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Radiant heating
Hydronic heating applications, which utilizes hot water or steam to heat a building, became widespread in the 1940′s with the advent of hot water radiators, while hydronic cooling technology, using cold water to cool a building, is only now gaining popularity. Unlike traditional heating systems, radiant heat heats up the contents of a room directly rather than simply heating the air surrounding those objects. Radiant cooling, on the other hand, occurs when a cool object takes in heat, as when the heat of your body is absorbed by the cold surface of a radiant cooling system. Hydronic radiation operates the same for both heating and cooling, with cold or hot water running through a series of pipes embedded in the ceiling, walls, or floor. The most effective radiant heating systems are installed in the floor where the heat rises, while the most effective cooling systems are installed in the ceiling where the ascending heat is more easily absorbed. There are more steps to the set up of a hydronic cooling system than a heating one because you need proper ventilation to de-humidify the room and provide fresh air. Traditional cooling and heating systems rely on blowers and ductwork, and undergo an energy loss since the cold or heat will disperse with the currents of air. Don’t think twice about calling in an HVAC contractor for installation of hydronic radiant systems, as the work is usually too challenging for the typical do-it-yourselfer.
Radiant floor heating system
More and more homeowners are looking at radiant heating systems to answer their home heating requirements in an environmentally friendly way which is safe and economical. Depending on which radiant heat technology one prefers, the ceilings, floors and walls are heated by either electricity or a hot liquid, which warms the items that are close by and then heats the air. Contrast this heating system with traditional forced air systems that blow lots of hot air into a room, and as the air gets warmer the room heats up, but this leaves the floors cold even as you feel the heat on your upper body. The standard kinds of radiant heating are liquid (water or oil) systems in which hot liquid is pumped through a system of pipes, and electric radiant systems, which energize a series of electric wires. The array of pipes in a hot liquid system, commonly called a hydronic system, are almost always installed between sheets of plywood, or laid out over a slab of concrete. Two thousand years ago, the Romans perfected another form of radiant heat employing air that was heated, but currently such technology is not as economical since air cannot hold onto heat as efficiently as other systems.
Radiant heating
Of the three possibilities of heat transfer, convection, conduction, and radiation, this article explains radiant heating, where objects and people are warmed by a separate heat source, and not by warm air currents. You will find three kinds of radiant heating systems for the floors, ones that utilize hot air, ones that utilize electricity, and ones that utilize hot water, which are also known as hydronic systems. Since air is an inefficient medium for retaining heat, it is hardly ever used nowadays and is considered obsolete. One of the most in-demand heating technologies will be electric radiant floor heat, where you install a series of thin electric cables under flooring such as hardwood, tile, stone, or laminated wood. Radiant heating systems using hot water, called hydronics, are very popular these days since they are the least expensive, need no electricity, and only utilize hot water pumped from a boiler into an array of tubes installed under the flooring. With the right hydronic system you can regulate the temperature for every room by adjusting the amount of hot water that flows through the tubing loops underneath each room’s floor. The easiest radiant heating systems to install are inserted between plywood sheets in between the flooring and a sub-floor (called “dry installation”), while the most cost-efficient systems are installed in concrete slabs (called “wet installation”), as concrete is a superior heat medium. When selecting the most suitable flooring to go along with your new radiant floor heating system, keep in mind that ceramic tile operates best with radiant heat, and solid, non-laminated hardwood covered by carpet is the least efficient.
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