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HotWat (HW)

 

Product Features

                                    
 
 
HotWat is an industrial/commercial grade self-regulating heating cable designed to compensate for the heat losses from hot water distribution systems.

When hot taps are infrequently used, the water resiidng in the distribution pipework cools ans is usually run to watse before hot water from the storage cylinder arrives at the tap.

HotWat will not overheat or burnout, even when overlapped upon itself. Its power output self-regulates in response to the pipe temperature.  Its self-regulating characteristics improve safety and reliability.

By applying HotWat to the pipework (beneath the thermal insulation), heatlosses are eliminated and the water is maintained at the required temperature.  Further savings are achieved by removing the recirculating pipework together with pumps and valves.
 
The installation of HotWat is quick and simple and the cable can be cut to match the exact length of the pipework.  It requires no special skills or tools. Termination, splicing and power connection components are all provided in convenient kits. See Product, Application and Documentation Links below.
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Thermoplastic Outer Jacket
   
 
   

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Product Specification

Maximum Withstand Temperature 100°C (212°F)

 
HotWat is available in two systems. HWR is simply used to maintain pipework  at approximately 50-60°C, whilst HWP is used to maintain 45-70°C during normal operation with an extra disinfection feature at timed intervals to reduce riskd of legionella.

  Maximum Withstand Temperature 100°C (212°F)
  Maximum Energised Temperature 100°C (212°F)
  Power Supply 12 - 277 VAC
  Cable Dimensions 12.7 x 5.95mm +/- 0.5
   
  Minimum Installation Temperature -40°C (-40°F)
  Minimum Bending Radius 30mm
  Weight kg/100m 11.8 kg
  Maximum Resistance of Protective Braiding 18.2 Ohm/km
  Cable Gland Thread Size M20

 

 
 
Maximum Circuit Length (m)  for various circuit breaker sizes
 
 
Product
Reference
Start-Up
Termperature (°C)
230v
6A
10A 16A 20A      
 
 
  HWR 18   56   92   128                  
    0   38   64   102   128              
  HWP 18   34   56   90   94              
    0   24   40   64   80              
 
 
For use with Type C circuit breakers to IEC 60898
 

 

 

 
 
Recommended Insulation Thickness (mm)
 
 
Product
Reference
Maintain
Termperature (°C)
Pipe
15
Size (mm)
22
 
28
 
35
 
42
 
54
     
 
 
  HWR 60   25   30   40   50   60   75      
    55   20   25   30   40   50   60      
    50   15   20   25   30   40   50      
  HWP 45-70   30   40   50   60   75   75      
 
 
Above figures based on the thermal insulation having a K-value of 0.038 W/mk at 35°C mid-point temperature.
 

 

Product, Application & Documentation Links

Standard Terminations

DESTU
Terminations
 

 Stripfree Terminations

Associated Products

Associated Applications

Approvals and Certification
FSM,FSLe,FSr,FSP,FSS,AHT,MTF,EMTF,HTS1,2 & 3F 3009080
10,17,25 & 31FSR2-CT or CF 17,25,31 & 50FSP2-CF 12,17 & 23FSLe2-CT or CF 114665
EU DoC HotWat, HW
Product and Application Datasheets
HotWat Datasheet

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