Costs of Radiant Floor Heating

There’s a lot to be said for radiant floor heating. It’s quiet, energy-efficient and delivers a warm, comfortable blanket of heat throughout your home. The costs for this type of heating system vary but the perennial energy savings make them a worthwhile investment.

Radiant floor systems deliver heat by a series of electric wires or tubes that are embedded under the finished floor. Electric systems are best for small installations, like a bathroom. Hydronic, or hot water, systems are more cost-effective for larger applications throughout the entire home.

With hydronic systems, the hot water is heated up with a boiler and the heat is dispersed throughout the tubing. The embedded tubing “radiates” up through the floor to provide consistent heat. Because the heat is delivered uniformly the thermal comfort provided by radiant floor heating is unmatchable. Instead of heating the air which is a poor conductor of heat, these systems warm objects and people.

Another benefit is that radiant heat doesn’t push around pollutants like dust and allergens. And it can be installed under most types of finished flooring including hardwood, tile or polished concrete.

In terms of price, radiant floor heating systems are more expensive than other kinds of heating systems. They run between $5 to $15 per square foot. The lower cost can be found when installing tubing in new construction rather than in a remodel or retrofit.

There are certain variations of installations that provide cooling from radiant tubing. However, in most instances radiant floor systems are more effective to heat and a separate cooling system or strategy is needed. If you are accustomed to air conditioning you’ll find yourself buying two systems - one for heating and one for cooling – which can make initial costs higher.

Still, it’s important to realize that radiant floor heating will save you money in the long run. Typically, homes with these systems recoup about a 30% annual savings on heating. They can also be run with solar thermal energy or geo-exchange (geothermal) systems which are both cost-effective, renewable fuel sources, solar thermal in particular.

The operating costs of radiant floor heating depend on the fuel source. In addition to solar thermal and geo-exchange, they can be used with natural gas, propane, electric, wood or a heat pump. Of these, solar thermal is the least expensive and energy intensive.

The fuel source and heating method also bring variation to energy savings, but typically homeowners can expect at least 20% savings and up to 40% in some cases. The bottom line for installation costs? Radiant floor heating systems can be up to 50% more expensive than conventional forced hot-air systems. However, the thermal comfort, energy-efficiency and perennial savings make them an excellent investment.