Question - Is water underfloor heating expensive to run?

Answered by: Jeremy Sanders  |  Category: General  |  Last Updated: 21-06-2022  |  Views: 604  |  Total Questions: 13

This is because water underfloor heating systems can warm a room more evenly than a radiator can. As a result these underfloor heating systems are more energy efficient and cost a lot less to run than traditional heating methods. The cost of this will depend on whether you have a cheap gas supplier. Electric underfloor heating can cost three to four times more to run than a warm water UFH system, or a radiator system, that is paired with a gas boiler. This is simply because electric tends to cost far more than natural gas per kWh. Cost of underfloor heating This will depend a little on things like the type of floor you have – solid or suspended, but it is safe to say that a wet system is far more expensive. Electric underfloor heating costs much less, with some systems as cheap as £20 per square metre. So for some it is a very attractive option. Electric underfloor heating systems cost just under 10p per metre squared, when ran for 6 hours. An average bathroom of 3. 5 metres squared may cost around £10. 50 per month to run. Wet underfloor heating systems hook up to existing boilers, replacing the need for radiators. Underfloor heating runs at a lower temperature than radiators, so your builder's suggestion to run the underfloor heating all the time, controlled by the thermostat makes sense. You use your thermostat to set the temperature you want. It is an efficient way of running the system.

Leaving your underfloor heating system switched on all day during particularly cold seasons won't cause any harm – in fact, it's not a bad idea. Leaving your heating on will encourage faster efficiency and warming up times, meaning that you are less likely to feel chilly for longer.

It is advised that in the depths of winter, an underfloor heating system should be kept on at all times. Although it should be at different temperatures depending on usage and activity in the house. This is because underfloor heating can take two to three hours to warm up, so it is best to not completely turn it off.

How long will an underfloor heating system last? The pipes used for underfloor heating must have a projected lifespan of 50 years, in accordance with industry standard DIN 4726; however over 100 years is entirely possible.

The energy required for underfloor heating can be as little as two-thirds that needed for standard central heating. The cost of materials and installation varies, but you will face a bill in the thousands. Against this, the new system will add value to your home, unlike some other so-called improvements.

With the rising cost in energy pricings, underfloor heating is the perfect solution due to its lower temperature than radiators, but an even and pleasurable heat throughout a room, allowing for cheaper running costs, yet a more efficient heating system.

Electric underfloor heating systems Heating mats are generally a bit cheaper as they are a uniform size. The electric wires themselves are fairly thin, making them easier and cheaper to install than a water-based system. However, they are also slightly pricier to run, making them better suited to smaller areas.

The water flow temperature will vary between 35-60°C, depending on the heat losses from the building. If the system operates with thermostatic mixing valves, use 45°C temperature for screeded floors and 55°C temperature for timber suspended and floating floors.

TILE, STONE & POLISHED SCREED The best type of flooring to use with underfloor heating is tile and stone. Tile and stone have high thermal conductivity, meaning that the heat from an underfloor heating pipe or wire transfers to the floor surface quickly. Tile and stone also retain heat well making the system efficient.

Many UFH systems are considered once a home is already built. Traditionally underfloor heating has only been installed at the new-build stage, but with the introduction of a range of retrofit solutions, it is now possible to install UFH into existing houses.

Potential running costs for a 150W/m² underfloor heating system Time On (Hr) 1m² 10m² 1 2. 1p 21. 1p 2 4. 2p 42. 2p 3 6. 3p 63. 2p 4 8. 4p 84. 3p

Underfloor heating is a compatible heating system with carpet. Both electric and warm water systems are perfectly suitable floor heating solutions for use under a carpet floor covering.

Underfloor heating is normally efficient because it effectively turns the whole floor into a radiator. The large surface area means it doesn't have to be a high temperature to warm the room – only a couple of degrees warmer than normal room temperature. It uses 15-40% less energy than traditional radiators.

Underfloor heating water systems are made to be used with heat pumps as they require only a very low water temperature. The best boiler to use is a condensing boiler as they are very efficient. A condensing boiler works by using the latent heat created using another heat exchanger fitted within.