
What temperature should I Set my underfloor heating?
For an efficient system and quick response times, set your underfloor heating temperature to 16°C in “off” periods. This will result in a quicker warm up time as the heating system needs to supply less energy.
What type of underfloor heating is best for a house?
Electric underfloor heating In basic terms, a wet underfloor heating system features pipes, filled by warm water and powered by a boiler or heat pump, concealed within the floor, and typically embedded within a floor screed. This is the best type of underfloor heating for those building from scratch and/or planning a whole-house system.
Should I change my floor finish when choosing underfloor heating?
Again, if your chosen floor finish only allows a floor temperature of 27°C degrees and the heat output requirement is higher than what can be achieved with a 27°C degree floor, you could consider changing the floor material in order for an underfloor heating system to work as the sole source of heat.
How to install underfloor heating pipes?
4. Fix the underfloor heating pipes Secure the pipe to the insulation as you go using pipe staples. Ensure you fix the pipe with the correct spacing to ensure optimal heat distribution. 5. Install across the whole floor Loop the pipe across the whole floor area, using multiple loops for large spaces. 6. Prepare the screed

What is the most efficient way to run underfloor heating?
For an efficient system and quick response times, set your underfloor heating temperature to 16°C in “off” periods. This will result in a quicker warm up time as the heating system needs to supply less energy.
Is it better to leave underfloor heating on all the time?
Should you leave your underfloor heating on all day? 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.
What temperature should underfloor heating water be set at?
between 35 and 55 degrees CelsiusTypically, the temperature of the water in an underfloor heating system is between 35 and 55 degrees Celsius - depending on the floor construction.
Should the floor feel warm with underfloor heating?
it should feel slightly warm. put a rug or carpet down for an hour. It will insulate the floor, preventing heat loss to the air, so when you put your hand under the rug, that section will be noticably warm. If it is a concrete floor, it may take a couple of hours to warm up.
Does underfloor heating use a lot of electricity?
It costs less than 10p to run 1m² of standard underfloor heating at full power for six hours. Although some people still expect underfloor heating to be expensive to run, the reality is that both the initial installation cost and the ongoing running expenses can represent great value for money.
What is the ideal temperature for in floor heating?
about 75 FWhat are the best thermostat settings for radiant floor heating? Radiant floor heating produces room temperatures very close to ideal: about 75 F at floor level, declining to 68 F at eye level, then to 61 F at the ceiling.
What is a good floor temperature?
between 75-80 degrees FRadiant floors should not exceed 85 degrees F at the surface. 85 degrees is our skin temperature, so anything warmer starts too feel too warm. Floor coverings other than stone or tile REQUIRE a maximum temperature below 85 F. Most people are very comfortable between 75-80 degrees F.
What should the boiler be set at on underfloor heating?
Underfloor heating requires a flow temperature of 50°C flow and 40°C return, so using UFH with a condensing boiler is ideal for taking advantage of this.
Is underfloor heating cheaper to run than radiators?
Underfloor heating is more eco friendly than using radiators and uses less energy, meaning they cost much less in the long run! As long as you have installed it properly, you could save about 25% of the energy you would use with a radiator, and up to 40% when running from a heat pump.
How do you maintain underfloor heating?
Underfloor Heating Maintenance and Servicing Checklist for InstallersCheck system pressure. ... Check the colour of the water in the flow meters. ... Remove excess air in the system. ... Check the system is independently firing the boiler. ... Repeat step 4 for each UFH loop. ... Check thermostat programming.More items...
How many hours a day should heating be on uk?
Policemen coming round to gauge the temperature in your spare room is a strange thought. On average, UK homes are heated for about eight hours a day in winter – ten hours a day for homes that have one sustained heating period and seven hours a day for the more usual two heating periods.
How much does it save to turn down the temperature of an underfloor heating room?
Turning your underfloor heating room thermostats down by just 1 degree could save around £80 and 330kg CO2 per year, according to the Energy Savings Trust.
How many types of underfloor heating are there?
There are two main types of warm water underfloor heating and they are controlled in very different ways:
Do I need to update or replace my existing heating controls?
A heating system should have a boiler thermostat, programmer/timer, and room thermostats (or thermostatic radiator valves with radiators). Providing you have these, it’s generally just a case of understanding how to effectively use them.
Does it matter where heated floor thermostats are located?
Yes, definitely. Underfloor heating room thermostats should be placed in a location where they can receive a free flow of air from the room , to read an accurate temperature for balancing underfloor heating.
What is a Nu-Heat thermostat?
Nu-Heat offers a range of programmable and dial thermostats to suit every property. The smart neoStat range can offer remote control of the heating system through a downloadable app.
How long does it take for an underfloor heating system to heat up?
With these two figures, you can now work out an accurate timing schedule for the underfloor heating heating system. If you know it takes 30 minutes to reach 21°C, you can set the heating to come on half an hour before you arrive home from work or get out of bed.
Why delay underfloor heating?
Delay the start-up of underfloor heating to the latest possible moment, to avoid unnecessary heating and ensure the property is warm at the programmed time.
What is Underfloor Heating?
Wildly popular for a number of years in Scandinavian territory, underfloor heating is exactly as its moniker suggests.
What is the biggest factor in deciding between a water or electric underfloor heating system?
Probably the biggest factor at play in deciding between a water or electric underfloor heating system, outside of the expense, is the layout and specifications of your home on the whole.
Can Underfloor Heating be fitted underneath any type of flooring?
The versatility and flexibility of underfloor heating is one of its absolute key advantages too. Football fans could do worse than imagine it as the James Milner of home heating solutions; instead of delivering a premium performance in almost any position, it can do so installed beneath almost any flooring type.
Is Underfloor Heating easy to install?
At first thought, the idea of a troublesome and disruptive installation process is one of the most off-putting elements associated with the potential addition of underfloor heating.
Why do you put polythene foam on wood flooring?
In a lot of cases, a layer of polythene foam is placed between the floating wooden boards and heating system to guarantee the underfloor heating operates as effectively as possible .
Can you install underfloor heating with a new boiler?
There are a few ways that your underfloor heating system can be linked to a new boiler or existing central heating system, which does simplify the installation process to some extent. But realistically, particularly so if you are hoping to install wet underfloor heating, it is ideal to do so in a new property or as part of a full-scale renovation project.
Can stone be used as underfloor heating?
It should be noted that certain materials, such as stone, are natural conductors of heat, so they can heat up quicker and retain their warmth better than other types. However, professional installers will be able to adjust the heat output, underlay and screed to ensure your underfloor heating works to very best effect alongside the likes of laminate or wood flooring too, or practically any other type.
How Does Underfloor Heating Work?
Ironically, perhaps, UFH is actually closer to being a ‘radiator’ than a radiator is. UFH heats the mass of the floor (the screed and the floor finish) and that heat then (mostly) radiates into the room — there is some convection going on but over 80% of heat transfer is by radiation.
What is the operating temperature of an underfloor heating system?
This is due to underfloor heating having a lower operating temperature (around 40°C) than a radiator system, which normally operates at around 65°C. Underfloor heating works really well with renewable technology such as heat pumps, which have a low flow rate.
What are the Cons of Underfloor Heating?
Underfloor heating is more expensive to install than a comparable radiator system — it typically costs 20% to 50% more .
Can I Install Underfloor Heating into my Existing Home?
In a new build, the extra cost of underfloor heating relative to the whole build cost is seldom a deal breaker.
What Thickness of Screed Do I Need with an Underfloor Heating System?
The thickness of the floor screed during your installation process will make all the difference. The screed thickness in which the warm wet pipes sit will have a dramatic impact on how the system is used.
Can I Use Underfloor Heating With Polished Concrete Floors?
Concrete is a superb heat conductor, so polished concrete floors work really well with underfloor heating. The thermal mass of your concrete will retain heat and ensure your room stays warm for longer after your heating is switched off than would be the case with a radiator system. They are easy to pour over the pipework and they absorb and hold the heat produced well. Seek the advice of your installer before switching your underfloor heating on though — too soon and it could crack.
How much energy savings does an underfloor heating system offer?
An underfloor heating system also offer a 15% reduction in energy demand compared to a radiator system, which is hard to ignore.
When to run underfloor heating?
When To Run. It is best to run the underfloor heating 24/7 during winter. With system boilers, 2 port motorised valves mean that the underfloor heating system can work completely independently, even where there is a combination of radiators and underfloor heating.
How far away should a thermostat be from the floor?
Try to avoid positioning them in direct sunlight or a draft, for this same reason. Ideal positioning is around 1.5m from the floor, near a light switch.
What temperature should the water flow be on a concrete floor?
The pump at the manifold is normally set on speed three and the mixing valve can be set at 40-45°C (if it is a screeded concrete floor) and 50-55°C (if it is a timber suspended floor). The water flow can also be adjusted to each underfloor heating loop separately if required.
How does a room thermostat work?
A room thermostat works by sensing the air temperature, switching on the heating when the air temperature falls below the thermostat setting and switching it off once this set temperature has been reached. A programmable room thermostat is both a programmer and a room thermostat.
How slow is U/F heating?
As you have discovered U/F heating is very slow to respond, both heating and cooling. In fact it works more like a storage heater so hoping that it will respond like a normal boiler will not be everso effective.#N#The ideal way, especially if you've got a heatpump is to set a background temperature of around 17 degrees and just increase the temp during the times that you want it higher taking into account the lag between getting up to temp and cooling down again.#N#Letting the place get stone cold overnight or during the day and expecting it to recover within a hour or so doesn't work.#N#What is your flow temperature - our flow is set to between 30-40c (weather compensated) and the programmable room stats (we've got eight) are set to the desired working temps for the times that the rooms are in use eg, lounge 0800-2200, bedroom, bathroom 0700-0900 and 2000-2200, study 0800-1700 (taking the lag into account, although the stats have optimum start which take this into account). We use around 19-20 as our room stat setting because the heat comes up through the floor we dont need it set as high as if we had radiators - even the draughts are warm.#N#They then set back to 17 degrees for the rest of the time. The hall and spare room are set to 17.#N#This allows the heating to do it's own thing including coming on overnight if necessary - we dont turn it off just down.. If we let the place get stone cold it can take 24-36 hours for the temperature to recover. We could increase the heatpump flow temps but the efficiency drops and the consumption increases so the lower you can keep the flow temp the less it costs to run (its reckoned that for every degree about 35c flow temperature increases the consumption by 2.5%.)#N#Heatpumps dont heat above 50-55 degrees, so to get your hot water or flow above that will need the the back-up/boost immersion heater which will cost you dearly.#N#It took me some time to tweak the temperatures to get it just right - leaving it a couple of days between adjustments because of the slow response. It's also worthwhile taking lots of leccy meter readings (ideally daily, when you get up and when you go to bed) for a few weeks so you can get a feel of how much energy you are using and how any adjustments affect your consumption as well as your comfort.#N#Lastly, make sure that you are on a decent tariff, IMO and e7 tariff is not ideal as you are using energy all the time, - we pay 12.25p/kwh and get through an annual total of 7200kwh of which about 3500 is for heating & hot water via our heatpump.
How long does it take for U/F to get up to temp?
Our u/f heating isn't buried in concrete, its an overlay system which is a lot more responsive but, as I said earlier, ours can take 24-36 hours to get the place up to temp if it's left to get stone cold and still takes a fair while to increase from 17-19. That's why we don't let the place get cold. The bathroom and kitchen are a bit more responsive as they are tiled but the other rooms are carpeted which slows it down
How many watts does a garden heater use?
Also be aware that the garden unit will have a crankcase heater of a couple of 100 watts in standby mode, adding 2 or 3 kWh a day when idle.
Is it ok to turn down the TRVs upstairs?
Look at the balancing as well, if upstairs is toasty warm and down stsirs isn't, then it might be worthwhile turning the upstairs TRVs down a bit just in case they are diissipating more heat than the heat pump is delivering and starving the underfloor system downstairs. Does the floor seem warm to the touch. If you've got carpets, have you got low tog carpet and underlay.
How much power does an underfloor heating system use?
If your floor is well insulated and you have a reasonably modern home, the power of an underfloor heating system usually needs to be between 14-20W/m² to give the required output. When it comes to choosing underfloor heating, a 15-20W/ft² system is usually specified to reduce heat up times as the system will not be “on” continuously. When the system is only “on” half of the time the room is used, the power provided is half of the Wattage of the system. That is, a 20W/ft² system usually provides 8-12W/ft² per hour.
How to reduce heat loss in a heated floor?
If you don’t want to change the floor finish or can’t change the size of the heated floor area, increasing overall insulation is a good way to reduce heat loss and achieve a lower heat output requirement. Adding cavity wall, roof and additional floor insulation are all good ways to keep the heat in and will lower the heat output requirement of any heating system.
How can insulation increase heat output?
The heat output to the floor surface can be significantly increased by using insulation, such as Warmup insulation boards, under the heating. This may be immediately below the heating units, pipes or below the screed or medium that the heating is embedded within. If no insulation is used, the heat generated will move not only upwards but downwards as well and in the worst case, even heat the ground below the structure wasting energy, money and the heat you require.
How does floor heating affect the output?
The size of the heated floor area is directly linked to the heat output as the larger the heated area, the higher the maximum heat output of the system. However, the size of the heated floor area in relation to the overall room size affects the output too as the larger the room gets, the higher the heat loss becomes. If the heated area is significantly smaller than the overall floor or room size (<80%), it may be difficult for an underfloor heating system to create enough heat for primary heating unless the home is well-insulated.
Why is room temperature important?
An accurate room temperature control is essential in ensuring the correct heat output. A smart thermostat does not only offer accurate control, but can also save money on heating bills.
Can underfloor heating be fitted under permanent fixtures?
In certain rooms, such as bathrooms, large parts of the room are covered by permanent fixtures such as baths, toilet or sink. As underfloor heating should not be fitted under permanent fixtures, in these circumstances only small parts of the floor surface can be heated. This can significantly affect the heat output.
Do you block heat from underfloor heating?
As a final note, bear in mind that once you’ve gone through all the effort of ensuring your underfloor heating system provides enough heat, it is crucial that you do not block the heat being emitted from the floor. Insulating and heat-blocking materials, such as rugs, furniture (especially bean-bag chairs!), will significantly hinder the performance of the system.
