The Heating Company: Under Tile Heating, Under Carpet Electrical Heating Systems & Heating Mats

Site Instructions
Wiring Instructions
Warranty
Thermostats
Price

Under Carpet Heating Site Instructions

Under Carpet Heating Installation Instructions.pdf (32Kb)

In order to comply with the The Heating Company Warranty, the following Site Instructions must be adhered to:

Do not install unless connected to RCD Proctection.
Attempt to position mats in the largest area where solid furniture will not be placed. E.g. Either side of beds, or in the middle of a living area. For the correct lay out a site visit is generally required.
Before you install the UCH mats, check that the underlay has not been stapled to the substrate, or that any other protusion is showing that may damage the mats. IF THERE ARE STAPLES, THESE MUST BE REMOVED or the manufacturers warranty will not apply. The "trade instructions" clearly state that such an application by the carpet layer, is not acceptable.
Roll out the mat, taking into account where the coldtail is to be positioned in the room in relation to the thermostat position.
Once placed roll back 50% of the mat and apply hot glue in small sections to the back of the mat. Adhere element to the underlay and wipe over the element with your hands, ensuring there are no creases or bumps and repeat to other 50% of the mat. Tape down edges of all four sides of the mat to the underlay with duct tape.
To limit the UCH "termination block" being felt, once the carpet is laid and to eliminate stress on the element, please follow instructions (Termination block = approximatey 15cm each side - where the label is placed)
Cut the "top only" of the underlay with a stanley knife at the exact dimensions of the block area, until the block fits snuggly and level with the underlay. This will require patience, as the idea is NOT TO REMOVE ALL THE UNDERLAY and to create THE LEAST AMOUNT OF DEVIATION IN HEIGHT FROM THE BLOCK AND THE REST OF THE UCH MAT.
Apply duct tape over the termination block so to secure in place.
From the cold tail joint cut a line in the underlay back to the thermostat position and wedge the cold tail in the cut line. Endeavour to make the cold tail lie flat.
Tape over the cold tail track to secure position. Ensure that the cold tail join is level with the underlay.
Place the "slip cloth" over the UCH mat and position until there is a 100mm overhang on all sides of the mat.
Spot glue the slip cloth to the underlay, on all four corners and sides. It may be necessary to oversee the rolling out of the carpet to ensure that the carpet layer does not disturb, or damage the UCH installation.
Ensure that the heating mats switchboard sticker supplied, is placed in the switchboard.
Very Important Notes:
- Where 2 mats are required please state, on any order, the length of cold tail if longer than 3 metres eg: Hallways.
- Where possible, place cold tails away from traffic areas, and track back along walls, to the thermostat position. For this purpose, you will need to allow for extra length of cold tails when ordering your mats. Attention to design!!
- When ordering your UCH mats from the factory, indicate where you would like the termination placed... any corner, any side. Again attention to design. This will help the termination block to stay away from traffic areas.
- UCH mats are not suitable for use on stairs.
- UCH mats should never be folded, for transit only rolled.
Electrician
- Wiring must be in place before heating can be installed. Allowance must be made for extra heat load as stated on the customer's quotation. Please refer to wiring instructions supplied with customer quotation.
- Supply and install one flush box Vertically for each thermostat.
- Supply and install a draw wire from the flush box down to the floor level as per wiring diagram.
- Supply and install sub circuit wiring to each thermostat - Should be RCD circuit breaker protected.
General
To ensure a prompt service please allow three weeks from the time of order to installation, however we are often able to supply in shorter lead times, if required.

Please note:
Hotwire UCH mats should only be used in conjunction with Hessian backed carpets or similar. It is not suitable for foam or rubber backed carpets! Very occasionally certain thinner carpets may show/feel an imprint of the heating mats through the carpet. Please check with your installer to ensure your carpet and underlay is suitable. The Heating Company will not take responsibility for any imprinting once the heating mats have been laid.

Wattage design is dependant on climate extremes and insulation factors. The Heating Mats are manufactured @ 170 watts/m2. THC recommends the following -

North Island = 80 watts/m2 of the total room area. (40-50% cover)
South Island = 100 watts/m2 of the total room area. (65% cover)