WIRSBO

2. WIRSBO “Wirsbo pePEX - An advanced Material for Underfloor Heating Applications”

3. Introduction • Aims • Explain how underfloor heating works • Examine advantages & disadvantages of various heating systems • Objectives • Provide solutions to common heating problems • Resolve factors affecting specification • Outcome • Show how you and your clients can benefit from UFH • Effect energy efficiency improvements

4. How do modern heating systems work?

6. Basic principles • Radiators • Transfer heat from very small & very hot surfaces (750C) to the room (200C). • High rate of convection. • UFH • Transfers heat from a surface slightly warmer than the room (290C to 200C) • Very high rate of radiation. • Natural, comfortable warmth.

7. Modern Underfloor Heating • Mainly warm water • High tech plastic pipe in or just below floor • Water is 45-60OC • Forms to suit most floor constructions • Well proven controls • Economical to run • Reliable, long lasting • Maintenance-free

9. Solid Floor Construction

10. Pipe set in place before screed is laid

12. Suspended Floor Construction

13. Cross-batten wooden suspended floor

14. Floating Floor Construction

15. Floor Cross Section

16. S Plan layout

17. Familiar Technology 20°c

18. How do Radiators Work? 27°C 27°C 27°C 19°C 20°C 50°C HIGH HEAT LOSS THROUGH WINDOWS 17°C 17°C 17°C Stratification leads to higher temp. and thus high heat loss

19. How does UFH Work? 20°C 20°C 20°C 27°C to 29°C 27°C to 29°C 27°C to 29°C Just like one big low temperature radiator

20. Energy Savings with Underfloor Heating • No hot air in front of glass =Lessheatlossthroughwindow • No hot air at ceiling level =Lessheatlossthroughceiling & wall • Lower air temperature for same comfort =Reduced number of air changes • Uses lower water temperature = Lowertransmissionlosses • Options to use non-fossil fuel heat sources and boilers in condensing mode

21. Advantages of UFH • Very comfortable • No ‘hot heads or cold feet’ • Does not promote floor draughts • No drying of the air • Reduced dust levels • Unobtrusive • Walls left completely clear • Floors and walls are easier to clean

22. Other Advantages of UFH • Quiet • No creaks and groans, especially in solid floors • Safe • No hot surfaces - important to HSE • No sharp edges to cause injury • This is the Ultimate low surface temperature radiator • Nothing to vandalise • (In Sweden only UFH is allowed, by law, in Children's nurseries)

24. Observation Radiators were a great advance when the alternative was to have a open grate in every room ... and now UFH is the ultimate radiator

25. Summary • Underfloor Heating today is:- • Clean and ‘green’ • Comfortable • Invisible • Quiet • Safe • Energy-efficient • Maintenance-free UFH has come a long way, and is right for the UK too!

26. WHAT CAN DO FOR YOU?

27. We offer a complete package • Quotation • Design • Installation • Commissioning • Full system documentation • 25 year warranty • After Care Support

28. Your client will have the advantage of: • Running costs considerably lower • Reduced heat loss at windows and ceilings • Lower air temperature more comfort • Lower water temperature

29. What do we need from you • Design criteria and specification • Drawings – CAD format • Integration into your build programme • Unimpeded access to floor areas (for a short time) • Systems need to be covered immediately after installation to avoid damage • Communication – co-operation

30. Wirsbo has the following accreditation: • BBA Agrément Certificate (87/1799) for the full system • ISO 9001 Quality Assured • ISO 14001 Environmentally Assured • WRAS Approval • BSRIA Approval – Market leaders in the UK • DIN 16892 – Pipe manufacturing regulation • 25 Year Written Warranty • Industry leading accreditation