Showing posts with label radiant heat. Show all posts
Showing posts with label radiant heat. Show all posts
Interior Decoration
Many energy efficient home designs include radiant floor heat. More efficient than forced-air heating or baseboard heat, radiant heat delivers several benefits to homeowners: less allergens (circulated through the home via the heat systems ductwork) meaning better air quality, reduced electricity usage and fossil fuel usage, and evenly distributed heat at floor levels with little energy loss which means greater comfort and less drafts.Two types of radiant heat are available: 1) in-floor (most popular); and 2) wall or ceiling radiant panels.
1. In-floor radiant heat:
In-floor radiant heat is by far the most common kind of radiant systems used. There are three types of radiant floor systems: air, electric, and hot water.
Air-heated radiant floors:
Air is not a good conductor; therefore, radiant air heating systems are typically not cost effective in homes and are seldom installed. They can be combined with solar air heating systems; however they would need to be combined with a secondary heating system for non-daylight hours.
Electric radiant floors:
In this type of system, electric wires are built into the floor system or electrically conductive plastic mats are mounted to the subfloor and covered with a floor system such as tile. Electric radiant systems are only cost effective if they have a significant thermal mass such as a concrete floor. This allows you to heat the concrete floor during off-peak electric hours (overnight) and heat the home comfortably for up to 8-10 hours during high-peak electric hours (daytime). Electric radiant floor systems are practical for small additions where an additional heating system needs to be added.
Hydronic (hot water) radiant floors:
Hydronic radiant floor systems are the most popular and cost effective radiant heating system available. Water is pumped from a boiler, hot water heater, or solar collectors through tubing laid under the floor(for wood) or in a concrete or lightweight concrete slab. The tubing can be installed in zones with thermostats controlling the flow of hot water through each zone loop.
2. Radiant panels:
Radiant heat panels are usually made of aluminum and are mounted in either walls or the ceiling of a home. Heat is produced by either electric cables or plastic tubing with circulating hot water. Radiant panels can be individually controlled for each room and have a quick response time, making this heating system an option for rooms that are used infrequently. Wall panels are preferred because of the distribution of heat over the whole body as opposed to ceiling panels, which heat the head and shoulders.
If you’re building a green home, consider installing radiant heat. It creates a warm, comfortable living environment, is easy to install, and gives you a substantial return on investment!interior decoration
Interior Decoration
Radiant floor heating systems are one of the most energy efficient methods of radiant heat available. Each of the three types of radiant floor heat (electric, air, and water) can be installed using either a “wet” or “dry” installation method.
“Wet” installation methods include embedding the cables or tubing with a solid floor, such as a concrete foundation slab or a thin layer of concrete or gypsum installed over the top of a traditional wood subfloor. Additional floor support might be necessary because of the increased dead load of the materials.Concrete slab floors have a high heat storage capacity. They do, however, have a slow response time, so it is recommended to maintain a constant temperature for maximum comfort.
“Dry” installation methods include having cables or tubing installed in the air space beneath the floor. This method is faster and less expensive than wet installation methods, but because the radiant heat now involves air space which is a poor heat conductor, the system needs to typically operate at higher temperatures or for longer intervals.
Tubing or cables can be installed between two layers of subfloor with aluminum diffusers to spread the heat across the floor evenly. They may also be suspended underneath the subfloor between the joists using reflective insulation under the tubes to direct the heat upward.
Types of Radiant Floor Coverings
What type of floor covering should you have with a radiant floor heating system? Any floor covering that separates the heating system from the room will decrease the efficiency of the system and affects fuel consumption. Some floor coverings, which act as heat conductors, are better than others.
Ceramic tile, quarry tile and stone are by far some the most common and most energy efficient floor covering because it transfers and stores heat effectively, however almost any type of floor covering can be used.
Carpeting should be minimal in the home. Where required, carpet should be thin and with a dense pad. Carpeted rooms should be zoned separately to ensure even heating throughout the home.
Most radiant floor manufacturers recommend laminated wood floors instead of solid wood, which reduces the possibility of the wood shrinking and cracking as the wood dries, however there are solid wood flooring manufacturers that do support installation of their products over radiant floor systems, observe the plank width limitations if they have them. It is important to follow recommended installation guidelines on any type of floor covering, but the stable even heat o a radiant system is typically considered a good environment for most floor coverings and an extremely comfortable type of heat for your home.
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