Hep20 Technical Handbook

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Hep 2 O ® Design Considerations Systems Planning Typical Domestic Plumbing Arrangements Combination boiler Room thermostat Service main Figure 12 Direct and sealed (unvented) system using combination boiler 56
Introduction Underfloor heating provides a comfortable, highly energy efficient type of heating. It delivers an invisible warmth, with no unsightly heat emitters compromising the building layout. Allowing maximum usable area within the building, it is ideal for both renovation and new build methods of construction. This may include the heating of a conservatory, a one room extension, domestic or commercial applications. It is also ideally suited for the high-ceilinged spaces encountered in churches and atriums. A modern underfloor heating system consists of continuous plastic pipe circuits buried in a concrete screed or run below a timber floor system, either floating or suspended. The Hep 2 O ® underfloor heating system utilises low temperature hot water, typically 40-55ºC, unlike conventional heating methods such as radiators or convectors. See Figure 13 for a typical domestic underfloor heating layout. Material Hep 2 O ® Underfloor Heating Pipe is manufactured principally from polybutylene (PB), a high quality engineering polymer, designed specifically for use as a flexible plumbing material. The highly flexible nature of polybutylene means it is the ideal material for an underfloor heating installation, allowing the installer to form pipe circuits with ease, without the need for preliminary tempering or prewarming as with other materials. Hep 2 O ® Underfloor Heating Pipe is supplied in 16mm and 20mm diameter Straight Coils, and a variety of lengths, enabling the installation of long continuous circuits with minimal pipe wastage. Hep 2 O ® Underfloor Heating Pipe is corrosion resistant and unaffected by corrosion inhibitors when used in accordance with manufacturer’s recommendations. Benefits The major benefit of an underfloor heating system to the end user is the comfort level provided. Underfloor heating gives an even warmth across the entire room from the floor upwards. Optimum, individual comfort in these conditions is achieved when the feet are a few degrees warmer than the head. Hep 2 O ® Underfloor Heating Pipe is designed for use in underfloor central heating systems. It is supplied with an oxygen diffusion barrier offering maximum protection against oxygen ingress. The design of the barrier within the wall of the pipe offers significant advantages over underfloor pipes with an external coating. Figure 13 Typical domestic underfloor heating layout Hep 2 O ® underfloor heating manifold Laying Hep 2 O ® pipe 57
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Uniclass L5171 CI/SfB (53) In6 E271
Page 3 and 4:
Contents Introduction to Hepworth 2
Page 5 and 6:
The Hep 2 O ® System Introduction
Page 7 and 8: Retaining Cap Grab Wedge Wedge Supp
Page 9 and 10: Typical Plumbing Connections Wash h
Page 11 and 12: Performance Benefits No Scale Build
Page 13 and 14: Stopcock - Cold Water, Hep 2 O ® /
Page 15 and 16: Hep 2 O ® Pipes Cut Lengths - Stan
Page 17 and 18: Hep 2 O ® Demountable Fittings Dou
Page 19 and 20: Hep 2 O ® Demountable Fittings Bra
Page 21 and 22: Hep 2 O ® SlimLine Fittings Straig
Page 23 and 24: Hep 2 O ® SlimLine Fittings Branch
Page 25 and 26: Hep 2 O ® Auxiliary Fittings Adapt
Page 27 and 28: Hep 2 O ® Auxiliary Fittings Wall
Page 29 and 30: Hep 2 O ® Auxiliary Fittings Shut-
Page 31 and 32: Hep 2 O ® Auxiliary Fittings Two P
Page 33 and 34: Hep 2 O ® Auxiliary Fittings Radia
Page 35 and 36: Hep 2 O ® Ancillary Items Pipe Cli
Page 37 and 38: Hep 2 O ® Ancillary Items Copper P
Page 39 and 40: Hep 2 O ® Conduit System Conduit T
Page 41 and 42: Hep 2 O ® Accessories Hep 2 O ® C
Page 43 and 44: Hep 2 O ® Performance Data Strengt
Page 45 and 46: Thermal Characteristics Thermal con
Page 47 and 48: Electrical Safety Hep 2 O ® piping
Page 49 and 50: Connection to Compression Fittings
Page 51 and 52: Connection to Steel Pipes and Threa
Page 53 and 54: Connection to Boilers and Heaters W
Page 55 and 56: Hep 2 O ® Design Considerations In
Page 57: Typical Domestic Plumbing Arrangeme
Page 61 and 62: System Sizing For pipe sizing Hep 2
Page 63 and 64: 100.0 28mm 80.0 60.0 50.0 40.0 30.0
Page 65 and 66: 50.0 28mm 40.0 30.0 20.0 3.0 2.0 1.
Page 67 and 68: Parameters for Drilling Through Tra
Page 69 and 70: Hep 2 O ® Manifolds and Microbore
Page 71 and 72: Pipes in Concealed Locations Hep 2
Page 73 and 74: Hep 2 O ® Design Considerations Co
Page 75 and 76: Domestic Timber Floors With Traditi
Page 77 and 78: To facilitate the possible removal
Page 79 and 80: Conduit terminations at wall surfac
Page 81 and 82: 2. Fix each conduit pipe to noggins
Page 83 and 84: Hep 2 O ® Design Considerations Re
Page 85 and 86: Use of Corrosion Inhibitors Corrosi
Page 87 and 88: A Flexible Answer for Prestige Apar
Page 89 and 90: As an alternative to separate Barri
Page 91 and 92: Valves • Valve types shall have a
Page 93 and 94: Hep 2 O ® Precautionary Advice Tro
Page 95 and 96: Raw material sourcing The mining of
Page 97 and 98: Hep 2 O ® International Standards
Page 99 and 100: Drylined walls and Hep 2 O ® 80 Du
Page 101 and 102: Straight connector Demountable 14 S
Page 104: Edlington Lane Edlington Doncaster
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