Radiant Heating FAQs

How long will a radiant floor heating system last?
A Viega radiant floor heating system can be expected to outlast the house it is installed in. We have seen our tubing removed from concrete after 18 years of operation and it looks just about as it did when it was installed. Bear in mind that this is not true of all tubing on the market. A radiant floor heating system is one place in your house that you want the best quality that is available. Viega quality has been proven for more than 25 years.

What are the costs involved?
The installation cost of a radiant floor heating system will be more than a hot air or baseboard heating system. However, the operating cost of a radiant floor heating system will be less than a hot air or baseboard heating system. The choice is whether to buy the ultimate form of heating comfort in a quieter, hidden and highly reliable system while increasing the house value. A Viega radiant heating system is an investment in comfort.?

What if a tube breaks in a floor?
The Viega crosslinked PEX tubing is extremely durable and will not break in use. PEX tubing can be punctured, however, by an unknowing carpenter or flooring installer. In that case, a repair coupling would be used to eliminate the damage. Viega offers a 25 year warranty on ViegaPEX Barrier tubing used in hydronic radiant heating applications. Our PEX tubing is, however, expected to have a life that will outlast the structure it is installed in.

What type of maintenance is required?
Viega equipment requires no maintenance. System components that are supplied by others, such as the heat source, may require standard periodic maintenance.

Does a radiant heated house take a long time to heat up from a cold start?
That depends on the type of radiant system that is installed and how cold the house is when beginning. In general, a Climate Panel System, which is on top of the subfloor, will be faster to heat up a room (approximately 20-30 minutes) than a concrete system.

Can I use radiant heating to heat my entire house?
Absolutely. We often hear from people who regret not heating their entire house with a radiant system. It is easier and more economical to install a radiant system all at once than to go back in at a later date to patch in radiant heat where it had not been installed originally. Your heating professional will do a heat loss calculation for the house. The need for supplementary heat is a rare exception.

Can I put radiant heating in any room?
Yes. However, your heating professional should do a heat loss calculation for you. In some exceptionally high heat loss rooms, a supplemental heat source could be necessary.

How do I control individual room temperature?
Radiant heating systems can be zoned just like any other heating system. Proper balancing allows most rooms to be at the proper temperature without using thermostats, but these are usually installed to give the homeowner control.

Do I need a new boiler, or can I tie a radiant system into my existing hydronic system?
Most frequently a radiant system can be tied into an existing boiler. Your heating professional will do the heating requirement calculations to determine if your existing boiler has the necessary capacity to support the radiant system.

Is radiant floor heating only for new construction?
Radiant floor heating systems can be installed in remodeling and retrofit projects as well as in new construction. The type of radiant system used will be determined by the circumstances of construction. Typically the Climate Panel System will be installed above the subfloor when there is no finished floor in place. In situations where an existing floor is to remain undisturbed, the radiant system will be installed below the subfloor using the Heat Transfer Plate System.

Will radiant floor heating damage hardwood floors?
If not installed and controlled properly, radiant heating can harm wood floors. However, a low temperature constant circulation Viega Climate Panel System installed by one of our trained contractors is designed to work safely and successfully with wood flooring. The floor surface temperature of a radiant heating system does not get above 85°F. A typical sunroom floor with the sun shining on it gets hotter than a properly controlled radiant system ever makes it.

What are the benefits of radiant heat over forced air?

  • More comfort first and foremost.
  • Healthier - no dust or allergens being blown around.
  • Higher operating efficiency due to low water temperatures and the heat being where the people are rather than at the ceiling.
  • Quieter because there are no fans or blowers.
  • Less maintenance, no filters or ducts or baseboard to clean.
  • Decorating freedom without constraints of vents, returns or baseboard units.

Why is radiant floor heating so efficient?
Radiant floor heating is an efficient delivery system when compared to radiators or air vents that try to blast enough heat into a room to heat it. Radiant floor heating uses a low water temperature. The warm water is constantly circulated in the floor, providing heat where it is needed, instead of wasting it at the ceiling. Since radiant floor heating does not directly heat the air, you don’t lose as much energy with air leaks and infiltration. With this heating method, you can save 10-30* percent on your monthly heating bills. *Radiant Panel Association

How does radiant floor heating work?
Warm water - from 80ºF to 140ºF - is circulated through flexible, durable PEX tubing that has been installed in the floor. Heat is transferred upward turning your entire floor into a warm, mild radiator. A variety of hot water heat sources can be used to warm the water that flows through the tubing.

Why is radiant heating so comfortable?
A radiant floor heating system warms bodies, objects and floor surfaces. You feel comfortable because radiant floor heating keeps your feet and the objects around you warm – in turn keeping your body warm.

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