Radiant Floor Heating For Comfort And Efficiency

Radiant floor heating is an efficient and comfortable way to heat your home. It provides superior comfort to compared forced air heating because the heat emanates from the floor, and rises. The air cools somewhat as it rises. This allows the temperature at the feet and legs to be slightly warmer than the temperature in the air around the head.

Radiant heat is produced from either hot water flowing through a pipe system in the floor (hydronic), or by electricity. Hydronic systems are more complicated to install than electric systems, because the pipes need to be set in the cement under the floor. Obviously, this is expensive to install, but hydronic floor heating has it's advantages over electric heating.

The water holds the heat much better than electric wiring does, and as a result, is more efficient. It also allows for a variety of ways to heat the water itself. You can use gas, propane, oil, electric or even solar heat. Any traditional heating method is a usable option for heating the water that runs through the underfloor tubing.

Electric heat functions like an electric blanket. As electricity flows through the wiring, it encounters resistance, which causes the wires to produce heat. This is much less expensive to install than hydronic heating. It's easy to find floor tiles with the electric wiring built in, ready to just place and install. These are easily available at just about any home improvement store.

Radiant floor heating is especially popular in rooms that are commonly floored with tile, such as kitchens and bathrooms, but it can be used in any room, or the house as a whole, with any type of floor covering, including hardwood and carpet. It's quite nice to walk into the bathroom on a cold day and notice nice, warm tile on your bare feet. This simply isn't available with forced air heat, unless you keep the temperature uncomfortably warm.

Another advantage of radiant floor heating over traditional forced air heat is that there is no air being pushed through the home. This seems almost obvious, but when air is being pushed through the home it can suck the humidity from the air, especially if there a a leak in the system allowing the dryer outside air to mix with the air being heated.

It also can distribute allergens through the air in your home. Of course, there is also the issue of feeling hot air blasting on you while the heat is on. If you're in the wrong part of the room, it's still too cold. In yet another equally wrong part of the room, you're being hit with hot, dry, allergen carrying air. Neither of these options are particularly comfortable.

Overall, radian floor heating may be a little more expensive to install, but in the long run, it will be a more efficient and cost effective way to heat your home. It will also be much more comfortable. That's a double bonus in my book. I would ask, what's the price you would put on your comfort, but the reality is that it's going to be a big savings in the end.

Alex Parry is the author of a heat exchanger cleaning equipment site, where you can also find more information on shell and tube heat exchanger design

Better Heat Exchanger Cleaning Through Technology

Maintenance of a platform's Waste Heat Recovery Unit (WHRU) and similar shell and tube heat exchangers can be an extremely dangerous process. It needs to be disconnected, taken off line, and moved to shore for repair. Shell and tube heat exchangers are made of coiled tubes and can become fouled with carbon deposits. The traditional methods for clearing the blockage include bypassing the fouled unit, cutting off bends and cleaning the tubes, then re-welding the U-bends, and complete unit replacement.

The old methods are becoming more outmoded due to advancements in technology. It is inefficient to bypass the unit. Just as it would be less efficient to run your car with 2 cylinders not firing. This inefficiency, of course, also increases operational costs. It is time consuming and costly to cut the U-bends and re-weld them. Sometimes it can be difficult or impossible to get access to reattach them.

Some of these new methods include the ability to clean areas with limited access, and clear deposits from U-bends without ever removing them. This can sometimes be done without even taking the unit offline, and usually takes less time and results in a higher degree of defouling. In fact, many units can be restored to near-factory efficiency. For big refineries, petro-chemical plants, or power plants, this can amount to six figure savings.

The U-bends themselves also retain many deposits, and continue to be a bottleneck to the system. Full replacement carries the cost of completely replacing equipment that, other than the heat exchanger tube fouling, is still in working order. This method also requires the unit be taken offline for the full duration of replacement. obviously this carries a heavy expense and serious loss of production.

Traditional heat exchanger cleaning methods and heat exchanger cleaning equipment have changed very little over the last few decades. Pressure jetting is still the primary means used by many companies, but it is slow, inefficient, and ultimately very costly. Additionally, many companies are skeptical of newer methods, falling back on the "that's the way it's always been done," chain of logic. They are also weary of trying new techniques that are not as "proven" to be effective. Finally, many have long term tube cleaning contracts that do not allow for a change in heat exchanger cleaning technique, unless the contractor were to adopt the new methods.

Newer heat exchanger cleaning equipment and techniques are more technologically advanced, and by extension, require a higher skilled laborer than old style pressure jetting. These new developments include the ability to clean tight radius bends, clean units while keeping them in place, and even while keeping them online. It has also resulted in faster, more efficient cleaning. Many tube bundles can now be cleaned more effectively than with pressure jetting, and jobs that used to take days may now take only a few hours. Difficult to access units are now accessible with these new technologies.

Some of the technology that has been developed includes special nozzles that can be used on tight bends, laser cleaning, and new "smart" metals that respond to changes in density and pressure to prevent damage to the tubes. With these methods, jobs can be finished with less downtime, because cleaning and descaling can be done more quickly. Equipment is also less likely to be damaged in the process. Many of these new processes are safer, create less waste, use no chemicals, and have a significantly reduced environmental impact.

The article was written by Alex Parry who writes about heat exchanger safety at his heat exchanger cleaning equipment site.

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