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Underfloor Heating

This form of heating gives you a more comfortable heating of your home as you slowly heat the house with a nice low level heat rather than a radiator burning away in the corner creating a natural draft through the room.

Underfloor Heating System Design


The design of a underfloor heating system is very important to make sure the system will give enough heat into the building.  Underfloor heating is not suitable for old drafty buildings but are very suitable for newer or upgraded houses with insulation level close to current building regulations.


It is important that you also tell us what sort of floor covering you want to have as some carpets and engineered flooring are not suitable on some floor types due to the insulation properties of the floor covering.


Pipe spacing will give you what the floor temperature will be and if the floor temperature is too high it will make it very uncomfortable.  When comparing systems please check what pipe spacing they are offering as it will be a little cheaper to install but the system will not deliver the comfort levels you would expect.


If you hare going to connect the system to a heat pump the pipe spacing should be decreased on average 50mm to ensure you keep a high COP from your heat pump, there are studies by BRE and Carbon Trust shows that fuel savings are a lot higher with a correctly design underfloor heating system that others.


Once you accept the price for our system then we will produce a design and CAD drawings to show were the pipe work will be laid into the floor.  If you have chosen to install the system yourselves you can use the drawings to make the installation simple or we have installers that can lay your underfloor heating quickly and efficiently.



Underfloor Heating Floor Types


Underfloor Heating screed

Screeded Floor 

Typical ground floor installation is made up with a sub floor then 100mm of insulation like Celotex GA400 were we install the underfloor heating using clips or plastic bars that can be installed into the insulation. Once the underfloor heating is laid then there is a screed floor laid on top.  The typical screeds are 75mm but some reinforced liquid screeds can get down to 30mm.  


Advantages of this type of floor is high output at up to 100 watts per meter with suitable floor covering.


Disadvantage is that the floor is slow to heat up and cool down so there can be over heating in the spring and Autumn.


Suspended Floor

Spreader Plates 

This is typically found on 1st floor or above were we are installing Underfloor heating between joists. The typical make up is 50mm of Celotex GA400 or equivalent otherwise you fill the joist with mineral wool. Then there is aluminum plates.  The pipes are then laid into the groves of the plates.


Advantages of this system is that the floor has a quick response time so you do not get overheating or long heat up times.


Disadvantages is lower output and often it is not suitable to lay thick carpets onto the floor unless you have a super insulated house.


Underfloor Heating floating floor

Floating floor

It is usually very difficult to retro fit Underfloor Heating but occasionally you can if you have sufficient height that we can install a floating floor system. We have different types of floating floor systems that have higher outputs with very low profile. Systems are between 30mm to 50mm plus your floor finish,


Advantage of this system quick response time and avoids costly  digging out of the floor.


Disadvantages is lower output and that you need to cut down doors and raise skirting board heights.