prowarm 11m2 150w Underfloor Heating Mat Instruction Manual
- May 15, 2024
- prowarm
Table of Contents
Suitable for
most floor coverings
(always check with floor manufacturer)
UNDERFLOOR HEATING SYSTEM
INSTALLATION MANUAL
11m2 150w Underfloor Heating Mat
Thank you for investing in our industry leading ProWarm™ underfloor heating
system
THIS INSTRUCTION MANUAL MUST BE READ ENTIRELY BEFORE COMMENCING ANY
INSTALLATION
This instruction manual contains important information regarding the safe
installation and operation of your heating mat/s.
These installation instructions are not intended to replace or supersede the
installation instructions provided by the manufacturers of your floor coverings
but to supplement them.
Both sets of installation instructions should be complied with, (always check
with the floor manufacturer if you are in any doubt that our heating mat/s are
suitable).
Our mats are extremely strong but care must be taken when installing them,
please follow the step by step installation guide to ensure a carefree
installation.
CE approved systems
Our heating cables are CE approved, certified and manufactured to the highest
standards using state of the art Teflon coated cables. All our cables are
designed to be 17th Edition Part P compliant and the instructions we supply
with them include as much information as possible to ensure that all
installations comply with them (please contact us if you are in any doubt).
All of our heating mats can be laid either way up, they have a sticky mesh on
one side and three strips of double sided tape on the other side.
This means that the heating mat can be firmly held in place whether it is
installed with the cables facing down or facing up making your installation
easier.
NOTE: You may still need to use small pieces of duct tape to hold the mat
in certain places to prevent it from rising when using a levelling compound
Before you begin Installing:
Please read through these instructions carefully and check that you have all
the components required.
ProWarm™ heating system is designed for installation below most tile/stone
floor coverings, it may also be installed below engineered/laminate wood floors,
vinyl and low tog thin carpets but in these cases the heating mat/s must be
first covered with an 8-10mm thick suitable latex based levelling compound
Always check with the floor covering manufacturer for suitability of use with
electric Underfloor heating systems, also check the suitability of any
adhesives/latex compounds that are intended to be used with both the floor
coverings and the heating system.
Contents of Heating Mat Kit
3mm twin-core heating mat
Disposable roller for application of primer
Digital thermostat and separate floor sensor
Guarantee Certificate
Instructions
Conduit for floor sensor
Bottle of thermal primer/s
Installation Notes
The system requires a mains voltage 230/240v and must be connected by a
suitably qualified person.
All wiring must conform to lEE 17th Edition Part P regulations.
The cold tail on the mat is coloured black and is a twin core and earth cable,
or in some instances it may have a silver earth braiding wrap around the twin
cores. The heating element also contains a built in return meaning that it
only has to be connected to the thermostat from one end.
For larger areas, if two or more mats are supplied, it will be necessary to
use a connection or junction box to join the heating mats (cold leads)
together prior to connecting a single cable to the thermostat (Wire used must
be of a suitable size, selected by an electrician). MAX Load on one thermostat
16Amps.
The system is suitable for installing on any sub-floor which is sound and
suitable for tiling, in the main this will be concrete, plywood or cement
faced tile-backer boards. Some water resistant composite boards may also be
suitable, but it is not recommended to tile directly onto hardboard, MDF or
standard grade chipboard as these substances absorb moisture and subsequent
swelling could cause tiles to crack or dislodge.
NOTE: if installing on a newly finished concrete screed the required minimum
drying out or ‘curing’ period should be followed before installing (this is
typically 1mm per day in good conditions).
The electrical and electromagnetic fields generated are negligible and well
within all recommended European and International guidelines.
The heating mats must not overlap and the heating cable MUST NOT be cut or
cross at any point.
The joint between the heating cable, cold tail and end joint MUST be located
under the floor and encapsulated in self levelling or tile adhesive and MUST
NOT be taped over.
Professional Electrical Installation
The installation of electrical systems presents risks of fire and electrical
shock which can result in personal injury.
Caution should always be taken to guard against each such risk. Only a
qualified electrician should connect the heating mat/s to the thermostat and /
or to the electrical supply circuit.
Carry out all electrical work required to install ie. chase walls and install
back boxes for fused spurs and thermostat position. Please make sure all works
conform to the current regulations.
Caution:
Due to the new requirements of the Part P Regulations, only a qualified person
who is familiar with the construction and operation of the apparatus and the
hazards involved shall make the final connections to the electricity supply and
test the installation.
ProWarm™ Underfloor Heating Systems
Must be controlled via an rcd protected circuit, for systems not exceeding 13
amps a fused spur that has contact separation in all poles that provides full
disconnection under Cat 3 conditions can be used, for systems larger than 13
amps a suitable protective device that complies with regulations must be used
(please contact us for technical assistance or consult a fully qualified
approved electrician). If you are in any doubt about the electrical
installation then please contact our technical advice centre.
IMPORTANT
All such connections MUST be in accordance with BS7671 17th Edition Part P
wiring regulations.
Note: When installing thermostats in bathrooms they should always be
located outside the room and use the floor probe supplied, always check with a
qualified electrician that all electrics are in safe and suitable zones.
Testing
Each and every ProWarm™ mat is carefully tested before it is shipped from the factory and is packed suitably to avoid damage during transit. However, damage does sometime occur in storage or transit, and sometimes during installation. We strongly recommend you test your mats:
After unpacking them but before you install them.
After you have installed them but before you install the floor covering (i.e.
while the mats are still exposed).
After installation of the floor covering but before the thermostat is
connected.
A simple test is a visual inspection to make sure there is no visible damage
to the heater, and in particular to the cable component in the heater. A
simple electrical inspection can be done with an ohm metre to make sure the
ohm resistance is what it should be (see page 9). Ohms resistance can vary
significantly depending on the ambient temperature and an allowance of – 10% to
- 10% from the nominal value is acceptable. At this point an insulation
resistance test must be carried at 500v DC out by a qualified electrician.
Please see table on page 9 for the values you should see when testing the mat.
Installation Instructions
STEP 1 Ensure that the sub-floor is solid and suitable for tiling, free
from dust and debris. Wooden sub-floors should ideally be reinforced to prevent
flexing and the possibility of tiles dislodging.
This can be reinforced using a suitable WBP or Marine plywood or insulated
tile-backer boards such as ProWarm™ Backerboards. Bitumen bases should be
covered with a suitable backerboard or a 3-5mm levelling compound.
DO NOT install the heating mat directly onto a bitumen base.
STEP 2 Prime the floor using the acrylic based primer contained in the kit
(not suitable for anhydrite screeds)
Once primed leave to dry (typically 1-2 hours) . Once primed avoid any excess
foot traffic over this area. The purpose of priming is to promote greater
adhesion of the tape and reduce the amount of moisture absorbed into the sub-
floor.
ALWAYS CHECK with tile adhesive/levelling compound manufacturer that the
primer is suitable for use with their product/s, please contact our technical
help centre if you are in any doubt.
STEP 3
If using ProWarm™ tile backerboards or XPS insulation boards, do so in
accordance with the manufacturer’s instructions, we do advise staggering the
boards in a brick bond style and making sure the boards are fixed using
suitable flexible adhesives to solid floors and/or mechanically fixed to wooden
sub-floors @ 300mm centres using suitable screws and washers.
(DO NOT use XPS insulation boards on wooden sub-floors)
(DO NOT use ProFoam insulation boards with this heating system)
STEP 4 At this point we recommend referring to the testing procedure on page 6, please take time to carry this out as it is extremely important.
STEP 5 Prepare floor plan of the area to be heated and identify suitable location of the fused spur and thermostat position – mark the layout of the underfloor heating mat on the floor plan. This is an important step and must be carried out correctly to ensure that all the mat is used up. Once a mat has been unrolled it can not be returned.
STEP 6 Now start installing the floor heating mat from the thermostat
position. Roll out and secure the mat to the floor. The heating mat has a
sticky mesh, simply press this down onto the floor and it will hold in place.
If you need to turn the mat 90 degrees upside down you can use the double
sided adhesive strips to hold the mat in place. A small amount of additional
cloth tape is provided to ensure the mat is flat to the floor in places where it
is uneven.
DO NOT use excessive long strips of tape along the edges of the heating mat /s
as this can cause problems with adhesive/latex bonds, please ensure any tape
used is primed with suitable primer before applying adhesives/latex.
The floor heating mat should be between 50-100mm from the wall perimeter. Note:
when installing around awkward shapes like a toilet or sink the cable can be
removed from the mesh matting and placed loose on the floor to suit the shape
(fix with minimal duct tape to hold in place), at no point must the cable be
spaced closer than 50mm between any 2 loops of cable.
NOTE: thermostat shown for illustration is to be sited outside the bathroom, please consult qualified electrician if in any doubt of zoning regulations.
Resistance Values
Twin Conductor 100W / m2 / 230 VOLTS
| Width | Length | Area | Watts | Resistance |
|---|---|---|---|---|
| (M) | (M) | (Sq.M) | (W) | (Ohms) |
| 0.5 | 2 | 1 | 100 | 529 |
| 0.5 | 3 | 1.5 | 150 | 352.7 |
| 0.5 | 4 | 2 | 200 | 264.5 |
| 0.5 | 5 | 2.5 | 250 | 211.6 |
| 0.5 | 6 | 3 | 300 | 176.3 |
| 0.5 | 7 | 3.5 | 350 | 151.1 |
| 0.5 | 8 | 4 | 400 | 132.3 |
| 0.5 | 9 | 4.5 | 450 | 117.56 |
| 0.5 | 10 | 5 | 500 | 105.8 |
| 0.5 | 12 | 6 | 600 | 88.17 |
| 0.5 | 14 | 7 | 700 | 75.6 |
| 0.5 | 16 | 8 | 800 | 66.13 |
| 0.5 | 18 | 9 | 900 | 58.8 |
| 0.5 | 20 | 10 | 1000 | 52.9 |
| 0.5 | 22 | 11 | 1100 | 48.09 |
| 0.5 | 24 | 12 | 1200 | 44.08 |
Twin Conductor 150W / m2 / 230 VOLTS
| Width | Length | Area | Watts | Resistance |
|---|---|---|---|---|
| (M) | (M) | (Sq.M) | (W) | (Ohms) |
| 0.5 | 2 | 1 | 150 | 352.7 |
| 0.5 | 3 | 1.5 | 225 | 235.1 |
| 0.5 | 4 | 2 | 300 | 176.3 |
| 0.5 | 5 | 2.5 | 375 | 141.1 |
| 0.5 | 6 | 3 | 450 | 117.6 |
| 0.5 | 7 | 3.5 | 525 | 100.8 |
| 0.5 | 8 | 4 | 600 | 88.2 |
| 0.5 | 9 | 4.5 | 675 | 78.37 |
| 0.5 | 10 | 5 | 750 | 70.5 |
| 0.5 | 12 | 6 | 900 | 58.8 |
| 0.5 | 14 | 7 | 1050 | 50.4 |
| 0.5 | 16 | 8 | 1200 | 44.1 |
| 0.5 | 18 | 9 | 1350 | 39.2 |
| 0.5 | 20 | 10 | 1500 | 35.3 |
| 0.5 | 22 | 11 | 1650 | 32.06 |
| 0.5 | 24 | 12 | 1800 | 29.39 |
Twin Conductor 200W / m2 / 230 VOLTS
| Width | Length | Area | Watts | Resistance |
|---|---|---|---|---|
| (M) | (M) | (Sq.M) | (W) | (Ohms) |
| 0.5 | 2 | 1 | 200 | 264.5 |
| 0.5 | 3 | 1.5 | 300 | 176.3 |
| 0.5 | 4 | 2 | 400 | 132.3 |
| 0.5 | 5 | 2.5 | 500 | 105.8 |
| 0.5 | 6 | 3 | 600 | 88.17 |
| 0.5 | 7 | 3.5 | 700 | 75.57 |
| 0.5 | 8 | 4 | 800 | 66.13 |
| 0.5 | 9 | 4.5 | 900 | 58.79 |
| 0.5 | 10 | 5 | 1000 | 52.9 |
| 0.5 | 12 | 6 | 1200 | 44.08 |
| 0.5 | 14 | 7 | 1400 | 37.79 |
| 0.5 | 16 | 8 | 1600 | 33.06 |
| 0.5 | 18 | 9 | 1800 | 29.39 |
| 0.5 | 20 | 10 | 2000 | 26.45 |
| 0.5 | 22 | 11 | 2200 | 24.05 |
| 0.5 | 24 | 12 | 2400 | 22.04 |
STEP 7 When you reach the end of the room the mat can be cut as shown
here.
DO NOT cut the cables.
COLD TAIL AND END JOINT INSTALLATION
When installing the heating mat you need to be careful with how you install
the end joint and cold tail joint (the join between the supply lead and the
heating mat). They can potentially overheat if the following steps are not
taken.
As the joints on the heating mats are a much larger diameter than the heating
element it is inevitable that you will need to cut a small channel or groove
for them to sit into the subfloor or the insulation board.
Once they have been installed in this groove it is important that you do no
cover them with tape as this will create an air void preventing the joint from
dispersing its heat, this can lead to a potential failure.
The cold tail joint can be secured in place by taping the cable either
side of the joint, a small piece on the heating cable and a small piece on the
cold tail. This will ensure the joint is NOT covered with tape.
The end joint can be secured in place by taping the red heating element just before the joint to help secure it in place. This will ensure the joint is NOT covered with tape. Both these heating joints MUST now be fully encapsulated within levelling compound and/or tile adhesive.
STEP 8 Check the cable resistance and insulation resistance values after
laying.
Check if these values are consistent with pre-install values. Record values on
the guarantee certificate.
STEP 9
Depending on the type of mat supplied the cold tail (black lead) may have
either a solid earth cable or an earth braid wrapped around the internal
cores, this needs to be unbraided by using a screwdriver and pulling down the
braid to separate the strands, these can then be twisted into a single strand.
The earth from the mat can then be connected to the earth from the incoming
supply by using the earth terminal in the back box. If using a plastic box
with no terminal then a suitable terminal block can be used.
At this point an insulation resistance test must be carried at 500v DC out by
a qualified electrician. The rest of the thermostat connections can be made
according to the separate instructions provided.
|
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STEP 10 Position the sensor in the black conduit supplied from the
thermostat position down in between two runs of cable and tape into position.
If using insulation boards, these can be cut to allow the conduit to be placed
inside. If installing directly onto plywood then a groove can be cut using a
sharp chisel (beware of pipes). The joint between the heating cable and the
cold tail can also be placed inside a groove in the floor as this can be bulky
and difficult to tile over. The sensor wire can be shortened or lengthened. If
you need to cut the sensor wire you must only cut the end with the exposed
wires.
DO NOT cut the end which contains the plastic sensor. The connections to the
thermostat can now be made.
STEP 11 Test the cable’s resistance again using a multi-meter, an insulation resistance test should also be carried out to ensure the cable is free from damage.
STEP 12 If possible cover the cables with a thin layer of suitable latex
based levelling compound (5-6mm).
This will help protect the cables when tiling. You may tile directly over the
cables, however extra care must be taken not to dislodge the cables or to
damage the cable in anyway
If you are using a suitable vinyl/ carpet or engineered/laminate floor as the
final covering then we recommend a minimum of 8mm suitable latex levelling
compound to cover the heating mat/cables to ensure even heat distribution.
You can now lay your flooring according to your floor manufacturer’s
instructions. Please refer to adhesive manufacturer’s guidelines for drying
times before turning on your heating system, this is usually around 7 days,
the floor temperature should be increased gradually by 1-2 degrees per day over
a 2 week period to reduce the risk of force drying. If in any doubt please
check with adhesive/latex manufacturers for advice.
STEP 13 Tile the floor using a flexible tile adhesive and grout as per
industry standards and manufacturers conditions. Finally wait at least 1 week
before turning on to allow time to dry. NOTE the heating may be slow to react
at first, especially if installed on a new screed floor or in a new building.
Start by setting the floor temperature at approx 18°C – and build up by 1°C per
day until your desired temperature is reached.
Please see separate instructions for connection and operation of digital
thermostat.
Do’s and Dont’s for Installation
Do read through these instructions carefully before beginning work.
Do use flexible adhesives and grouts.
Do test the cable before tiling.
Do be careful not to damage or dislodge the cable during tiling.
Do ensure the cable is spaced no closer than 50mm between loops.
Do try to protect the cable with cardboard or carpet during tiling.
Do wait at least 7 days before turning on the system.
Do read the separate installation and operating instructions for the
thermostat.
Do ensure the joint between the cold tails and heating cable is beneath the
tiles.
Don’t attempt to cut the heating cable at any point.
Don’t allow the wires to cross or touch.
Don’t allow excessive foot traffic over the wire before tiling.
Don’t cut tiles over the heating cable.
Don’t place tools or stacks of tiles on top of cable.
Don’t place any product over the floor covering that has a higher tog value
than 2.5.
Don’t place any bean bags or fixed furniture over the floor covering.
Don’t place cable closer than 100mm near any pipes.
Don’t turn on the heating mat/cable while it is rolled up or still on the
drum.
Don’t tape over the end joint or the cold tail joint
IMPORTANT
Please ensure that the cold tail joint (the join between the heating cable and
flexible supply lead) is fully encapsulated in adhesive or levelling compound
underneath the floor covering.
Please ensure that the end joint (the join at the end of the cable which is
black) is also fully encapsulated in tile adhesive or levelling compound
underneath the floor covering.
Both the cold tail joint and end joint MUST NOT be covered with tape, this can
cause the cable to overheat and eventually fail!
DO NOT BEND THE COLD TAIL JOINT AT ANY POINT
Lifetime Warranty
ProWarm™ floor heating mats come with a full lifetime warranty.
The warranty does not cover installations made by unauthorized persons or
faults caused by incorrect design by others / misuse / damage caused by others
/ damage in transit / incorrect installation and any other subsequent damage
that may occur. Replacement will be fully chargeable if the damage is because
of any of the above reasons.
Please visit website for full terms and conditions.
www.ProWarm.com
Need Help installing your underfloor heating?
We can recommend approved electrical contractors who can install your heating
from start to finish
Call us on 01268 567019 and we will be happy to help.
CableSafe™ Guarantee
ProWarm™ is the only company that offers you a no quibble exchange on a
damaged cable!
If you damage your heating cable during installation then on receipt of the
damaged cable/mat we will send you a new one of the same size free of charge.
Only one cable/mat per Invoice.
This amazing free peace-of-mind insurance is only offered by ProWarm™ – No
waiting for a repair engineer to come out and no more expensive mistakes – as
soon as we receive your returned cable/mat we will send you a new one on next
working day delivery.
Please visit website for full terms and conditions.
www.ProWarm.com
SAFETY GUIDELINES
This installation manual has been designed for your safety. For a successful installation please make sure you have understood the guidelines and adhered to all the instructions
IMPORTANT
Flat bottomed furniture MUST NOT BE placed over areas where the heating
mat/cable is installed as this can restrict airflow to the floor, causing
thermal blocking, and in extreme cases may lead to the cable overheating
causing a possible fire hazard. This also includes rugs, bean bags, or any item
which has a tog value greater than 2.5. The supplied Commissioning Record MUST
BE completed, including a floor plan sketch, to indicate heated areas, which
must be permanently fixed in or near the distribution/fuse board as required by
the 17th Edition BS7671 amendment 3
| MATTRESSES
---|---
| BEAN BAGS
| ANIMAL BEDS
| RUGS
| FLAT BASED FURNITURE
Unit 12, Carnival Park, Carnival Way, Basildon, Essex, SS14 3WN
T: 01268 567019 www.prowarm.com
Installation video
Scan QR code to watch this installation video giving you step-by-step guidance
for a successful installation.
https://www.youtube.com/watch?v=qnW_weklnOQ
www.prowarm.com
support 01268 567019
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>