Best Lab Equipment

Here are some more information for Heat Block:

Simply put, heat pumps utilize the hot (geothermal) air outside and processes that air to provide warm or cool air (reverse process) through a ductless or ducted unit into your home. They are very energy efficient and give the homeowner comfort year round no matter the season. These units are a popular choice among homeowners today for their home heating and cooling from Tampa, FL to San Diego CA and even up into Canada.

Gibson - This company has been around the block and produces air conditioners and heat pumping units with split system setups, in 13 SEER fixed single stage, 15-16 SEER variable speed two stage and 14 SEER variable speed single stage systems.

Coleman - Coleman produces split system heat pumps that is an outdoor unit using electricity for the power source. It's highly energy efficient using the reverse cycle process for summer home cooling. Ductwork is required to carry the warm or cool air into various rooms throughout the home.

Daikin - These units are ductless, energy efficient, safe, compact, offer no excavation or digging installation and provide comfort year round as well as provide sanitary hot water for the home. These units are usually wall-mounted and require no ventilation or duct work.

Trane - Trane manufactures several models including their ultra efficiency XL20i and XL16i, super efficiency XL14i and XL15i, high efficiency XR13, XR14 and XR15 and standard efficiency XB13 and XB14 units. The ultra efficiency models include ComfortLinkII technology that allows for communication with indoor units (when present) and telephone capable setting changes when you set up the TAM feature.

Some brands of heat pumps use hydronic technology to grab the outside air which makes them even more efficient and usually quiet. Hydronics are considered a refrigeration process where the hydronic heat pumping system moves heat from a body of water or the earth into the home. Those using a body of water are referred as open-loop systems and those using the earth are referred as air source systems. These use a lot less electricity which also saves money for the homeowner.

If you think it might be time to upgrade your current heating and cooling system perhaps a heat pump would work for you. If you have problems with troubleshooting issues when converting from one kind of system to heat pumps a professional installer can help you and go through the process and cost that are involved so you can decide which brand will be best for you.

If you are looking for more great info on heat pumps Dave Gorski recommends: http://www.proheatpumps.com

Tips to Reduce Your Heating and Cooling Costs

Here are a few tips that will help reduce the load on your heating and cooling systems so that they do not have to work so hard, resulting in further reductions of your heating and cooling costs.

INSULATING AND SEALING

In the summer, the attic is the first layer of defense between your homes living space and the sun. In the winter, the attic is the final layer between your heated air and the frigid air outdoors. The most economical thing you can do is to add additional layers of insulation to your attic or have more insulation blown in.

In the winter, if you have older windows, seal the windows with plastic, either from weatherization kits that are readily available or by simply cutting plastic sheets and securing them with duct tape. Also add weather stripping to doors and replace screens with storm windows or cover the screens with plastic.

ATTIC VENTILATION

During the summer, your attic crawl space can easily exceed 130 degrees. Proper venting, such as installing a 'ridge vent' can be helpful in allowing the heat at the attic's highest level to more easily escape.

If you had chosen to add more insulation to your attic space, check to make sure none of your eaves are blocked and that your attic still has airflow from each eave to the ridge vent.

Another great ventilation aid is to install a solar powered exhaust vent that only turns on at high temperature and uses only the power of the sun to provide this extra ventilation. Since there is no wiring necessary, any basic carpenter or handyman can install this form of vent.

EXHAUST SYSTEMS

Your bathroom fans, stove top fans and clothes drier are all items that exhaust your heated or cooled air outside, requiring air to be drawn in from the outside, resulting in hot humid air or cold frigid air being sucked into your home when you least desire it.

Do not use your clothes drier on extreme temperature days, such as summer days at 90 degrees and greater or on winter days at 20 degrees or lower. In the summer, the heat of the day peaks between 3pm and 6pm, so run your drier earlier in the morning or much later at night. Likewise in the winter, the night temperatures may be frigid and drop into the single digits. Run your clothes drier only during the afternoon and early evening when the air is the warmest of the day.

For your bathroom exhaust fans, replace the simple on/off switch with a timed switching device of no more than 60 minutes. It is necessary to ventilate the bathroom, but it's totally wasteful to find that the exhaust fan ran all day while at work, exhausting your heated air outside. You may as well have just left a window open all day.

FREE HEATING AND COOLING

Depending upon your geographic location and the position your home faces, you can take advantage of windows and curtains to add or block heat, depending upon the time of year. In the winter, allow the sun to enter your southern windows during the day, but in the summer, be sure to keeps those blinds drawn.

For summer cooling, install a whole house exhaust system and run it on nights when the outdoor temperature drops. Simply turn the unit on, open your windows and allow the house to cool off naturally, with just a little help from one central fan.

TEMPERATURE SETTINGS

Heating systems are generally designed to provide your home with the capacity to maintain 70 degrees indoors when it's 0 degrees outdoors. By eliminating drafts and simply wearing long sleeve shirts and socks during the winter, you can easily reduce your homes temperature setting to 65 degrees and be totally comfortable. Any lower than that and you may start feeling uncomfortable.

Cooling systems are generally designed to provide your home with the capacity to maintain 75 degrees indoors when it's 95 degrees outdoors. Since the main discomfort issue in the summer is humidity, you can be comfortable in your home at higher temperatures since the homes humidity levels are reduced when running the air conditioner. By eliminating unnecessary exhaust and door openings and closings, you could increase your homes temperature setting to 78 or 80 degrees and be totally comfortable if you dress lightly and keep drapes drawn that favor the suns side of your home.

For either heating or cooling, you can alter the temperature settings from 5 to 10 degrees for when you are not going to be at home for 8 to 12 hours. Making an alteration of any greater amount only leads to your system overworking to recover and this is inefficient. If you are going to be away for days, you can reduce the heating to 55 degrees or raise the cooling temperature to 90 degrees and this will prevent freezing issues or baking issues.

You can also install a programmable thermostat to better define the periods where you plan to be home or not, plus you can also set winter heating temperatures lower during the night when you are sleeping and have it bump back up a few degrees a half hour before you awake.

( This article is an authorized excerpt from the book 'The Rewards of Making Energy Efficient Choices' , available at http://www.EnergyEfficientChoices.com )

About the Author

David Nelmes is a published author and home energy inspector in Pennsylvania, specializing in the fields of Heating and Air Conditioning, Electrical Wiring and Interiors/Insulation. You can visit his web site at
http://www.energyefficientchoices.com

what can cause heat exchanger to block or break down in conbi boiler?

pay gas board to cover break down but they say heat exchanger not covered because problem caused before we started cover but it's only just gone

If you are in a hard water area it is lime scale, this the reason i hate combi boilers and have a convectional one and i would rather lose a job than install a combi boiler in a hard water area. You need a water softener a proper one not one of the electronic type they are crap for combi boilers in hard water areas and then they are fine.

Saturday mail on the chopping block
Neither snow nor rain nor heat nor gloom of night prevents mail couriers from the swift completion of their appointed rounds. Saturdays might be tough, however. Facing a projected $238 billion loss over the next decade, the U.S. Postal Service on Tuesday proposed putting an end to Saturday mail delivery.

Thanks for visiting!