Under Floor Heating Kits
To ensure maximum efficiency, each warm water underfloor heating system is designed and installed by our engineers to meet the requirements of your property. We will design a underfloor heating system based on your plans and your needs. This may take into account alternative energy forms such as solar and geothermal as the heat generator. We can also take into account such aspects as positioning and concealing the underfloor heating manifold. Unlike some off-the-shelf products we were able to design and construct this manifold to fit within this cupboard.
Another customer requirement was to have heated towel rails on the system that could be operated by the touch of a switch. Again this presented no problem for our design team to incorporate these into the underfloor heating system.
We will present you with an estimate for installing the underfloor heating system for a specific design along with a check list, so that you can compare the true value of our systems with others, that may appear to be a cheaper option on the surface, to ensure that you get the best value for money and not just the lowest price.
Standard installation of a thermal under floor heating system starts with laying of insulation, such as Cellotex. Please note that the cost of the insulation is not included in the quotation because this will already be included in your building costs. However, the cost of laying the insulation is included and this should be deducted from your building costs.
Next the underfloor heating loops are installed and secured. Each heating loop is returned to an accessible manifold with no intervening joints and each underfloor heating zone is connected to actuator heads for thermostatic control. In addition we install the blending valve, circulating pump and associated pipework.
Finally a high-pressure test is carried out on the underfloor heating loops and a certificate is issued which the thermal tech engineer and the client’s on-site representative sign. The floor screed should be laid over the underfloor heating loops as soon as possible to prevent damage to the heating loops. If you have opted for thermal flowing floor screed then this will be included in the installation plan.
The client, should be aware that in the case of cement screeds the underfloor heating must not be used to dry the screed or the structure of the building until the screed has been allowed to dry naturally. Our screeding contractor will be able to advise you on when and at what temperatures the heating may be used, as this will depend on a number of factors that include the depth of the screed, the exact product used, relative humidity and temperature.
However, in the case of thermal tech liquid screed for underfloor heating, the underfloor heating may be used after the first seven days to assist in the drying of the screed, providing the guidelines are followed. We will issue these guidelines on request after the underfloor heating screed has been supplied, as again they are subject to the material used and cannot be given as general advice. If a liquid screed for the underfloor heating is supplied by someone other than thermal tech then the supplier’s advice must be sought for the specific product used.
Thermal tech liquid screed for underfloor heating is ideal for underfloor heating systems and will enhance the response time of any underfloor heating system. The liquid screed is pumped onto the floor as a liquid and as such completely surrounds the underfloor heating loops. Conventional screed is a semi-dry mix and tends to leave air pockets around the underfloor heating pipes thus reducing the surface contact between the screed and the heating pipes. As trapped air makes a good insulator this is the last thing you want around the heating loops.
Also because liquid pumped screed has virtually no air in the mix it can be laid at a reduced depth, for an underfloor heating system that uses 15mm or 16mm pipe the recommended screed depth would be 50mm, yet retain the same strength as a conventional screed. This reduced depth means that there is less screed between the underfloor heating loops and your feet. The combination of the above factors make for a quicker warm up and better temperature control.
In addition, any cement based materials including traditional sand and cement screed shrinks as it dries. When these materials are used with underfloor heating this effect is combined the with constant expansion and contraction movement as the underfloor heating pipes warm up and cool down. By using a liquid calcium sulfate screed for your underfloor heating, which does not have a cementitious binder, this problem is eliminated. Thermal tech flowing floor screeds for underfloor heating are available to customers that have purchased other underfloor heating systems but want to make use of the improved technology in liquid underfloor heating screed.
All that remains is for your electrician to install and connect the supplied thermostatic digital room programmers and underfloor heating control centre, and your plumber to connect the underfloor heating manifolds to your heat generator in accordance with the simple instructions that will be provided.
Using the same provider for your underfloor heating and screed not only overcomes the planning and co-ordination issues that can arise between different companies, but it can also eliminate other difficulties and disputes.
Co-Construct, in a publication entitled “Screeds with Underfloor Heating – Guidance for a defect-free interface” state the following:
Underfloor heating is an established technology. However, while the design and operating principles are well known to building services engineers, the finer points of design and installation may not be known by other specialists such as structural engineers, concrete contractors, installers and facilities managers.
Disputes commonly occur on-site where particular items of work were assumed to have been carried out by another party, and as a consequence the work was not completed. With water-based underfloor heating, a common interface problem is between the heating element installation and the screed. If these interface problems are not understood, failures in system performance and/or failure of the screed may occur.
By using thermal tech for the underfloor heating, and the screed for underfloor heating, then many of these problems can be eliminated.
Trained technicians can undertake repairs on a wide range of warm water underfloor heating systems, in residential and commercial properties. Using state of the art diagnostic equipment, including thermal imaging equipment and digital test equipment, we are able to identify underfloor heating problems including those problems where the under floor pipe loops that carry the water have been damaged. This repair service can also incorporate identifying the source of the leak or damage and excavating a small area of the floor to effect a repair to the underfloor heating pipe. However, please note that our underfloor heating repair service does not extend to relaying the floor, replacing tiles, laminates or carpets etc. and that this would be the responsibility of the client.
We can offer a diagnostics only service, to assist in-house maintenance staff in resolving underfloor heating problems. Or, in most cases, we can offer a full underfloor heating repair service.
For more information or for a free in-home estimate please contact AFB today.