blast of hot air and then waiting until the temperature indoors falls below a preset level before doing it again, heat pumps provide a relatively constant stream of warm air.

The initial amount of heat is smaller than what you might be used to from a furnace, but the cumulative effect means that you’ll be able to enjoy a much more consistently comfortable indoor environment.

It is important to evaluate the climate in your area before you decide to purchase a heat pump, though. These systems are extremely effective at heating and cooling your home as long as temperatures stay above the mid-thirties.

Below that, you may need to install some type of supplemental heating in order to keep your home warm enough on those really cold days. So if you live in an area where temperatures routinely dip below freezing for large portions of the winter, a heat pump might not be the most sensible solution for you.

Tags: , , , , , ,
Posted in Heat Pumps | 1 Comment »

Why Does My Garbage Disposal Leak, Grind Poorly and Make a Lot of Noise?

Monday, February 7th, 2011

It is definitely convenient to have a garbage disposal in your kitchen. They make doing the dishes and getting rid of food waste much easier. But just like any other appliance or piece of equipment in your home, your garbage disposal can sometimes develop a problem that causes it to leak or perform inadequately.

Leaky garbage disposals are certainly no fun to deal with. There are several reasons why garbage disposals can develop a leak. There could be an inadequate amount of putty or sealant at the joint where the garbage disposal connects to the drain pipe from the sink. A leak can also spring from that area simply because the bolts holding the two pieces together are not securely tightened.
The point where food and waste exit the garbage disposal and move into the main drainage system is another spot prone to developing leaks. These types of leaks are similar to those that occur between sink drain and garbage disposal and can be remedied in the same way.

In general, the key to dealing with a garbage disposal leak is to locate the source. This will most often be where two pipes come together or where the pipes join the unit. However, as your garbage disposal ages, it is more prone to developing cracks in the body of the unit itself. When this happens, leaks can develop anywhere there is a seam or break in the body of the garbage disposal itself. With this type of leak, the only thing to do is to replace the garbage disposal with a new one.

Leaks are not the only problems that can develop in a garbage disposal either. Sometimes you may notice that your garbage disposal is making an unusual amount of noise when it is turned on. This is often the result of something getting in there that should not have, so you should not continue to run your garbage disposal. Turn off all power to the unit and see if you can reach or see into the garbage disposal to determine what is causing the problem.

If your garbage disposal is not grinding well even though it seems to be rotating fine, you may not be running enough water into it when it is turned on. The water is necessary to facilitate the grinding process, so be sure to keep it going at all times. If that does not solve the problem, you may need to have a professional come out and take a look at your system to find out what is going on.

Tags: , , , , ,
Posted in Plumbing | Comments Off

WaterSense Labels

Friday, January 28th, 2011

Many people know about the EPA’s EnergyStar certification, which is a third-party certification system that verifies manufacturers’ claims about the energy efficiency of home appliances. The EnergyStar label has helped hundreds of thousands of consumers choose high-efficiency, cost-effective appliances for their homes.

The EPA has also developed a certification for plumbing fixtures, called WaterSense. WaterSense labels can be found on a variety of products, including:

  • Bathroom sink faucets and accessories
  • Showerheads
  • Toilets

While there are specific guidelines for each category of plumbing fixture, in general, the WaterSense label indicates that the product is at least 20% more efficient than conventional products in its category, without sacrificing performance or comfort.

The goal of the WaterSense guidelines is to make a real difference in the amount of water consumed in the U.S. – and the numbers bear this out. Let’s take a look at what would happen if every household in the US installed WaterSense products in their bathrooms.

If every household in the U.S. installed WaterSense bathroom sink faucets, it would save 60 billion gallons of water and $600 million in water heating costs. If every U.S. household put in WaterSense showerheads, the US would use 250 fewer billion gallons of water annually and save $2.5 billion in water heating costs. And if every household in the US upgraded to a new, efficient WaterSense toilet, it would save 640 billion gallons of water a year.

More realistically, even if only 1 in 10 U.S. households upgraded to WaterSense products, we would save about 74 billion gallons of water a year and $1.5 billion on our water heating bills.

Like EPA EnergyStar products, WaterSense products can be found at most plumbing retailers.

The WaterSense label can also be applied to entire homes. Homes that have the WaterSense label have:

  • Efficient hot water systems that deliver hot water quickly to minimize waste and waiting
  • WaterSense plumbing fixtures
  • EnergyStar dishwashers and clothes washers
  • Regionally appropriate outdoor landscaping that requires minimal maintenance and watering

In addition, landscaping professionals can apply for WaterSense certification to show that they have training in water-efficient irrigation system design, installation, maintenance, and auditing.

Tags: , , , , , ,
Posted in Energy Savings | Comments Off