We set up 4 test bays and used a high resolution thermal imaging camera to take pictures every 15 seconds to put this time lapse together.
The conditions for each test were the same and included the following:
Ambient temperature in the warehouse of around 5 to 6C
16mm underfloor heating pipes
Water flow rate of 1.5 litres/minute
Water flow temperature of 35C
Thermal camera temperature range of 5 to 30C
Each floor was heated for an hour and then allowed to cool for half an hour.
The results speak for themselves
The four floors are as follows:
1. Top left: Lewis Deck on timber joists at 1200mm centres with 25mm foil faced insulation between the joists, underfloor heating pipes and 50mm depth of Gyvlon Thermio+ screed. The Lewis, pipes and screed have a total depth of 50mm.
2. Top right: Aluminium spreader plates on joists at 400mm centres with 25mm foil faced insulation between the joists, 16mm pipes and a standard 22mm chipboard floor above.
3. Bottom left: insulation with DPM over and 16mm pipes fixed through with 40mm of Gyvlon Thermio+ screed.
4. Bottom right: insulation with DPM over and 16mm pipes fixed through with 75mm standard concrete
Update September 2016 - we can now provide a Lewis Deck underfloor heating system that is 36mm in height - that is 36mm from the top of the joists and therefore, typically, only 14mm thicker than a 22mm chipboard floor!
www.cdi-icm.co.uk
Негізгі бет Ғылым және технология Lewis Deck and Gyvlon Thermio + screed underfloor heating comparison
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