WHS Halo’s unique thermal inserts allow higher WERs to be achieved in a simple, cost effective way. The inserts slide into the outer frame profile and subdivide the main profile chamber into equally spaced sub chambers. This significantly reduces the convection/air circulation within the profile to provide lower U-values and greater thermal efficiency.
Fabricators and installers have found they can achieve WER A ratings, even with large outer frames, by using a thermal insert in combination with low U value glazing units. So successful has this innovative technology proved that WHS Halo’s range of inserts has now been expanded to include solutions for 70mm profile.
WHS Halo's thermal inserts more than compensates for the reduction in solar gain that results from using a large outer frame. A typical casement with a large outer frame has a solar gain of 42%, which is 3% less than a comparable 56mm frame casement. Normally, this would lead to a lower WER rating but a thermal insert will lower the frame U-value by an amount that more than offsets this effect.
WHS Halo first introduced its thermal insert technology for small outer frames in 2008.
- Features & Benefits
- Accreditation
- Gallery
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Thermal inserts – Key Features
- Achieve higher WER values
- Simple & cost effective
- Inserts easily slide into the outer frame profile - quick installation
- 4 chambers subdivide the main profile chamber into equally spaced sub chambers - significantly reduces the convection/air circulation within the profile to provide lower U-values and greater thermal efficiency
- Achieve WER A ratings, even with large outer frames*
- Suitable for use with System 10 70mm as well as 62mm systems
- Inserts can be used with 56mm and 72mm upstand outer frames
- Can be cut and welded together within the outer frame for maximum thermal efficiency
- WER A ratings can be achieved with small outer frames**
(*in combination with low U value glazing units **when using a 28mm double glazed K glass unit. With large outer frames an A rating can be achieved by using a 28mm soft coated unit, with a Duralite, Superspacer or Swisspacer bar) |
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ISO 9001 - FM 10198
ISO 14001 - EMS 56667
OHSAS 18001 - OHS 82381 |
BS EN 12608
KM 12892 |
BS EN 7950 / 12608
KM 34443
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PAS 23-1 & PAS 24-1/12608
KM61039 |
WHS Halo’s business operations are assessed to the international standard ISO9001:2000, which superseded BS5750. WHS Halo’s products have been installed in private and public sector dwellings, including high rise flats and apartments, schools and commercial buildings for many years. The performance record of these products has been, and continues to be, admirable. Commercial clients include Local Authorities, Health sector organisations and the Ministry of Defence. WHS Halo recognises that achieving independent accreditation for products is a further tangible way of demonstrating product suitability and reliability and has invested in a series of independent product accreditations.
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