Floor Heating: How Does It Work?

You may run electrically heated coils or water-heated tubing below your floorboards to heat your floor. This method works because the heated floor transmits heat upwards, warming the entire area. In addition, eating the bottom is like basking in the warmth of the sun. Moving from the shadows into the light on a sunny day can make you feel warmer, even when the air temperature hasn’t changed much. 

Moreover, compared to a traditional forced-air system, in which warm air rises, cools, and then sinks to the floor, floor heating keeps the whole space at a consistent temperature. Check out this article to know why floor heating is efficient and a must-have for your property structure.

How Does Floor Heating Work?

Heat is released directly to the floor using radiant floor systems. They offer bottom-up, bottom-out heating by warming the floor instead of the air above it. These things radiate some of the heat back into the room, making it cosier. Through the utilisation of electromagnetic waves, radiation can transfer heat through the atmosphere. Until they are stopped, the power in these waves is just potential. They discharge their heat energy via the substance when they collide with anything, whether it be your furniture, wall, floor, or even you.

Thus, even though the air temperature is low, you experience direct heat radiation and consistent heat. Radiant heat provides comfort more quickly and at lower temperatures. Because of the lack of air movement, the room’s temperature stays constant and pleasant throughout.

Will The Underfloor Heating Make A Room Warm?

It is possible to have electric floor heating with a greater wattage, which is ideal for significant heat loss regions like pergolas. For a high heat loss region, the temperature may be regulated to offer a reasonable level of comfort since damp underfloor heating systems typically create temperatures between 23°C and 32°C.

In addition, an underfloor heating system’s thermal efficiency must be higher than the heat dissipation of the space it is heating for the system to be effective. Therefore, a heat loss estimate must be performed to verify that the system is adequate. A professional heating engineer or architect may do this analysis, guiding you towards selecting the optimal heating capacity for the underfloor heating system.

What Are The Different Types Of Floor Heating?

Not only does floor heating save money in the long run, but it also provides comfortable heat without the need for noisy ventilation ducts or burners. Reducing the blasted air may decrease dust mites by as much as 80%, which is great news for allergy sufferers. Here we’ll go through the two primary ways of floor heating.

Hydronic Radiant Floor Heating Systems

Hydronic is the best option for whole-house heating systems and is highly recommended for every new building. Hydronic systems may be retrofitted into an older house, although doing so requires extensive, costly floor demolition. Aside from that, it is essential to realise that the initial investment in floor heating will be greater than that of a regular burner. You may purchase a boiler-based hydronic floor heating system in the range of $7,000 to $13,000. 

On the other hand, the floor heating system may increase efficiency by as much as 40% and can endure for far longer than conventional methods. The typical lifespan of a burner is between 10 and 25 years; however, the heating system may provide 40 years of service.

Electric Radiant Floor Heating

While electric stovetops or heaters employ heated materials to generate heat, electric floor heating implies heat-conducting plastic mats that include coils heated by electricity. A watertight polymer coating protects resistance wires. Because of its high electrical resistance, Nichrome is an excellent material for creating heat. These wires are woven in a crisscross pattern across a mat and then connected to an electrical outlet.

Methods For Estimating Heat Losses From Floor Heating Systems

Heat loss estimates play a crucial role in achieving desirable comfort and performance with underfloor heating systems. Here, precise calculations are necessary for efficient design and maximising heat production, notwithstanding any losses.

Indoor Temperature Controls For Radiant Floor Heating

Hydronic underfloor heating systems are more efficient than other types of heaters. Thus, it’s essential to factor in the actual interior temperature while estimating heat loss. This is due to the fact that a space heated by underfloor ducts would have a lower air temperature than a space heated by radiators without sacrificing convenience. The difference might be as much as 2 degrees Celsius.

As a result, the operational temperature should be used for calculating heat loss when there is a large disparity between the air temperature inside and the mean radiant warmth, as is the case when underfloor heating systems are in operation. Here, we need to consider the inside air temperature to calculate the ventilation inefficiencies.

Hydronic Underfloor Heating Prevents Heat Transfer Through The Floor

Heat escapes from these systems primarily via their ceilings, making downward heat loss a major concern. That’s because heat runs through the floor, as you probably guessed. That’s why building operators need to insulate the floors when installing hydronic underfloor heating systems. To that end, precautions must be made to limit heat loss in this procedure to 10% or less.

Moreover, the underfloor heating pipes ensure no energy is wasted during heat transfer from a hotter to a cooler area. Therefore, heating pipes must not be included in the calculations as a potential source of energy loss.


Among the many options for heating today’s homes and businesses, underfloor heating systems continue to dominate the market. Thus, heat loss computation plays a vital part in the pre-installation procedure to ensure that you get the unmatched convenience, performance, and cost reductions these systems offer. Homeowners may achieve the greatest value out of their system by accurately estimating these parameters, allowing them to reach the end of the payback period sooner than expected.