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The Whole House Approach for Radiant Heating

The Whole House Approach for Radiant Heating

Our company SA Air Conditioning bases its home comfort systems largely on heating methods imported from Europe, where regulatory conditions and the scarcity of fossil fuels have led to the development of the world’s most sophisticated and energy efficient technology available today.
Europeans have enjoyed the quality and comfort of radiant heating for more than 30 years, perfecting not only the technology, but the installation methods also.

Rather than viewing each mechanical component of a home separately, Europeans integrate all components into one combined system, providing homeowners the ultimate in quality, comfort, safety and efficiency.radient heating

This is called the whole house approach.

The Whole House Approach

Each house is a system of finely-tuned, integrated parts.

When functioning at peak performance, each component works in unison.

On the other hand, a weakness in just one component can compromise the comfort and quality of an entire home.

For example, failing to properly insulate a home using the best methods and materials can result in compromised performance in the entire heating system — from the boiler’s ability to generate heat efficiently to the chimney’s ability to exhaust toxic gases like carbon monoxide.

The performance of each and every component depends on their integration into one, singular system the whole house.

The Physics of Radiant Heat

Radiant heat travels in all directions.

Much like the heat of the sun, radiant systems heat objects and people, not just the surrounding air.

Think about being outside on a freezing 20-degree day and walking on the shady side of the street.

When you go to the sunny-side of the street you suddenly feel warmer.

When the floor is heated from the water in the tubing, the floor becomes the radiator and releases heat waves to your body and the surrounding objects, giving the sensation and comfort of warmth.

This simple principle allows temperatures in a radiant-heated room to be set lower, lowering fuel consumption and actually improving comfort.

In a properly installed radiant heating system, floor temperatures rise to no more than 85 degrees. This assures maximum comfort safety, and protects the floors from damage due to drying.

Temperatures above this can cause overheating, sweating of feet and decreased system efficiency.

Designing the system

A well-engineered radiant system should be designed to operate using lower water temperatures, maximizing overall efficiency and comfort.

Designing a system requires careful analysis of the many factors that effect heat output.

These factors include:

Water temperature
Tube spacing
Floor covering
Floor surface area
Insulation and ventilation
Outdoor temperatures
Equipment (boiler size, etc)

While most of these factors can be controlled, one factor that usually can’t be is the size of the floor surface.

Depending on the heat-loss of the room, the possibility exists that there may not be enough floor surface-area to heat the room sufficiently.

In this is the case, walls or ceilings can be utilized for radiant heat by installing a climate panel or Thermalboard system.


The most widely used tubing in Europe is called PEX (cross linked polyethylene).radient heating

This flexible plastic tubing was original designed for the telecommunications industry in the laying of the trans-Atlantic cable.

PEX has been in use for over 30 years, and as a result of rigid, ongoing testing, it has been shown to have a life expectancy of over 200 years.

PEX tubing is becoming the material of choice in the U.S., versus rubber tubing, which is prone to rapid deterioration.

Another type of tubing that is catching on is PEOC made of Dowlex PE-RT resins.

It is a flexible, easy to handle, five layer tubing with a built-in oxygen barrier.

Boilers – Heating the water:

There are a variety of ways in which to heat the water for your radiant system:

Ground Source Heat Pumps
Wood Boilers
Dedicated Water Heaters
Important Considerations:

Device should be able to withstand lower water temperatures associated with radiant heat. If not, systems or provisions should be made to address this issue.
Offer the lowest possible operating cost
Be clean-burning with low emissions
Have a large water storage capacity to prevent short cycling (unless it has a modulating burner)
Be easy to service
Different Methods For Different Circumstances

Depending on a home’s structural design, two methods for installing radiant heat are generally employed — wet systems and dry systems.

Wet Systems:

Wet systems require the tubing to be embedded in concrete. Wet systems are usually found in basements, garages or slab-on-grade construction.

In some living areas, tubing is attached to the top of the sub-floor and then covered with a layer of lightweight concrete.

The benefit to this system comes with its high levels of heat output.

Its disadvantages, however, include:

Installation of hardwood floors become more difficult
Requires a minimum of 1-1/2″ inches of height
Moisture curing can be a problem, compromising the integrity of the flooring
Weight of concrete sometimes requires additional framing
Dry Systems:

Above the sub-floor:

Tubing can be installed on top of sub-floor with aluminum plates and plywood strips, called sleepers.

Dry systems such as these allow finished floor to be installed directly over the tubing.

A method superior to the sleeper system is the climate panel system, consisting of ½”inch plywood, seven or ten inches wide and 4 feet in length.

The panels are equipped with aluminum bonded to the underside. There is a groove in the center that accommodates PEX tubing.

Another product is Thermalboard. A 5/8” thick medium density fiberboard covered with aluminum and a groove that accommodates the tubing.

These panels can be applied on top of the sub-floor or a concrete floor, requiring only 1/2″ – 5/8” in height. The finished floor is applied directly on top of this system.


Excellent heat output
Requires a minimum of 1-1/2″ inches of height
Lightweight and low profile, no additional framing needed
Tubing is visible when nailing finished flooring
No moisture problems
Below the sub-floor:

Another dry method is tubing stapled beneath the sub-floor with aluminum heat transfer plates.

This method enjoys most of the advantages of the top of the floor system except that heat output is lower, due to the extra layer of flooring the heat has to travel through.

When used in new construction, care should be taken to avoid any punctures to the tubing.
This is not a problem for a competent flooring company.

Another commonly used dry method that we don’t recommend is to install the tubing beneath the sub-floor with no aluminum heat transfer plates.

Because there is little thermal contact of the tubing to the floor, water temperatures have to be increased.

The overall performance of these systems can be very disappointing, especially in colder weather.

The exception to this rule is when you only want to warm the floor surface or want to supplement an existing heat source.

Mixing Valves:

Water temperatures created by heating boilers are usually in the 180 degree F range and are too hot for radiant heat applications.

Excessive temperatures can cause overheating of the space and damage to floors.

An effective way to lower the water temperature is by the use of a mixing valve.

Some mixing valves are set to a fixed temperature but the preferred method is a motorized, modulating valve.

These motorized units provide a higher level of comfort and economy of operation.

Controlling for Comfort

The traditional way to control the comfort of a building is to use a thermostat that turns the circulating pump and boiler on and off as the temperature in the room rises and falls.

The disadvantage of this method comes with the wide fluctuation temperatures, which often results in the feeling of being too hot or too cold.

This on/off strategy may also contribute to drying the floors.

Another method that has proven itself in Europe is to run the circulating pump continuously and vary the temperature of the water.

This is accomplished by using an outdoor thermostat that can increase the temperature of the water circulating through the floor as the outdoor temperature drops, and will decrease the temperature as outdoor temperatures rise.

This strategy puts just the right amount of heat into the house, eliminating wide temperature swings.

The difference is likened to stop and go city driving versus highway driving with cruise control.

The average water temperature in a climate controlled system is usually about 30 degrees less than if you were to use the on/off control system.

In addition to superior comfort, floors are better protected and energy savings of up to 25 percent can usually be expected.

Circulators or Zone Valves?

Another advantage of radiant heating is being able to put each room on its own zone, allowing you to control the temperature in various rooms independently.

This can be accomplished by using a circulator or zone valves for each room.

Using multiple circulators will increase electrical consumption by as much as 5 to 10 times versus the use of zone valves in some instances.

A typical circulator uses approximately 85 watts.

On the other hand, zone valve uses only 2 watts of electricity.

There has been the argument that if the circulator fails on a system that has only one circulator you are entirely out of heat.

The upside of radiant heat is that it takes a long time for the temperature to drop to a very uncomfortable level.

By the time this happens, the circulator will usually have been replaced.

Keep circulators to a minimum for maximum efficiency.

Communication is the Key

In order to get the results you should expect from your radiant system, there has to be good communication between the heat source and radiant system.

Rather than have a variety of controls by different manufacturers, systems should be integrated into one in order to avoid wiring and troubleshooting headaches.

Finger-pointing among building contractors is also eliminated if ever a problem arises.

You’ll Wonder How You Lived Without It!

This helpful guide to radiant heating contains the fundamental facts to put you on your way to enjoying warmth like you’ve never experience

for more information @ Air conditioning repair and service in San Antonio

Domaine Research done right

Domaine Research done right

You have two choices when it comes to business domain name research; it can be tough and frustrating or fun and pretty easy. If you’re not looking in the right direction, you may simply settle down for something that’s not worth it. You need to operate from a position of knowledge and informed state, if you want the best results. We can definitely get you pointed in the right direction so you will be armed to the teeth any time you search for domains. Pioneer AVH-P4300DVD, how to apply makeup , Traffic Voodoo 3.0Internet Marketing - domaine Research

It’s easy to register a domaine

It can be easy to register a name only to find out there is a highly popular domain that is almost just like yours. So, before whipping out the plastic, do that if it matters to you otherwise skip it.

You know how important it is to stand out from all the rest in your niche. We see no good reason to almost be confused with another business related to the domain, and you really should have the same opinion. You will lose on traffic and it’ll be hard to create a brand when your domain name looks too common. Naturally, you never have to believe us, but how can you not see the logic in this suggestion? When you’re buying your domain name, buy it from a well known registrar. There are many scams going around on the Internet in the domain industry. If you want to be on the safe side, then see to it that your domain registrar is known. Get an idea about who it is that you are using to register your domain name. If you are not sure, ask questions. But don’t make the mistake of choosing whatever registrar comes your way, because that may just complicate things in the future. This will offer you some peace of mind knowing that your domain name is safe.

Keep Control over your Domaines

Make sure your register the domain name on your own, and not through someone else. You want your domain’s control and authority in your own hands. It’s important to be able to manage your domain name on your own and take whatever steps you want to take with it. When you want to register your domain name, don’t give any credence to a third party service. Even if you are partnering with another person for your online business, try to do the registering of the domain name yourself so that nothing can go wrong later on. It’s important to trust when you run a business because you ought not trust absolutely anybody who comes along. There are a number of reasons why your domain name might not live up to your expectations. Once you become aware, then it is impossible to go back, but why would you want to do that, anyway? Once you are confident that you know what to do, then you will proceed from a confident position. You can see that there is not anything hard about what you need to know, so just get a move-on with it. Learn, get the necessary facts you need, and then commit to positive action.
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Don’t forget to shop local: @ sanantoniolocalexperts.com

Domaine research links:

Ants Are Resilient – Ant Control

Ants are resilient

Ants are social and adaptive creatures. For this, they can be regarded as one of the insects that need insistent bug elimination attention. For humans, ants are a bother. They create colonies within houses and buildings and destroy structures and properties. Total extermination of an entire ant population in an areas affected of the house can be a seemingly impossible task. That’s why controlling and handling the population of these pests are likely to be done than totally wiping them out of the area.Ant Control see more here @ http://sa-pestcontrol.com/

First and foremost, forestall the ants from entering into the house by sealing off all possible entrances. These can come in the form of holes in the walls, cracks and little openings. Cut off branches and limbs of trees that come in touch with the house. These act as pathways for ants from colonies in close by tree stumps and barks.

Nonetheless when the ants have just entered the home and have established colonies in a few areas of the house, a few things can still be done to regulate their population.

Get rid of all food sources. Keep food remains in tightly sealed boxes to avoid ants from scouting them and leading other fellow ants into the food. Better yet , place food in the refrigerator to both prevent ants from acquiring them and to keep the food fresh and palatable. Wipe counter tops and sweep kitchen floors frequently. Remove food crumbs and stains in the table, drawers and food cupboards.

Erase the scent trails of worker ants. Wipe the trail with a sponge of soapy water, as water alone isn’t enough to completely remove the smell. Start wiping from the food source and toward the colony or nest of the ants or as near to that as possible.

Insecticide baits are also available to be used in pest control. They can be in the form of granules or liquid formulas. They’re mistaken by worker ants as food and are then brought back to the colony where the pesticide bait is unconsciously fanned out to other ants by the method of trophallaxis.

Contents of these insecticide baits may include boric acid and borax—chemicals that are comparatively not dangerous for humans. Conscientiously following the trail of ants back to their colony and destroying it by pouring burning hot water is also a sure way of killing their queen ant and forestalling more nests to be made within the home.

Though some techniques discussed earlier suggest of the entire eradication of ant colonies, they are done so because the area where their nests are built is inside the home. However , nests and colonies that are out in the open and away from homes and business establishments aren’t to get destroyed for ants also play a crucial role in keeping the balance of nature.

They are answerable for the aeration of the ground soil, decomposition of organic matter and the regulation of other insects ‘ population. They just become a bother just when they have penetrated the houses of humans that consider them pests. Bug control, then, is only limited in the perimeter of the house or building.

Whether or not you are dealing with chippie ants or any other kind of ants for what it’s worth, it is best to contact a pro to help with the process of shedding them. If you’re living in Toronto you must contact a local Toronto exterminator. Get some aid with the ant control Toronto process and lose your problem once and for all.
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Can Heat Pumps Reduce Energy Bills

Heat Pump Repair

Can Heat Pumps Reduce Energy Bills

Instead of generating heat, heat pumps move heat, and work together with the furnace. In summer they function as a central air conditioner. Choosing a new high-efficiency heat pump is the way to go, as they can save plenty on energy bills.HVAC Repair - Heat Pump
Our air conditioning repair technicians are specially trained to handle these advanced units, so never fear. We have the knowledge, training,a nd experience you need to get your system back up and running be it regular or emergency air conditioning repair. How Do Heat Pumps Work?

Air source heat pumps are the most common, as they are inexpensive and installation is easy. Heat pumps work by pumping a liquid refrigerant through coil tubing, which vents heat from inside the house to the outside. As the liquid flows through the coil, it expands and becomes a gas which absorbs heat from the surrounding air. A blower then sends the air around the cooled coil, and passes through the ducts and into the house. In the winter, the process is reversed. Comparing Heat Pumps To Furnaces

Heat pumps use clean electric energy, unlike furnaces which use fossil fuels like propane. Some furnaces use natural gas. When used alone, furnaces use a lot of electricity, mainly due to the fan working constantly. Heat pumps will usually keep the house warm when the temperature is in the 30s or above. If it falls below freezing, a furnace will do a better job. Air conditioning repair for your heat pump is simple and easy when you choose a good system. Dual Fuel Systems – Sometimes Called Hybrid Systems

A dual fuel heat pump works with either a new or existing forced air furnace. During the summer, it does the work of an air conditioner, transferring heat from the house to the outside air. In the winter, it brings heat from the outside air into the house. When the temperature is around the freezing mark, the forced air furnace will kick in. Both work together to keep heating in constant control. All of these systems can benefit from our air duct cleaning.

Although the cost of a dual fuel system is higher than central air conditioning, it will pay for itself with lower electric bills, as the heat pump will do the work for most of the year. Also, the cost of propane or natural gas for a furnace is highest in winter. Have a certified technician do a home evaluation and a heat loss calculation to decide what unit size is best for your house. For more information on this or other air conditioning repair services please click the link or o straight to Miami heat pump repair.
For more Info click here @ http://ac-repair-sa.com/